Which submersible pump is better to choose for a well

It is not always possible to install a surface pumping station for a well, since the depth of the source can exceed 8 meters, and this is the maximum distance the station raises water. In this case, submersible equipment will come to the rescue - pumps that are capable of pumping liquid from 30 meters or more. There are many types of units, so first you need to choose a device according to the type of work, and then according to the technical characteristics. You can install submersible equipment yourself if you have instructions and a standard set of tools.

Application of submersible pumps for wells

If surface devices for water intake need to protect the case, then with submersible models everything is much easier. They are waterproof and in a liquid when in use. Their body is made of durable material - aluminum, stainless steel, and is also equipped with additional protective functions against water ingress.

Submersible pumps are used in many areas:

• pumping drinking fluid from a well or removing groundwater;
• extraction of mineral water on an industrial scale;
• work in deep artesian wells;
• watering the garden, including drip systems;
• work of fountain installations;
• additional pressure increase;
• pumping sea water - in this case, especially resistant materials are used that can withstand salty liquid;
• mining of minerals;
• sewage pumping - units with a cutting mechanism are used.

In households, hand pumps are sometimes found that do not depend on electricity. Pumping is carried out using a "wing" located on the surface.

Types of pumps, device, principle of operation

There are sucker rod and rodless models of submersible pumps. The rod serves to transfer thrust to the suction device inside the housing, since its electrical part - the motor - is located on the surface, the intake part of the structure is in a liquid medium. In rodless units, the motor and the suction mechanism are located in the same housing and are immersed in water.

By type, pumps are distinguished:

• centrifugal;
• vortex;
• screw;
• vibrating.

Centrifugal pump

The principle of operation of the centrifugal device is to rotate the shaft on which the blades are fixed. The shaft is driven by an electric motor. Under the action of centrifugal force, the liquid falls on the walls of the housing and is then pushed upward. At this time, an area of ​​low pressure is created in the center, which draws in a new portion of water.

The weak point of a centrifugal pump is the impeller. If there is no coarse filter on the suction pipe, the blades are damaged by large inclusions - stones, sand. Of the disadvantages of this type of pump, only their high cost can be called, especially if the units are made of high-quality materials. During operation, it is necessary to control the distance to the water mirror.

Advantages of centrifugal water lifting devices:

• ease of installation and connection;
• noiseless operation;
• the ability to select a power unit;
• household appliances are capable of reaching liquid from a depth of up to 40 m, industrial models - up to 1000 m;
• can be selected for the narrowest casing - up to 10 cm in diameter.

When selecting equipment, it is advisable to calculate the power with a margin. For example, if the instructions indicate that the unit raises liquid from 40 m, the well should be no deeper than 30 m.

Vortex pump type

Vortex pumps are suitable for summer cottages, since they are not designed for deep wells and are not powerful enough to provide water to a private house. The principle of operation is mixing the liquid with air at the bottom and lifting it with the help of a piston. Such equipment does not consume a lot of electricity, but it also does not develop high power.

The pump is inexpensive, its dimensions are small. Suitable for wells and shallow wells.

Vibration equipment

The principle of operation of a vibration pump is similar to a vortex pump. The rise of the liquid is carried out thanks to the presence of a rubber membrane. The size of the water column is 6 - 7 meters, so the equipment is not suitable for deep springs.

During operation, the walls of the well can be damaged due to constant vibration, therefore, rubber rings are put on the body.

The advantage of vibration equipment is its low price and small body size.

Screw pumps

The principle of water lifting is to move it along the grooves along the axis. This creates a closed space that prevents the reverse flow of the liquid. Such units are not afraid of solid inclusions, provide a uniform water supply, and do not make noise during operation.

Overheating due to lack of cooling can cause damage to the pump, therefore it is imperative to equip it with a dry-running sensor. The same applies to the rest of the submersible units - they are cooled using the liquid in which they work.

If you have to choose - to buy a screw or centrifugal pump for a well - you need to focus on the depth of the source.

Criterias of choice

A submersible pump is required if the well depth is more than 8 meters. Surface models, with all the positive moments, will not cope with the task. Considering that a power reserve is needed for correct operation, the surface pumping station will work for wear and tear - it will not be able to develop the required pressure and the motor will simply burn out from overheating.

When choosing equipment, take into account:

• Well productivity. If water is collected for a long time after pumping out, you cannot buy a too powerful unit, since the liquid level will not have time to cover the body.
• The family's water needs.
• Availability of protection sensors. In summer, due to heat or for other reasons, the liquid can go into the lower layers of the soil and the device will run idle, which will lead to breakdown. With frequent voltage drops, you need to choose a pump with protection.
• Matching the pump type to the source. Vibration or vortex units are not recommended to be lowered into the well, so as not to cause destruction of the walls. They are more suitable for wells.
• What kind of liquid will have to be pumped. For domestic waste water, it is better to buy special equipment with the ability to crush large particles - fecal pumps. For dirty water, a vortex or screw device is suitable. The centrifugal pump is only suitable for very clean liquids.

For long-term use, it is not recommended to buy cheap devices, since their repair is sometimes impossible due to their technical characteristics. To evaluate the unit, you need to read reviews about choosing a submersible pump for a well, it is advisable to compare the opinions of buyers on several sites.

Rating of the best

Both imported and domestic manufacturers have good models. In any case, high-quality equipment will not be cheap. Some differences in design are possible - imported ones are good in everything, but you need to remember that the unit will work deep in the well, therefore, the beauty of the body is not the main thing.

Of domestic models, they have proven themselves well:

• Blamos Typhoon. High performance equipment. It is used in water supply systems of a private house.
• Gilex.An economical device with a submersion depth of up to 80 m.
• Vortex. It pumps water from a depth of up to 100 m and is energy efficient.

From foreign models:

• Grundfos. Leader in the production of pumping equipment of any type. The brand is distinguished by the quality of materials and workmanship.
• Unipump. Can be used in wells with sand. A powerful device that will fully satisfy the needs of a private house and surrounding areas.
• Vilo. The high price of deep well pumps is justified by the long service life without the need to replace parts.

Among Chinese goods, there is also good equipment, but it will not be cheap, since expensive materials and components are used in the production.

Submersible pump cost

You need to save money on buying a pump wisely. When choosing a centrifugal unit, you need to know the degree of cleanliness of the well. If there is no sand and stones in the water, you can buy a model with an impeller made of durable plastic. Such a pump will cost less. Otherwise, it will have to be repaired frequently.

The price of the device is influenced by its performance, brand and availability of additional functions.

Owner reviews

Andrey, 37 years old. Having read what good products are produced in Belarus, I decided to buy Belamos. I have never regretted it for 7 years: it is not afraid of sand, although we catch it from the tap, the details have not been changed even once. After 5 years of operation, I did not believe that for such a low price the device worked for so long, they took it out with a master, cleaned it and put it back down. I recommend Belarus and its pumps.

Valentine, 44 years old. Aquarius has been working at our dacha for 10 years. Cope and pump water into the house, and the garden. There was a breakdown once, and then - it was necessary to clean it of lime. Our water is harsh. After cleaning, it worked itself. Either lucky, or really good brand.

Igor, 29 years old. I am writing so that other buyers do not fall for the bait of sellers in the supermarket. We bought the pump 2 years ago. The manager said that the model is new, there are spare parts. It was a centrifugal impeller pump. They believed, did not guess to find out in the service. Our water seems to be clean, but hard - the impeller worked out after a couple of years - the blades were worn out, they began to look for a replacement part, and this one has not been released for 5 years. I had to buy a new one. They threw away money in vain.