Choosing a pump for water supply at home

The arrangement of a suburban area provides for the creation of a water supply system, which is represented by a combination of various equipment. To create pressure in the system, a pumping station is installed. It is characterized by many different characteristics. A properly selected pumping station for a private house can last for several decades with timely maintenance.

The optimal pump for water supply

A properly created system is capable of fully providing a residential building, the entire territory and a garden with the required amount of water. Uninterrupted flow is ensured through careful thought through the process, which involves the selection of the most suitable apparatus. One of three common methods can be used to supply water:

• Installation of pumping equipment for direct supply of liquid to the consumer.
• A tank is installed for the accumulation and temporary storage of water.
• The use of a special accumulator.

Most often, there is a connection scheme that provides for the installation of only one pump, since it is easy to implement and is much cheaper than others.

When choosing a water pump, technical characteristics are studied, the need for a constant supply of a power source is taken into account. This is due to the points below:

• Frequent activation of the pump can lead to a significant reduction in its service life. This is due to the fact that the starting current is much higher than the working one; at the beginning of the work, the device has a high load.
• During operation, the pump is switched on automatically by various sensors. If voltage is not continuously applied, the pressure in the system may drop.
• The plumbing system of suburban areas is created without the use of additional equipment. For the winter period, the water supply system can be completely dismantled, therefore, light and mobile models are selected.

The system with a storage tank is more complex in design. The tank is installed on the top of the structure, due to which the required pressure is naturally provided. The advantage of this type of household system is that in the event of a temporary loss of electricity, the required pressure will be maintained in the water supply system.

The disadvantages of the version with a water-pressure element include:

• The main condition is the presence of an attic. Therefore, not all cottages are suitable for the installation of this system.
• A large capacity is required, which, when fully filled, will put additional stress on the supporting elements.
• To reduce the likelihood of flooding the structure, high-quality waterproofing is carried out.
• A powerful system is created by installing a second pump. This significantly increases costs and makes it more complex, which reduces reliability.
• Automatic water supply is ensured by installing a hydraulic accumulator. It is chosen for buildings in which they live throughout the year.

The principle of the pumping station

The water pumping station can be purchased ready-made or be assembled independently from several components.Classic plumbing is represented by a combination of the following elements:

• Storage tank.
• Pump.
• Pressure control relay.
• Control unit.

Experts recommend purchasing ready-made systems that are suitable for installation in a suburban area. The main types of pumping equipment are as follows:

• Submersible. It is installed in a well, hidden under the water column. The version with a filter and a non-return valve is more practical in use, since the likelihood of impurities entering the water and a pressure drop due to backflow is reduced.
• Superficial. Such pumps are installed in a special room or on the ground near the well, they are easier to install.

The pump rating allows you to select the most suitable model for specific operating conditions.

The principle of the system is quite simple. If you correctly calculate and select the equipment, then an uninterrupted water supply is carried out as follows:

• If the pressure drops at the time of use of the consumer, the pressure drops, and the relay turns on the pump.
• Water rises from the well. The pressure can be monitored with a pressure gauge.
• At the moment of closing the tap or turning off the water consumer, the pressure increases, the relay is activated and the pumping equipment is turned off.

In the case of using a filling tank, the pump does not turn on for the first time after switching on the consumers. This reduces the number of on and off cycles, which will increase the operational life of the water supply system.

Choosing a model for specific characteristics

There are a variety of pumping equipment options on the market. Some are highly reliable, others are quiet. A large number of selection criteria are highlighted that must be taken into account.

Performance calculation rules

The most important metric is productivity. Its calculation is carried out taking into account the following parameters:

• The rate at which the amount of water is restored.
• System active operation mode.

The maximum capacity is considered to be a capacity of 800-1000 l / h. However, not every well is capable of recovering the amount of water at a similar rate.

Maximum water intake depth

A small well is easy to create, but it does not provide the required head in the system. When choosing pumping equipment, the maximum intake depth should be taken into account. It is determined by measuring the well.

You can measure the well by lowering the string with a load at the end. Experts recommend adding another 15% to the result obtained when measuring.

Accumulator tank volume

The storage tank can have a wide variety of volumes. With an increase in this indicator, the equipment takes up a lot of space, and also exerts strong pressure on the base. Recommendations for selection include the following:

• A capacity of up to 30 liters is sufficient for one resident. A small tank capacity is chosen when water is rarely required.
• A 50 liter tank is purchased and installed when the system is created in a house designed for a small family.
• The version with a volume of 100 liters is required in case of frequent use of water consumers.

Various sizes can be used in the manufacture of the tank, most often plastic and stainless steel.

Water pressure in the water supply system

The functionality of the water supply system is ensured only if the required water pressure is observed at each point of consumption. At the same time, each type of equipment has its own indicator.

The value of the created head is indicated in the instruction manual. The maximum indicator is 40-50 meters. They can be installed in a suburban area or in industrial premises.

Installation power and supply voltage

Such indicators are taken into account when considering how the equipment will be connected to the power system.The standard voltage is 220V, most of the models operate from a similar power supply network.

The high-performance and functional station can operate at a voltage of 380V. Such a power supply network in suburban areas is rare.

Design and functional features

Pumping equipment can vary significantly in functionality, size and appearance. When choosing, consider the following points:

• The pressure switch is connected using a flexible hose or directly to the body. At the same time, performance and other properties remain unchanged.
• Pumps may differ in design. Self-priming models are more often installed, which are designed to supply water with light impurities. This design creates a lot of noise.
• Some models are equipped with an ejector. This element increases the suction depth, but significantly reduces the efficiency and causes an increase in the noise level.
• The multi-stable structures are quiet, but they can operate at a well depth of up to 10 meters. They are much more expensive than other versions, but are characterized by increased efficiency. Quiet operation allows installation in close proximity to a residential building.
• Vortex pumps are suitable for suburban areas that have a well 6-7 meters deep. This design is low noise, high head and economical.

When choosing equipment, the popularity of the brand is also taken into account. Only large companies produce products that have a long service life.

Brief overview of popular models

When choosing, be sure to pay attention to the manufacturer, since the popularity of the brand largely determines the reliability of the manufactured product. Almost all companies specializing in the production of the equipment in question provide a range of different models to choose from. All models that are popular in the CIS countries are adapted for operation in harsh climatic conditions. The following models are most often installed:

Caliber SDV-850P. The device is suitable for raising water from a depth of no more than 8 meters. The volume of the tank is 20 liters, the power is 850 watts. The performance indicator is 60 l / min. In the manufacture of the case, plastic is used that does not react to environmental influences.

Patriot R 1200/24 ​​INOX. The main part of the structure is made of stainless steel. Productivity is 63 l / min, the volume of the tank is 24 liters. The unit can be operated outdoors even in high humidity due to the high-quality insulation of the electrical part.

Offers from foreign manufacturers are much more expensive. Therefore, many people pay attention to domestic brands.