Independent installation of a downhole pump

Drilling a well and installing a casing string is a complex process, and in most cases it cannot be completed without the use of heavy drilling equipment. Especially it concerns the development of artesian wells. Therefore, to perform these works, it is better to contact the employees of a company that specializes in providing such services.

But all further work on the arrangement of the well in the presence of elementary building skills and technical mindset can be done independently. Due to the high cost of installing a well pump, professional installation will help you save a significant amount of money.

Pump Installation Guide

In this article, the reader will be offered step-by-step instructions for self-installation of a submersible well pump.

In addition, here will be presented some tips and recommendations, the observance of which will help the home master to cope with this simple, but responsible work with his own hands, without resorting to paid services of qualified specialists.

Preparatory work

After drilling a well during the signing of the certificate of completion, the drilling company must give the owner a technical passport for the well.

It, as a rule, displays its main characteristics, such as:

1. depth from bottom to tip;
2. static and dynamic water levels;
3. well flow rate;
4. graphic image of a lithorection of the soil;
5. as well as the range of materials used.

Based on the data of the technical passport, you need to purchase and prepare the materials necessary to install the pump in the well and to ensure water supply to the surface:

• A stainless steel cable and clamps for fixing it must be designed for the weight of the entire system as a whole (pump, electrical cable, water filled pipe, fixing hardware) taking into account a tenfold overload. The length of the cable should be slightly greater than the full depth of the well.
• Electric cable with double vinyl insulation must be chosen in such a length that it remains solid without joints along its entire length from the pump to the control panel. The recommended cable cross-section and the number of wires is indicated in the instruction manual for the pump.
• Water pipe from the HDPE and connecting accessories to it must also be selected based on the recommendations of the manufacturer of the submersible pump.

   Tip! Before installing a well pump, it is necessary to perform idle pumping of the well for two days to clean it from sand and residues of drill cuttings using an inexpensive “Kid” type submersible pump. It is not recommended to pump using the main well pump.

Pump installation

With a small depth of the well, the pump on the cable can be lowered manually, but this method is less convenient and requires increased attention, utmost care and the participation of at least two people.

It is much more convenient and safer to maintain and install borehole pumps using a metal or wooden tripod, which is installed on the ground above the well head.

1. Before starting the descent, you need to finally make sure that the electrical connection and the tightness of the electrical connection are correct, check the operation of the check valve and the course of rotation of the working shaft, as well as the reliability of fixation of the carrying cable.
2. Measure out the estimated length of the cable and make a loop at its second end by installing two metal clips. At the top of the hole, install a snap-in carabiner for the cable.
3. As you lower, the power cable must be fixed to the standpipe using nylon cable ties or stainless steel clamps. In the place of fixation, the cable must be wrapped with a strip of rubber sheet a, tightening the clamp to ensure that the insulation is not damaged.

1. After some time on the way of the pump, the most difficult part of the well will meet: where the casing moves from a larger diameter to a smaller one. With the passage of this area should not rush, and smoothly turning the pump around its axis with a little pressure to push it down.
2. The optimum depth of installation of a submersible pump is considered to be its location a few meters below the dynamic water level, but no closer than 1-2 meters to its surface.
3. In order to avoid clogging of the pump and the check valve with sand, it is not allowed to lower the submersible pump at a distance of less than 1 meter to the bottom of the well.

   Tip! After installing and fixing the pump, it is necessary to make sure that the entire water-lifting system does not, by its weight, hang on the pressure pipe, but is suspended solely on the supporting cable.

Useful recommendations

For reliable operation of the water supply system, it is necessary to follow certain rules and requirements that apply to the installation and operation of submersible-type borehole pumps.

• Water is a working fluid and coolant for a submersible pump, so its operation without water is strictly prohibited.
• In order to avoid dry operation, it is necessary to install a liquid level sensor in the well that will turn off the power supply to the pump when the water level drops below the critical point.
• All metal elements of pumping equipment should be made of stainless steel. Its price is much higher than the cost of ferrous metal. However, firstly, stainless steel parts will not affect the composition and taste of water, and secondly, they will not collapse during oxidation, which, accordingly, will not lead to the cable breakage and loss of the well pump.

Conclusion

From the above article, we can conclude that almost any home craftsman is quite capable of self-installation of a submersible pump in a well on its own site. To do this, it is enough to observe accuracy and adhere to generally accepted rules and regulations.

Answers to additional questions can be obtained by watching the video in this article or by reading other materials on our website.