How to choose a pump for the well: the calculation of the parameters and types of units

How to choose a pump for the well: the calculation of the parameters and types of units

The houses in the country have a central water supplyalmost unreal. Typically, this function takes over the well or well drilled by the owners. In any case it is necessary to break a head, how to raise the water from the mine. With a well fewer problems: abandoned bucket and stretched! But with a well this will not work. In its structure the bucket just will not fit. The only option is the installation of the water pump. But they differ on the principle of action. It is advisable, before selecting a pump for the well, to study their variety and peculiarities of work, as well as the characteristics of the casing, for which pick up the equipment. Some nuances like these, today we'll talk.


What is important to know when choosing a pump?

There are several parameters influencing the selection of a particular model for a well pump. And we need all of the parameters to analyze as accurately as possible.

Daily water consumption

Before you start to pick up the pump, it is necessarycalculate how much do you spend per day of water. From this power unit and its performance will depend. If your small family (3-4 people), and there is big garden, you can stay on the machine, which produces 60-70 liters per minute. If in the area a lot of flower beds and beds that require frequent watering, it is necessary to choose more powerful pump.

The exact source of the depth

Studying in store pump models, pleaseattention to the product data sheet. It always indicates how deep this model is designed. - Your task is to correlate this information with data of its wells. If you do not specifically remember the size, you can do so:

  • Hang on a thin rope or twine load (preferably iron);
  • Lower it into the shaft hole, until you hit the bottom;
  • Remove and measure wet and dry part of the twine. Wet tell what the water column in the well, and dry - the distance to the surface of the water from the beginning;
  • Adding these two values ​​will get the total size of the hole.

The rate of filling water wells (debit)

Ideal calculate borehole debit is not possible,because the spring water flow will be faster in the winter - slowly. But you can do approximate figures. Calculate them easily: it is necessary to ask friends or neighbors in the divisions of the pump and run it at work, at its source.

What to consider:

  1. Pinpoint the time during which the entire pump out water;
  2. You notice how many hours the well is completely filled;
  3. Share time to time №2 №1 - gets about debit.

One may ask, how do you know that the wellfilled completely. Elementary! Periodically dropping the same sinker, which you measured the height of the column. Once the readings coincide with those that you have received in determining the size of the mine - well filled.

The diameter of the casing

If the well is still planned, it is bettermake it a four. a great many are sold to structures with a diameter of pumps can not be said about the three-inch. They drilled less, and therefore the equipment for their produce little.

The diameter of the hole

Measure the diameter of the casing can be a tape construction, and then move in centimeters inches (1 inch equals approximately 2.54 cm)

The diameter of the finished hole is easy to measure (in inches and then to translate to inches), or contact with the workers, you burivshimi design.

The quality of the drilled hole

If you drilled construction or are not sure themselves inprofessionalism drillers, look for pumps, designed specifically for the borehole. Universal units, of course, less expensive, but they are less effective. The fact that non-professional or long-used sources are often washed out sand and it will interfere with the work of art. You have to frequently clean the pump, and its service life will be reduced. If the unit was created specifically for wells, he blockages in the fluid is not so terrible.

Well your hands

If the well was drilled by amateurs, it can wash out the sand. Therefore it is better to buy special pumps for wells started it, not universal

Pick up the unit on the specifics of the work

When all of the above analyzes can bebegin to familiarize with the types of pumps. Based on the characteristics of the work, all the systems are divided into 2 groups: surface and submersible (otherwise - deep). Consider their differences.

Surface pumps

This type of equipment installed on the ground, withoutdive. The pump pumps fluid via suction. The deeper the water column, the more difficult to raise the liquid, the more powerful the system is selected. Surface pumps are recommended to buy for wells in which the distance to the start of the water column is not more than 8 meters. Do not buy for pumping water rubber hose. It is when the equipment starts to compress the walls of the thin air, and do not miss the water. It is better to replace it with a small diameter tube. The main plus of the surface of the pump: easy to install, dismantle.

Surface pump

Surface pump can be installed right next to the well, and to reduce its growl, you can make a box made of wood and hide there equipment

Submersible units

If you have a deep well, the version with a surface pump will not work. We'll have to search among the submersible units.

The technique is immersed directly into the pipe in the water column. The system works on the principle of liquid ejection. Determine what is needed for your well pump for borehole size. More precisely - it is necessary to calculate, how high the unit will have to push the water jet. To do this, remember the measurements that you performed earlier. The length of the dry rope with small weight - this is the height to which the pump will have to raise the water. Add it to 3-4 m., Because the pump is immersed for a few meters deeper than the beginning of the water, and you will get the final figure. If it does not exceed 40 meters, so you can buy a simple, low-power pumps. Look in the passport information of the utmost depth at which a system can operate.

Submersible pump

Learn more powerful submersible pumps easy: their appearance is larger than the low-power "brothers", and they are heavier in weight

By the way, if your calculations on lifting heightthe water is 60 meters, and to pump this depth - the maximum, then this model is better not to take. Technology will operate at the limit of their strength, because with every meter in depth performance is lowered, and the load is increasing. Look for pumps, designed for 70 meters depth. This will help the equipment to operate without unnecessary stress and better preserved.

Tip! Take the model with automatic. If the engine overheats (from long time operation or contamination of water) or deflate all the liquid, the pump switches off itself. Otherwise - the motor will burn just as long as you find the problem.

Of the two types of deep-well pumps (centrifugal and vibration) is better to stop on the first. Vibratory too sensitive to the dirty water, and in the process destroy the borehole wall.

Centrifugal pump

Centrifugal pump blades captures water instead membrane fluctuation as a vibrating, so it is hanging motionless and does not destroy the borehole wall

The pump is chosen for a long time, so look formodels produced by known, reputable manufacturers. Then you will be easier to find a service center for repair and maintenance of your system.

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