Recently, the number of wells in household plots has increased significantly. The point here is not only that the cost of drilling has decreased, but also because of the Internet drawings of drilling rigs have become available. Many are tempted by the fact that the water in the house will always be available, and this does not depend on malfunctions in the water supply networks.
Fault Prevention Methods
You can carry out the repair of submersible borehole pumps yourself, but in many cases this need can be avoided thanks to prevention. The device from time to time must be brought to the surface, even if this work will be accompanied by certain difficulties. This is especially true for those wells that are quite deep, and the equipment in them has an impressive weight.
After removing the unit, it is necessary to inspect the hanging cable and electric cable. The housing is checked for contamination, damage and corrosion. The pump does not start for long so that you can hear if the operation is accompanied by extraneous sounds that indicate a malfunction.
The main types and causes of malfunctions
In order to understand how to repair a borehole pump with your own hands, you must understand the main causes of malfunctions. In the process of using the unit, anything can happen. Most often, pumps fail due to the negligence of the owners. Therefore, it is recommended that you read the instruction manual.
The vast majority of users aggregates fall into the well and do not get until they fail. This can be avoided by lifting the pump to the surface at least once a year. But a breakdown can occur with the most responsible attitude to equipment. This is due to the dry running of the pump.
If you suspend it too high, then the mechanism will work for wear, because it must be cooled. Sometimes such consequences are also caused by intensive water supply, when the water level in the well drops very much. In this case, the equipment overheats and sticks, sometimes the plastic parts are melted.
Repair of the downhole pump may also be necessary if you are using a very powerful device. The water intake is quite intense, which contributes to the absorption of sand, damaging the pumping part, which is the impeller.
If power surges and fluctuations are quite frequent, then this can render the capacitor and other electrical components unusable. To prevent this situation, it is necessary to use voltage stabilizers. The cause of the breakdown can also be the wear of the nodes.
Additional causes of malfunctions
Repair of the borehole pump may also be required if the non-return valve and accumulator, which, although not included in the system, are not working properly. In this case, the device will not be protected from pressure drops and will receive a water hammer.
It also happens that the impeller is damaged by erosion, this also applies to shafts, as well as other moving parts. Quite often, the capacitor and winding fail. It is also important to ensure that the system does not become clogged with silt and sand.
Repair Features
If you started a downhole pump repair, then first you need to figure out the cause of the problem. To do this, you need a minimal set of bench tools. Before starting work, you must turn on the pump in the network and listen if there are any sounds that indicate incorrect operation. If you heard complete silence, then a magneto failure that cannot be repaired may indicate this. In this case, the equipment should be disposed of.
If the repair is still planned to be carried out, it is necessary to remove the lower part of the housing. The engine in these pumps is single-phase, it has two windings - working and starting. In the starting circuit there is a capacitor, the capacitance of which can reach 40 microfarads. First of all, it is necessary to check the blades and shaft, as well as the impellers, which should rotate freely and not be damaged.
When the shaft is jammed, this indicates that the stator winding has burned out. It must be completely replaced, although some models do not provide for this, and the pump is disposed of. If nothing is damaged, then the lower part can be assembled in the reverse order.
Repair of a downhole pump involves disassembly. Before this, it is necessary to place the housing vertically and fix it, otherwise oil will leak from the engine. Under the cover you can see the capacitor and wires. Using a tester, measure the resistance of the starting and working windings. If the device shows infinity on any of them, it means that there is a break in it. Small values indicate that the winding wires close together. If all data is normal, then check the capacitor. When the reason is in him, they change him.
Repair of the Whirlwind pump
If you have equipment of the Vikhr brand, it is important to remember that when assembling it after the completion of maintenance, you need to make sure that all gaskets are located correctly and that their integrity is not broken. This requirement is due to the fact that the device will be located in water.
How to avoid repairs
If during operation of the unit you hear extraneous noise, and the operation is accompanied by interruptions, it is important to provide protection against dry running. Do lubrication on time, without this erosion may occur in the working parts, at the wheels or screws. If an impact occurs, the check valve may fail. Sometimes it needs to be replaced.
Repair of the borehole pump "Vortex SN 90V" may also be required if the membrane accumulator fails. You can find out about this by faults in the wiring. Periodically while the device is in operation, you should check the pump hose. It is important that the equipment model mentioned matches the required power. Sometimes this parameter exceeds the required value.
Should I buy a powerful pump
There is an opinion that with an increase in power, the water supply increases. In fact, this is not entirely true. Increased power entails an increased amount of absorbed sand, which can lead to premature failure of the impeller.
Repair of the Vikhr borehole pump may be required rather quickly after installation, if the technical characteristics of the equipment do not correspond to the parameters of the well. If the performance of the device is higher than required, then additional installation of equipment is required, which is responsible for reducing the intensity of the pumped water.
Finally
In order that repair of pumping equipment is not required ahead of time, before purchasing such a device, it is necessary to determine the intensity with which the unit will be operated. This takes into account the amount of water consumed.
Do not chase the cheapness of the model. Practice shows that such devices are much less expensive. A pump is a long-term investment, and dismantling, replacing and repairing are expensive procedures. Although it is possible to carry out the repair of the Whirlwind borehole pump with your own hands, this is best avoided. This can be done by periodically removing the device to the surface to check its operability and serviceability.