Which water pump to choose for a well

When the people had just begun to build houses and outbuildings in their dachas, everyone was happy to dig in the ground and work in the garden. But now no one is seduced by manual watering of tomatoes and cabbage. I would like to have a constant source of water in my personal plot. That is why pumps for wells are popular and in demand among owners of summer cottages, country cottages and rural real estate.

Pumps for wells are divided into several fundamentally different models and types, depending on the tasks assigned to them. To make sure you make the right choice, you need to decide on the following points:

• Power;
• Pressure and pressure that are needed on the site and in the house;
• Depth of well water;
• Water intake will be carried out continuously or periodically;
• How clean will the water be?
• A price that is not a pity to pay for your comfort and water supply.

Water well pumps for a well are of two types. The former work on the surface, the latter must be buried in the water. Both have advantages and disadvantages, so it is extremely important to clearly formulate the scope of tasks for them.

Surface pumps

Manual

The simplest type of surface pump is. It is driven by human muscle power. Such a unit will not be superfluous if there are problems with electricity. Thanks to the check valve, it is possible to lift water from a depth of 8 meters. The price of individual copies does not exceed fifty dollars. Moreover, they can be an excellent element of garden decor if they have artistic forging and a harmonious appearance.

Surface electric pump

If you plan to raise water from a well where the water surface is no deeper than 8-10 meters, then surface pumps are ideal. cheaper than other types. For example, "Whirlwind" will cost four thousand rubles, which is not very expensive for your own water supply in the country.

Installation of a surface pump does not require special qualifications. They are sold with filters, sensors and float stops already installed. You connect the unit to the suction and pressure pipelines, pour water into the suction pipes, connect it to the mains and you can enjoy the murmur of life-giving moisture!

Almost all surface pumps have a non-return valve at the end of the suction pipe, which eliminates the need for filling water before each start-up. Multi-stage models with an ejector are capable of lifting water from more than ten meters deep, but it is much more profitable to purchase a submersible pump for these purposes. surface pumps for watering a vegetable garden from a barrel are described in detail.

Submersible

These models are designed to raise water from wells and boreholes, where the water mirror is more than 9 m from the upper soil level. They look like a cylinder that is lowered into the well shaft on special cables. They work either at the very bottom, or on a hill from it, so as not to suck in silt, sand and bottom sediments. Their cost varies from 5 to 15 thousand rubles, depending on the type, power, immersion depth, pressure and auxiliary elements.

For example, a submersible pump with a flow rate of 4.3 m 3 / h, a power of 1 kW, a head of up to 40 m, will cost 9,500 rubles. A more serious model, designed to lift water from a depth of 100 m, will cost 17,000 rubles.

Submersible pumps are divided according to the principle of operation into vibration and centrifugal.

Vibrating models have vibrating parts as a working body. The rod moves quickly in the chamber, due to which water is drawn in through the check valve and pushed out. They are economical and inexpensive. But they also have a number of disadvantages, such as high noise levels, vibration, and even the prospect of well destruction if it has a small diameter. Also, these pumps must be turned off periodically, about once an hour for ten minutes.

Centrifugal submersible pump

Deep

It is used when the depth of the well is more than 20 meters. Cooling of working bodies and electrical equipment occurs due to water moving upwards. Therefore, they do not have cooling jackets and radiators. The diameter of the deep pump is 100-125 mm. This is its main difference from a submersible pump for a well.

Recently, water cannon pumps have gained popularity. They have several stages and "floating" impellers. The diffuser channels of such a pump are not clogged with debris and therefore last longer than analogues. The support bearings are made of ceramic, further increasing their service life. However, judging by the reviews, they often melt the bearing sleeve, which causes oil contamination of the well.

Abyssinian well

The needle well, or Abyssinian well, is the easiest way to get to the aquifer. Its main advantages are that it does not need bulky equipment and a large area for installation work on drilling a well and installing a pump. Roughly speaking, a thick-walled pipe is driven into the ground, through which water will then be supplied. A hand pump is mounted on top, which will supply the purest spring water, not contaminated with impurities and solid particles. You can install an Abyssinian well even in the house, because it does not require large areas for it.

Also, sometimes you can find proposals to install an electric pump in the Abyssinian well. But this work can no longer be done on your own, it must be entrusted to specialists. If the water surface is not lower than 7 meters, then a surface pump is sufficient. If it is deeper, then you will have to drill a thicker well to install a submersible pump.

In the picture - features of the installation of wells and wells

float switches

A pump with an upper water intake must be protected from lowering its level below the suction valve. In rapidly depleted wells, this can happen if the power of the unit is incorrectly calculated. A float switch shuts off the motor when the water level drops to a dangerous level. Most submersible pumps with a suction port located at the top are equipped with float switches.

On the video - some tips on how to choose a pump:

Prices

Both surface and submersible pumps are rarely sold separately. They are an integral part of pumping stations, which, in addition to them, include valves, pipelines, float switches, automation, well heads and other protective devices.

A pumping station with a fully equipped surface pump will cost from 5 to 15 thousand rubles.

A submersible pumping station can reach up to 50 thousand rubles. Not counting the cost of drilling a well and decorating the landscape in this place.

If you purchase the pump and automation separately, then do not forget about the need to control the water level in the well, the mains voltage, the temperature of the unit and other important points.

If your site does not have deep water, then a surface pump will do an excellent job of delivering it to the surface. In the case when the mirror is 10 or more meters away from the soil level, a submersible and deep pump are the most acceptable option. Also, we must not forget about the correct calculation of power, so as not to pump out all the water from the well. You might also be interested.