The water pressure booster pump is a very important part of the water supply system. They are mounted in individual and centralized systems, as an increase in pressure increases productivity. They are also very often used in everyday life, because this problem can cause numerous problems with the full functioning of technical devices in the house, such as washing machines, dishwashers, speakers, etc. In our article, we will discuss the features of its work, varieties and advantages.

To denote such a concept as pressure, two such quantities are used:

1. bars;
2. Atmospheres.

Important! The ratio of these two quantities is displayed in such a scheme: 1 bar \u003d 1.197 atmospheres \u003d 10.19.

There are norms for pressure in city water pipes, according to which it should be 4 atmospheres. Today, pressure drops can be frequent and high and can ruin your device, because 6-7 atmospheres have a devastating effect on the system. Especially in this situation, imported modern technology is sensitive. If the pressure, on the contrary, is low enough, then this may affect the operation of the washing machine and dishwasher.

Important! The lowest indicator for the work of elementary equipment should be at least 1.5 atmospheres, and for the work of firefighters - 3 atmospheres.

If you are going to buy a pump to control water pressure, then you need to decide on the problem. The most popular complaints about the operation of water supply systems are:

• Weak water pressure in the tap;
• Lack of water on the upper floors of the building.

The first problem can be solved by installing a pump, but for the second it will be useless. In such a situation, it is necessary to install a pumping station.

The concept of a pressure booster pump

Normalizing the operation of an autonomous water supply system takes a very long time. Although many people think that it is enough to make a well and install a pump in it, it is important to know that the water temperature is very low, so it has to be stored in a container, and because of this, the head pressure may drop. To get out of this situation, a flow mechanism was invented to increase pressure.

Their direct purpose is to fully optimize the pressure level in the water supply system in a house or apartment. They have the highest demand on individual plots. Sometimes such pumps are installed to maintain the technical requirements of the instruments.

Design features

Design features are manifested in the hardware complex, which consists of several units - an electric motor and a pump. The specifics of the application require the use of optimal materials such as:

• Ceramics;
• Brass;
• Steel that does not rust;
• Cast iron.

Attention! It is worth noting that all of the above materials are united by a common feature - this is corrosion resistance.

The pump housing is almost completely immersed in water, therefore it has two sockets in its structure:

• Front type for suction;
• Radial feed type.

It is also worth noting that a wet-type rotor is installed here, which accompanies a decrease in the temperature of the installation elements. This part gives the device two such advantages:

• Almost silent operation;
• Extending the life of the device.

Attention! To date, there are equipment with vane coolers, which are much more efficient, but also have more noise during operation.

Advantages of the pressure booster

This type of device has a large number of advantages in its performance, which reflect the ease and comfort of their operation:

• They have the ability to increase and maintain the stability of the pressure level;
• small parameters;
• Optimum noise level;
• High resistance to corrosion;
• Installation variations on the pipeline;
• Ease of installation and removal of the structure;
• Automatic work;
• Low energy consumption;
• Ability to work with different temperature conditions of the liquid.

Areas and effectiveness of application

The following factors can influence the pressure drop:

• Filter clogging;
• Overgrowth of pipes;
• Plenty of water intake, etc.

For multi-apartment buildings, such situations are easily resolved, but for individual systems, a pressure booster will be the most optimal solution to the issue.

If the pump works in conjunction with the drive, then they can easily cope with water intake problems. Such a scheme has a huge number of advantages in operation, especially for a surface or submersible apparatus.

When installing a pressure boosting pump, not everyone makes the correct calculations for its performance, and this is a very important detail. Indeed, if the indicators of the device and the line do not match, then the effect may not appear. First of all, this is due to the fact that the installation of the device does not increase the pressure of the main, because it combines several points of water intake. The final result will be a decrease in fluid supply.

Attention! If your neighbors already have such a pump, then they reduce the level of your flow of cold and hot water. It is necessary to pay attention to this. Indeed, in this situation, the pressure booster starts to work as much as possible, which reduces its life cycle.

For the best result of the efficiency of the device, it is necessary to mount it together with a special tank.

In the event that the room does not have the parameters for accommodating this installation, then a submersible pump can be installed, which is placed in a container. Its main advantage is its compact size and silent system performance. In addition, it has a membrane storage area, which can be included in the central or main system.

It is also worth highlighting the disadvantages of functionality - this is a more complex installation. In addition to connecting to the highway, you also need to configure the automation of work.

Advice. To avoid mistakes, you need to use standard connection mechanisms or use the services of professionals. But, do not forget that if your pump fails due to improper installation, then the warranty ceases to apply and you will have to carry out repairs at your own expense.

Types of models

The problem of unstable pressure covers a large number of areas of human activity, so the market segment contains a large number of models for different purposes and a distinctive volume. As for the size, there are devices that are compact for domestic installation and overall for industrial areas.

Now we will get acquainted with these types in more detail.

Household pumps

These types have a number of such advantages:

1. Compact, handy size;
2. Low energy costs;
3. Low price;
4. Ease of operation.

Attention! Household devices function optimally in the temperature range from -15 to +100 degrees.

• steel;
• cast iron;
• metal-plastic;
• Polypropylene.

Pumps are also divided according to such a criterion as the type of control:

1. manual;
2. Automatic.

Manual pumps

What is this mechanism? This is the connection and shutdown of the system on its own, which provides some inconvenience for operation.

It is also worth highlighting the advantages of this type of equipment:

• Very high resistance to overheating of the device;
• Small cost;
• Durability. Very rarely there are system failures.

With automatic control

The automatic control pump starts to work as soon as the intake opens, and its volume instantly collects data on the flow sensor. When closed, the faucet automatically shuts off. This mode prevents dry operation of the device, which increases its life cycle. It is worth highlighting the disadvantage of the system - this is its high price.

But this is not a huge minus for the performance of the device, as it has a huge number of significant advantages:

• Convenient operation of the device;
• Small installation dimensions:
• Low noise level during operation, which almost does not stand out from the general background;
• They have a hydraulic accumulator that can operate at zero pressure;
• High engine power.

Other types of pressure control pumps

There is also a classification according to such a criterion as the method of cooling the body, which can occur during the operation of the impeller or pumped water. There are such types:

• Cooling occurs during the operation of the blades, which are mounted on the shaft. The design is called a dry rotor. Characteristic features for them are: high efficiency, low noise level.
• Liquid cooling, or the so-called wet rotor. Signs of difference of this type is the silent operation of the device.

Attention! There are also universal models that are suitable for working with any water temperature.

The most famous brands of pumps

To date, there are a number of leaders in the production of water system pressure boosters. All of them have a common structure scheme, but are made of different materials. Let's take a look at them:

• WILO is a manufacturer of high quality pumps, reliable, easy to operate and with a long-term guarantee;
• Cl15grs 15 is a pressure booster pump, which is characterized by the presence of a flow sensor, which is included in the power supply circuit;
• Grundfos - the second in terms of demand in the country, differs from WILO in its lower price and silent operation;
• OASIS pumps - their biggest plus, which distinguishes them from other manufacturers - is the ease of installation and dismantling, the durability of the device;
• Aquaphor is a pressure booster that is characterized by ease of installation and high reliability.

Choosing the best pump

• Power and performance indicators;
• Noise level during operation;
• Authority and accreditation of the manufacturer;
• The maximum number of pressure that the device can produce.

Individual characteristics of models that you should pay attention to when buying a pump:

• Dimensions . It is worth choosing the dimensions that are suitable for installation in the place you have planned.
• Temperature range. This indicator depends on the nuances of your plumbing system.
• Connection options. For each pipe, you need to select the appropriate modification.

When choosing a pump, you must know the system pressure and performance. You can find out these values ​​\u200b\u200bin your own or hire a specialist. We will give you a small diagram so that you understand the deduction system. If the pressure in the system is 1.5 atmospheres, then a compact device that can be installed in the pipeline is also suitable for its maintenance.

Advice! Purchase pumps from licensed retailers.

We connect to a common highway

If your house consists of a highway system, then this must be taken into account when installing the pump. It’s just that not only you, but also all neighbors can have such equipment - this will lead to the fact that the mechanism will work at full strength, and the pressure will not increase. In addition, this situation can lead to a breakdown.

Advice! To avoid this situation, you need to install a storage tank in which reserve water will be stored. This liquid is very useful when reducing pressure.

The purchase and installation of a booster pump for a water supply system will ensure the stabilization of the water pressure in the system. Old underwater highways (tie-ins) lose capacity over time, cease to provide residential buildings with acceptable water pressure.

This leads to the impossibility of using several points of its consumption at the same time. Installing the device will ensure the functioning of household water appliances, creating conditions for acceptable living.

Application and installation of a water pump for pumping water to a central water supply

A booster pump is used when it is necessary to increase the pressure in an existing water supply connected to a central water supply. It creates sufficient pressure in front of the points of water analysis.

Such devices are also used for industrial purposes in the form of large backup installations that work to extinguish situations associated with accidents.

The main parameter of the water supply system is the degree of water pressure in the system. Acceptable pressure in the pipe will allow you to operate the entire plumbing system. European standards prescribe its value at 4-4.5 atmospheres. Less pressure will not ensure the operation of the washing machine and dishwasher, hydromassage shower cabin, jacuzzi, geyser.

For a stable water pressure, structures are used that operate in two modes:

• manual mode, which involves the operation of a constantly on pump;
• automatic mode, which ensures the operation of the pump using a water flow sensor. Such products are preferred. They are protected in the lack of water mode.

Pumps for pumping water are installed in apartments, private houses, country houses, cottages. The main condition for their reliable and proper operation is the skillful connection of the electrical and water systems in accordance with the attached instructions.

Read also our article about and ways.

Old apartment buildings require pipe replacement. This would be the best option to increase the pressure in the apartments. But this process is long, laborious, and therefore unpromising. Some residents solve the problem with water pressure by installing pipes of a smaller diameter, but this measure is costly and not always effective. Installing a booster pump with a storage tank in the water supply system eliminates the problem.

There is a wide selection of a wide variety of devices, according to the design features of the water supply in the apartments. The industry produces products installed on a riser with hot water. Such designs allow you to change the pressure in the pump with the help of adjusting screws.

Some types of devices increase the pressure when the hot water tap is opened directly. They are applicable when using household appliances: showers and water heaters.

With insufficient water pressure in the house, minimal diagnostics are carried out, including checking the serviceability of stop valves (faucets, valves), the patency of risers, and the presence of domestic pipe contamination. Convinced of insufficient pressure in neighboring apartments, it becomes necessary to purchase a pumping station for the whole house.

A pumping station is a type of water booster pump that has a hydraulic tank or a hydraulic accumulator. It is mounted between the water supply and the water source, generating pressure in the plumbing system. If this is installed in the house, but the water pressure in the apartments is not sufficient, it is changed to a more powerful one. Sometimes it is enough to replace the accumulator or pump, or adjust the pressure using a pressure switch that monitors the operation of the accumulator and pump.

The principle of operation of the pump for pumping water

The principle of operation of any booster pump for water supply is that the equipment system increases the pressure in the water supply network depending on the pressure available in the water circuit.

The advantage of an individual heating system in a private house or apartment lies in the short distance the coolant passes from the heating source to the battery. Forced circulation implies the presence of a pump that pumps water through the heating elements: batteries, registers, pipes.

The pump is installed on the return water supply pipe, draining the coolant beforehand or shutting off the available taps on the pipeline. The correct installation of the pump will be indicated by an arrow, the direction of which coincides with the direction of movement of the coolant. After installing the coarse filter and the pump itself, the system is filled with water, removing air by opening the central screw. The unit is connected to the network with a conventional electrical plug.

The booster pump is installed strictly in a horizontal position. It will contribute not only to its quiet operation, but also to prevent damage to the rotor.

Pay attention to the installation of the pump terminal box to prevent water or condensation from entering it. It is strictly forbidden to operate the unit in the absence of a coolant in the system. The pump, equipped with a thermostat, is installed away from water heaters that can affect the operation of the thermostat.

With larger rooms, water consumption increases significantly. Installing one pump may not fully provide the desired pressure. In such cases, several pieces of equipment are installed.

How to choose a booster pump for a private house

When choosing a product, we evaluate the condition of the plumbing system. The choice of the unit of the required power depends on this.

When choosing and purchasing a pump for pumping water, it is necessary to take into account its main characteristics:

• performance;
• power;
• performance;
• the size;
• guarantee period;
• price.

The units differ in technical characteristics and in the method of cooling the engine and housing. Products with a "wet" and "dry" rotor are purchased.

The process of cooling devices of the first type is carried out by the liquid itself. They are silent in operation, but demanding on the quality of the pumped water, requiring constant and timely maintenance.

The motor housing of units with a "dry" rotor is cooled by means of an impeller. They are practical and reliable, although a bit noisy. This type of pumps is in high demand when buying.

Some booster pumps are made with a fixed pressure rise, other models can have several operating modes, are made with several sensors, control units, and can be connected to a control panel.

Stations for increasing pressure are purchased in the absence of water in the taps. The presence of good water pressure from the neighbors below indicates that it does not reach your riser.

Overview of manufacturers of pumps that increase the pressure in the water supply

1. Products of high power and high quality are offered by the company
   TAIFUN. An extensive range of products that can satisfy the most sophisticated customer.
2. Danish company pumps
   GRUNDFOS are small in size and quiet in operation. They are made with two types of housings: stainless and cast iron. The products are reliable and have a long service life.
3. Products of the German concern
   WILO gained fame due to the high quality of products. The concern's branches are located in many countries of the world. The functional parameters of the manufactured units allow them to be used both in private houses and in apartments. The products are corrosion resistant and have a high protection class.

Cost calculation

Sheets for calculating the cost of the device are processed by employees offering a product that best meets the customer's conditions.

Those wishing to purchase the product fill out the questionnaire and send it in any acceptable way.

You can find out how the installation is done by watching the video:

Installing a pump that increases the pressure in the water supply system ensures the uninterrupted operation of all gas and water appliances, provides the opportunity to use water in bathrooms, jacuzzis, and showers at any time of the day. The downside is the problem of space in the apartment when installing a hydraulic accumulator. You need to remember this nuance when installing a tank of 200-300 liters.

Consumption ecology. Manor: The lack of sufficient water pressure in the system is, of course, not a disaster, but there is little pleasant in such a situation. If you wash dishes or take a shower somehow, then household appliances, such as a washing machine or dishwasher, may simply refuse to work. Luckily, water pressure pumps have been invented to solve these kinds of problems.

The lack of sufficient water pressure in the system is, of course, not a disaster, but there is little pleasant in such a situation. If you wash dishes or take a shower somehow, then household appliances, such as a washing machine or dishwasher, may simply refuse to work. Luckily, water pressure pumps have been invented to solve these kinds of problems.

How it works

The problem of low pressure in the water supply is solved using two types of devices: circulation and self-priming pumps. The former are simpler and easier to install into the system. A conventional circulation pump consists of a rotor, an impeller mounted on it and an engine that rotates it all. Usually, if there is water in the system, but its pressure is weak, one or two pumps are enough.

The task of increasing the pressure in the water supply system is solved in two ways: by installing a circulation or centrifugal self-priming pump

But if water does not flow to the upper floors at all, you will have to install a high-power pumping station with a hydraulic tank. Such a device is simply installed as part of a plumbing system in a suitable location. The impeller spins, giving the water flow additional acceleration.

As a result, the pipes fill with water faster, providing the necessary level of pressure in the water supply. These are compact low power devices designed to solve local problems. Suction pumps are characterized by higher performance and more complex device.

In addition to a suction pump capable of pumping water to a considerable height, the system is also equipped with a hydraulic accumulator equipped with a special membrane. The operation of this technique is automated, a pressure switch is used. Water is first supplied to the storage tank, and then enters the water supply, providing the necessary characteristics within the system.

Thus, if a centrifugal pump allows you to eliminate the problem in a particular area, then suction equipment is used to regulate the entire plumbing in a house or apartment. Self-priming booster pumps are capable of lifting liquid to a height of up to 12 m, while their power starts from 2 kW / h.

The booster pump works as follows. When the water flow reaches 1.5 cubic meters, the motion sensor petal changes position. This causes the pump to turn on automatically. When the water flow stops, the pump turns off. This type of equipment is used both in private cottages and in apartment buildings.

It is especially relevant in high-rise residential buildings, where it is impossible for various reasons to ensure the normal delivery of water to the upper floors without a special pump. Installing a single pump or even a special station with increased power can be a real salvation for residents of the upper floors.

Sometimes you have to use not one booster pump, but two or more. Such a need is sometimes faced by owners of houses in which the plumbing system was originally designed with errors. In this case, you will have to calculate the cost of reworking the water supply (if such a possibility exists at all) and the cost of installing additional equipment.

A small pumping station installed in front of household appliances will ensure a normal supply of water

It should be remembered that special types of equipment are intended for pumping hot water. They are made of special heat-resistant materials, so they are more expensive than simpler models designed for contact only with cold water. There are also universal booster pumps that are suitable for both cold and hot water.

The power of a conventional circulation pump is small, it consumes less energy than some incandescent lamps. When it is included in the system, it is possible to achieve an increase in pressure by about 2-3 atmospheres. If more serious correction of characteristics is required, more powerful equipment should be preferred.

Circulation pumps tend to work "to a dead end", i.e. they do not need to be turned off even if all taps are closed and no water is taken from the system. Inlet pumps operate in approximately the same way to increase water pressure. These devices are similar in design to circulation models.

If such a pump is turned off, water will circulate freely through its housing. As soon as power is supplied to the motor, the pump turns on. The impeller begins to rotate and the water pressure in the system increases. When faced with a choice between automatic or manual systems, the former is usually preferred.

Comparison of the scheme of the plumbing system with and without a booster pump allows you to more accurately represent the installation procedure for such equipment

It is more convenient to use such equipment, and it lasts longer, because it does not work idle. It makes sense to take a manual pump only in cases where it will be used either for a very short time (temporary option) or extremely rarely (in summer, in the country, only on weekends).

The diagram clearly shows the device of a pump with a wet rotor. Water washes the moving parts of the pump and absorbs excess heat

The concept of dry and wet rotor refers to information about the cooling system of the device. In the first case, it is cooled by the air flow, and in the second - by the flow of pumped water. A wet rotor pump is cheaper, but has a shorter life due to the negative effects of sediment that accumulates on the working parts during pumping water. Models with a dry rotor cope with their tasks more efficiently, and their service life is longer.

Pump power and system requirements

The power of the device must be commensurate with the needs of the system. Lack of pressure is bad, but too much pressure is not needed. If a too efficient pump is selected for the water supply, the pressure in the system will increase, and all its elements will be subjected to unnecessary additional load. This leads to rapid wear and frequent breakdowns.

The water pressure in the system must not be less than two atmospheres. This is enough for comfortable water procedures, as well as for starting an automatic washing machine. Although some models are more demanding in terms of operating conditions. For example, if the house has a shower, hydromassage, jacuzzi or other similar devices, the pressure should be higher.

In this case, it is better to increase the pressure in the plumbing system to 5-6 atmospheres. Certain types of equipment require even higher performance. Therefore, the first step before installing a pressure boosting pump should be to study the documentation of household appliances. If any devices are planned to be purchased in the future, their characteristics also need to be taken into account.

To create a constant high pressure in the system, special pumping stations are used, including a pump and a hydraulic tank. Their work is controlled by a pressure switch.

Accurate calculations can be made by a specialist, but preliminary data made “by eye” are usually sufficient. To determine what pressure really exists in the system, you can use a regular liter jar. The water is opened and measured, how many liters of water poured out of the tap within a minute.

Then you need to deal with current needs. If the inconvenience is due to the fact that it is difficult to take a shower with an open tap in the kitchen due to low pressure, it is enough to use a conventional pump that will increase the pressure by a couple of atmospheres. But if the house has an automatic washing machine, shower or other equipment of this kind, you should study the technical documentation.

Each such consumer requires a certain pressure of water. Lack of sufficient pressure can lead to costly equipment running idle. Household appliances, especially foreign-made ones, are not designed for such operating conditions. A failure caused by a lack of normal pressure can be considered as a case that does not comply with the warranty conditions.

You can focus on the maximum pressure in the plumbing system indicated in the device passports. In the presence of a large number of such equipment, it is worth contacting an engineer for advice. When choosing a model of a water pump suitable for increasing pressure, one should also take into account the needs of equipment, the purchase of which is planned in the future.

How to install a self-priming pump

Installing this type of pump is not difficult. This will require approximately the same skills and tools that are needed to install other types of pumping equipment. Schematically, the installation of a booster pump can be represented as the following steps:

• Choosing a location for the accumulator and pump.
• Installing a hydraulic accumulator.
• Installation of pipes for connecting equipment to the water supply.
• Hanging the pump on the wall.
• Tying the pump and accumulator.
• Checking the operation of equipment in automatic mode.

In fact, a pump and a hydraulic accumulator with a pressure switch is a variation of a pumping station. To implement the installation of such a system of devices, you first need to find a place to place the tank. Some craftsmen replace the accumulator with a membrane with a conventional large capacity, for example, a 200 liter plastic tank.

Instead of a pressure switch, the tank is equipped with a float sensor to ensure that it is automatically filled as needed. Such a tank is installed as high as possible: in the attic or on the top floor. Immediately you should think not only about the size, but also about the configuration of the container.

The flat and narrow tank will take up less space than a traditional cylindrical model. Although there are no special requirements for the capacity configuration. When choosing a place for a container, access to the tank / accumulator or the possibility of easy dismantling of this element should be provided. This is necessary to perform maintenance, repair or replacement of the device.

The photo shows the installation of check valves when installing a plastic tank, as well as the procedure for connecting the inlet and outlet pipes to the water pipe

Hydraulic accumulators are supplied ready for installation, but the tank should be prepared. It has holes for water inlet and outlet. You can also make a separate shut-off valve to drain water in an emergency. Branch pipes for supplying water to the tank and taking it into the water supply system are mounted to one water pipe.

In modern conditions, for the installation of water supply, it is more logical to use easy-to-install and reliable plastic pipes. To prevent air from being sucked into the tank from the pump, and also to prevent water from entering there when the equipment is turned off, check valves should be installed on both pipes. After that, pipes are mounted, with the help of which the tank is connected to the plumbing system.

Circulation pumps occupy a minimum of space, do not interfere with the maintenance of household appliances

After the tank or accumulator is installed, and the necessary water pipes are laid, the installation of the suction pump can begin. Usually such a device is delivered unassembled. It is first collected, and then proceed to installation.

If you decide to mount the pump on the wall, you should first make markings for fasteners. Then the pump is suspended and connected to the water supply pipes. In general, this is not a very difficult operation. An important point is the direction of the liquid in the pump. It is indicated on the case with special marks.

The pump should be installed in such a way that the movement of water is from the tank to the water points. Thus, the scheme for installing and connecting a pressure boosting pump is as follows: accumulator-pump-consumer. Then the pump is tied.

All connections must be carefully sealed. If threaded connections are used to connect the booster pump, a suitable seal should be used: FUM tape, linen thread, etc. The amount of sealant should be sufficient, but not excessive. The device is connected to plastic pipes using special fittings.

After that, you should check the operation of the entire system. If a tank with a float sensor was used, it is filled with water. Check not only the operation of the sensor. The container that serves as a storage tank should be checked for leaks. If everything is in order, you can proceed to testing the operation of the pump itself.

The pump must be connected to the electrical network. It is recommended that the pump switch lever be set to the automatic position. It remains to open the nearest water tap and observe the operation of the device. If the installation is done correctly, the pump should automatically turn on, and the water pressure will increase noticeably.

Similarly, the installation of pressure boosting circulation pumps is carried out. For them, they choose a suitable place in the water supply, and cut it there. In this case, it is also extremely important to correctly connect the pump, taking into account the direction of fluid flow. If the position of the device is incorrect, the pump will still let the water flow through.

Scheme of connecting the circulation pump to the plumbing system. The installation of such a device is very simple, but it is important not to confuse the direction of water flow.

But his work will be extremely inefficient, since the device simply will not function. The instructions and on the housing detail the correct position of the pump. After installation, the pump is turned on in the mains and its operation is checked. If the water pressure at the nearest water intake point has increased, then the installation is done correctly.

A small pressure booster pump is simply plugged into the system. Usually for this it is enough to remove a piece of pipe of the appropriate length at the beginning of the water pipe.

Installing a system with a hydraulic accumulator looks a little more complicated. First you need to deal with the device of the entire structure. The pump is connected to the accumulator using special hoses. Then a pressure switch is connected, with which the equipment will turn on and off.

This figure shows in detail the principle of operation of a pump with a hydraulic accumulator and how to connect it. The pump fills the tank and then turns off

The setting of such a relay deserves special attention. Before starting work, it is recommended to carefully study the instructions and recommendations of the manufacturer. If there is not enough knowledge and skills for high-quality installation and configuration of equipment, it is better to contact a specialist for advice or completely entrust him with all the work.

Not always a booster pump is needed to solve the problem with low water pressure in the system. To begin with, it does not hurt to diagnose the condition of the water pipes. Their cleaning or complete replacement can restore normal pressure without additional equipment.

To understand that the problem is in the poor condition of the water pipes, sometimes it is enough to ask neighbors who live in apartments on the same floor or higher. If they have normal pressure, you almost certainly need to clean the pipes. If the picture is the same for everyone, there may be more serious problems affecting the entire plumbing system of the house and even the area.

In high-rise buildings, water sometimes simply does not flow to the upper floors. This requires high-powered and rather expensive equipment. It makes sense to cooperate with other tenants to share the costs. It is a good idea to demand that the organization that receives payment for the water supply solve the problem, since it is they who must ensure the supply of water to the consumer.

The lack of water on the upper floors is a violation of fire safety requirements. When communicating with the water service provider, it is worth paying attention to this point and mention the possibility of litigation due to non-compliance with the law.

It is best to entrust the installation of equipment in an apartment building to a full-time plumber of the management company. He is also more familiar with the system, and will be responsible in case of leaks or breakdowns caused by poor-quality installation of equipment.

Booster pump video

The operation of a booster pump in an apartment of a multi-storey building is clearly shown in the following video:

When you open a tap in your home to simply drink water, and a sluggish trickle flows from it, then the idea immediately comes to your mind to install in the water supply line.

The sufficiency of water pressure in the pipes is the key to the normal life of a person living in a private cottage, in a country house or in a high-rise apartment. This is very important for the trouble-free operation of domestic hydraulic machines and plumbing fixtures. This is one of the very important conditions for your comfortable living and the durability of expensive water equipment in your home.

For the normal operation of the main models of household hydraulic machines and plumbing units, the water pressure in pipelines from 2 to 4 bar is sufficient. If at the outlet of the intake taps you periodically or constantly lack these indicators, then you should understand the reasons for this shortage and, if necessary, install booster pumps in your individual or collective use.

Below we will describe the basic requirements for checking the performance of your water supply, the criteria for choosing the appropriate equipment, we will consider various types of pumps for increasing the pressure of water in the mains from different manufacturers.

Key questions covered in this article

• Comparative scale of technical characteristics of water pressure in pumps of various types.
• Possible reasons for the lack of water pressure in the mains.
• Types of pumps for increasing water pressure in pipelines.
• We read the instructions and install the pump.

Comparative scale of technical characteristics of water pressure in pumps of various types

World pump manufacturers use the following water pressure units for the pressure characteristics of different types of pumps:

For quick approximate household calculations, the approximate ratios of these quantities are suitable:

In practice, for the normal operation of household hydraulic equipment with automation, the use of flow taps and the operation of bathrooms, the operation of gas water heaters and boilers, it is enough to maintain water pressure in pipelines within 2-4 bar for all major models of household water devices.

Possible reasons for the lack of water pressure in the mains

The lack of water pressure in your pipelines for high-rise apartments can be due to several reasons:

• Daily fluctuation of water pressure in the water supply due to the frequency of use of the resource by the residents of the house;
• Lack of design capacity of general user pumping equipment from the service organization;
• Temporary deposits of rust and salts inside the pipeline, clogging the body of the water riser:

• Clogged water cleaning filters in the water supply connection system:

In such cases, floor neighbors and residents of the upper and lower floors of an apartment building should be interviewed to find out what water pressure is usually in their apartments. In this way, you can identify the local cause of low pressure in your particular case. It will already be possible to make the right decision to eliminate these problems or stop at the option of buying a high-pressure water pump for individual or general use, coordinating this issue with other residents of the entrance (riser) of a high-rise building.

In a private house, these causes are of a similar type. But there may be various additional reasons for the low water pressure in your pipeline:

• Long distance from the main water supply pump;
• Excessive elevation of the structure and location of the flow valves above the level of the pump installation;
• Discrepancy between the pressure data of the power plant, with a specific layout of power and consumable units, and so on.

Types of pumps for increasing water pressure in pipelines

In practice, it is possible to increase the pressure in the water artery using 2 well-known types of pumps:

1. Insertion into the water supply line of a circulation pump with a wet or dry rotor;
2. Installation in the line of an additional self-priming power unit or an automatic pumping station based on this type of pump.

Approximate connection diagrams for various types of pressure booster pumps:

Circulating electric pumps help in cases where it is required to increase the water pressure in the pipeline with a stable supply, but a low pressure, reaching no more than 1 - 1.5 bar. In multi-storey buildings, using this type of pumps, it is unlikely that it will be possible to create a sufficiently stable pressure for all residents of the riser, even if you install 2 or more pumps. This option is more suitable for an individual increase in water pressure in a separate apartment. This is, so to speak, a "home" version of pressure stabilization.

For this reason, in high-rise apartment buildings, it is better to use a self-priming pump of greater productivity or a pumping station with appropriate automatic water pressure with its own hydraulic accumulator.

With this option, you will not bother with the problems of turning the pump on and off, automation will do it for you.

When installing any type of pump, it should be borne in mind that if there is temporarily no even the smallest water pressure in the taps of a high-rise building on the upper floors, then installing a booster pump will not correct this situation. The pump needs at least a minimum water pressure that meets the technical limits to raise it to the desired level.

If you installed any booster pump only in your apartment, then keep in mind that it will create a discharge effect in the common pipeline before it. And air will be sucked into this rarefied space. It is good if the pump is automatically protected from dry running and its engine does not burn out, but it will constantly turn off. In doing so, you create an even greater pressure drop in the common water supply pipe. If other residents of your entrance or riser follow your example, then this will lead to even more deplorable results with water and real “sanctions” from the water supply organization.

Self-priming pumps are limited by the amount of water rise along the height of the installation from the water surface to 7-8 meters (maximum 12). A large tank for a circulation pump with a supply of water, you also cannot install in a medium-sized apartment. We will have to negotiate and cooperate with neighbors in order to install such a container in the attic of the house.

The most competent and comprehensive solution to these problems can be the installation of a full-fledged automatic station with a self-priming centrifugal pump. The power device must be of high performance. To contain its own hydraulic accumulator of the maximum possible volume and full automation of the water supply process. You can connect this station to the basement collector of the common riser of the general water supply or to an autonomous source. This is the only way to create the required water pressure at the outlet of all taps and not aggravate the situation for the neighbors.

Choosing a water pressure booster pump

Circular pumps are divided into 2 groups:

We are used to considering circular pumps only as elements of heating systems. But they have a wider application.

• Household pumps with a wet rotor. They are more compact and silent in operation. They do not require preventive maintenance to lubricate the friction parts, as this is due to the washing of the rotor shaft with water. They are easy and simpler to mount directly into the water supply pipe using a tie-in and do not require additional fasteners. But this group of pumps has low productivity and low head performance. In addition, these units are installed with a horizontal axis of the motor rotor.
• Circular pumps with a dry rotor have an asymmetric housing shape towards the electric motor. They are cooled by a jet of external air from a special impeller. Requires additional wall mounting. They have better technical capabilities in terms of pressure and performance. They require regular lubrication of rubbing parts. They make quite a lot of noise while working.

Both groups are suitable for cold and hot water, but require constant manual control of the on/off mode.

To save yourself from this, you need to pick up a circular pump equipped with a water flow sensor. Then the pump will start only when the flow valve is opened and there is water in the line.

The same effect can be achieved by installing a separate flow sensor on any group of circular pumps. And if the pressure in the system is unstable and there is insufficient water in the water supply, an additional pressure switch will need to be installed.

Some popular models of circular pumps from global manufacturers: Grundfos (Grundfos):

Jemix circular pumps W15GR and WP series:

Pressure booster pumps from the Wilo brand of the PB and PW series

• Self-priming centrifugal pumps can operate with increasing water pressure, both independently and as part of automatic pumping stations.

• Specialized stations for increasing the pressure of water from the main water pipelines of the Gileks VODOMET M brand are used to tie into the underwater part of individual sources. They have an additional flow-through filter unit for supplying already purified drinking water:

Grundfos specially designed water pressure booster pumping units: CMBE 3-62, 5-62, 1-44, 1-75, 3-30, 3-93 and others:

Read the instructions and install the pump

To solve the problem with the water supply, you should not chase after some exorbitant indicators in terms of pressure and pump performance. You just need to add some 1.0 - 1.5 atm to the existing pressure (10 - 15 meters above the outlet valve).

So you should not have questions about how to choose a pump, what characteristics it should have. It is enough to look at the instructions for this product or listen to the recommendations of the technical manager of the store where you decided to buy the unit. The descriptions of the pumps contain all the data on their connection to the water system (connection diagram), there are rules for installing a specific product and it is described what and how to connect in the desired sequence.

As a last resort, we turn to qualified specialists for practical assistance in installing and configuring the pump in your country house, cottage or high-rise building.

You can learn more about the principle of operation of the listed pumps, how their automation works, from the articles on our website in the heading: or by calling our consultant.