How to remove a pump from a well. How to remove pumps from wells yourself? Presence of solids in the casing

Let's now try to figure out together how to pull the pump out of the well and whether it needs to be done at all in cases where it has stopped functioning. Perhaps the reason for stopping the water supply is not in it at all, but in the electrical cable or process automation system.

In order to understand this, you need to clearly understand the source device and connection diagram, which will now be discussed and, in addition, you can watch the thematic video in this article as additional material for clarification.

Construction and repair of the water supply system

Some possible reasons for stopping

Note. A borehole primarily differs from a water well in its small diameter and, in almost all cases, greater depth.
Drilling can be carried out “on sand”, or to the aquiferous artesian layer, which is much deeper.

If your pump does not pump water from the well, this does not mean that it is out of order and needs to be replaced, so let’s take it in order. First of all, you should take into account the factor of what kind of well you have - “sand” or artesian, since in the first case the filtration layer may become heavily silted and the pump may not be able to cope with the thick liquid.

One more possible reason If the pump in the well is not working, there may be problems in the terminal box at the head of the well, if the cable was connected through it (there could be a splice using a heat-shrink sleeve, but practically no problems arise there). In any case, the electrical cable will be short and will have to be extended, and the instructions suggest doing this through terminals like these, although this is not the best option.

Before you pull the pump out of the well, you should also pay attention to the pressure switch, as the unit may not start due to the fact that the minimum starting limit is missing. There may be several reasons: settings failure, oxidation of contacts, or complete failure of the sensor. In addition, you need to determine whether voltage is supplied to the electrical cable at all (this can be done with an ampere-volt meter (tester)).

Only after checking all these components and factors can the unit be pulled out of the well. Please note that this will have to be done together with the main pipe, so this work requires at least two people.

We take the pump out of the well
The question of how to hang a pump in a well is identical to the question of how to remove it, since both installation and dismantling are carried out according to the same scheme. The main fastener for the unit is a steel cable, one end of which is attached to the eye on the body, as shown in the photo above, and the other to the well head.
In the diagram you see the structural components of the well cap and, although its cover may not have a round, but an elongated shape (the cable entry may extend to the side), everything else remains the same. So, the steel cable is attached to the eye bolt and, in the same way as on the pump body, is clamped with special clamps (the clamp for the cable is made taking into account its diameter).
Note. In most cases, an electric cable is attached to the steel cable using clamps or ordinary copper or aluminum wire, so you will pull them together.

Related articles:
We have figured out the cable and now we need to find out how the water intake is carried out - through a caisson (pit) or an adapter, since this will radically change the method of dismantling the unit from the well.
If the main line is routed through a caisson, then in 99% of cases it is polyethylene pipe 32 mm diameter. And the first thing you need to do is cut this hose in the pit, stepping back 15-20 cm from the casing.
After this, you need to insert the protruding pipe into the service pipe and only then lift the pump itself using a cable, pulling it up.
To do this, unscrew the cover, but do not remove the cable from the eye bolt - if it slips out when you lift it up with your own hands, it will still stay on this fastener, so you will not encounter force majeure circumstances.
But if the main pipe for water intake is connected via an adapter, then you cannot do without a rod with an external thread at one end. The fact is that the adapter consists of two parts, where one is tightly attached to the service pipe, and the other to the pipe that connects it to the submersible pump.
These two elements are connected to each other by a sled connection - the clutch is quite tight, especially since there is always a special waterproof lubricant.
On the top of the adapter part, which is attached to the pipe, there is a special hole with internal thread for fixing the rod. Therefore, you will have to find the necessary rod (a metal pipe, but you can cut the required thread yourself) and, lowering it into the well, screw it to this hole.
Once you get onto the threads and screw the rod, try to pull the whole thing up, just don't wobble it so you don't damage the threads or the adapter itself.
Most likely, the adapter will not disconnect the first time, since it is quite difficult to remove the pump from the well - the salts contained in the water clog the connection, and it needs to be moved from its place.
Therefore, you will have to make several strong upward movements to disconnect the adapter, and perhaps even use some kind of homemade winch or jack to do this.
Recommendation. If you cannot disconnect the adapter, then use two ordinary car jacks for help.
To do this, you will need a crossbar with a clamp that will grip the barbell and two T-shaped supports under it.
Place jacks under these supports or instead of them and lift them gradually to avoid severe distortion - the adapter will definitely disconnect.

Most likely, those who were involved in the installation knew which pump to install in the well and its diameter was several centimeters smaller than the cross-section of the pipe. Therefore, the lifting should occur without complications, except that in the first case the pipe will rub against the production pipe.

Conclusion
In conclusion, I would like to remind you once again that you do not rush to take out the submersible pump when it stops, but first make sure that the other components are working. Still, the price of such a unit is not a penny, and the labor costs associated with its dismantling are also considerable. Good luck!

During operation of a source, it often becomes necessary to remove pumping equipment from the casing shaft. However, when carrying out this procedure, they often encounter a problem: the pump gets stuck in the well.

deposits in the mine;
sagging power cable;
siltation of the bottom of the source;
reverse siltation;
obstacles, debris;
deformation of the casing;
pump misalignment;
caught on the pipe joints.

Deposits in the well. The reason is the soil in which the casing is installed. Limestone rocks interact with the metal body of the device plus oxygen to produce a durable stone coating. Deposits can form both on the device itself and on the walls of the pipe where the equipment is located. If, when lifting the device by the cable, there is no movement either up or down, and the cable and cable do not move when tensioned, this is a sure sign that there are salt deposits in the shaft.
Slack cable. The pump is held suspended in the pipe using a cable and a reliable bolt connection. In addition, a hose or pipe and a power cable are connected to the device. Often, when pulling the device by the cable, we forget to pull out the cable in parallel, and after a few meters it sags and wraps around the pump body. This can happen if the power cable was not attached to the rope when the equipment was first submerged. special clamps. It sagged during the operation of the well and was wound around the device due to vibration. If, when you try to pull the device by the cable, it goes tight and constantly gets stuck, the reason is the sagging cable.
Silting of the well bottom. After drilling and installation, the casing pump is lowered too deep. Equipment almost always gets stuck in sludge. In the pipe there is a natural process of formation of sludge at the bottom. In the first years of water consumption, the problem of siltation will not be identified, because it comes in clean and soil has not yet accumulated at the bottom. After prolonged use, the water from the device may contain an admixture of liquid clay and change its color. This is a sure sign that he drowned in the mud.
Reverse siltation. In addition to the accumulation of sludge at the bottom of the source, there is the problem of complete blocking of the device body inside the casing pipe with sludge. This happens due to displacement of the seams at the joints, or due to improper installation of the casing pipe. It also occurs in a mine on sandy soil, since sand and eroded soil enter the holes above the pump along with water. Gradually, the silt covers it completely and envelops it, preventing it from being pulled to the surface. If the cable, when taut, moves little by little, then up and then down, it means that the pump is stuck in silt, and reverse silting has occurred in the well.
There was garbage. There is little space in the water well; pumping equipment barely fits into it; however, during use, debris or foreign objects may get into the well for some reason. It is not always possible to keep track of the pipes. Children throw stones and toys; small animals and birds are found in the pipe (although this rarely happens). Foreign objects make it difficult to remove the pump from the well. Debris that gets into the barrel falls to the very bottom and rests against the pump. A clear sign If a foreign object gets into the shaft, there will be a characteristic rustling and grinding sound when trying to pull the cable.
Deformation of the casing. Incorrect installation, dishonest attitude towards work leads to problems in the wellbore. Deep aquifers are assembled screw connection or using the tongue and groove method. There is therefore a risk of detachment at the joints. This happens due to the negligence of workers, or due to the characteristics of the soil. The pipes move away from each other and become askew. A shelf is formed in the trunk, and accordingly, the channel narrows. Characteristic sign casing deformation - knocking and sudden stop during lifting.
Pump misalignment. The decision to remove the device from the mine shaft has been made, and it’s time to start pulling it out. But after several movements in the upward direction, it gets stuck and does not move, which means there is a misalignment. The reason is a rope or cable that, during lifting, got caught on the bottom of the equipment or a side connection, as a result of which the equipment became a wedge.
The device got caught on the pipe joints. During the lifting process, it may have hit a butt joint. Determining the cause is quite simple. The average length of a metal pipe is 6-8 meters, polyethylene – 4-6 meters. You need to measure the appropriate length on the cable; when you pull it out, it will become clear what the depth is and which seam the pump rests on.

Several ways to remove the device

Salt and limestone deposits

Pull the cable several times without using maximum force, gradually moving the cable up and down, like a fishing rod. If this does not help, there is another way - to break up the deposits with a pneumatic blow. Quite an expensive method, but with positive characteristics. You will need a powerful compressor and a long tube with a diameter of 15 mm. It is lowered to the level of the unit and connected to the compressor. Then they shoot a stream of air into the equipment body or along the pipe wall. The shot should break the coating and release the device.

Cable slack

Cables are different. They are selected depending on the power of the unit. Stronger devices require a rigid, reinforced cable. If it sags, it will not wrap around the body, but will simply warp the device, which will make it impossible to lift it to the surface. It will be enough to pull out the cable along with the cable and hose. If the cable does wind up around the pump body, it thickens it. In this case, you need to bring it down and also move it by the cable, like a fishing rod. The cable will gradually unwind and allow the pump to continue moving.

Silting of the bottom

When silt and dirt form at the bottom of the well, the apparatus is pulled out by gradually swinging from side to side by the rope and hose. However, if the depth is large enough, the length of the cable will not allow the device to be swung to the required extent. To remove a stuck unit, you need to dilute the sludge with plenty of water. Preferably under good pressure. An additional source of water and equipment to supply it to the mine shaft will be required. It is advisable to lower the tube to the very bottom and use a pump to pump water into the well under pressure. Simultaneously with the supply of liquid, the cable must be pulled up, creating tension in the ground lock. After a few minutes the equipment should be free. But don’t rush to pull it up right away. To rinse the sludge a little, the pump must be dipped into water several times without stopping its supply.

Reverse siltation

In this case, the apparatus is completely blocked in the ground, and often a soil cap is formed above it; more more water. Simply swinging and pulling out the device will no longer work. Otherwise, the cable will break and it will be more difficult to get it out. To dilute the sludge, you need to lower a tube with a diameter of 15-25 mm into it, and then use another pump to pump water down from the surface, and the more water, the better. Now the stuck unit can be safely pulled out.

Important: a fire truck is sometimes used to pressurize a well. This is expensive, so before pulling out the pump in this way, it is necessary to calculate the cost-effectiveness of the procedure compared to the cost of the device.

Garbage got in

A foreign object in the barrel is one of the few reasons not to take any action to remove a stuck device. If, after walking a few meters, the pump stops with a characteristic shuffling or knocking sound, you can try to pull it out along with the object. Of course, the garbage itself is not visible, which means one can only guess what is there. Up and down movements can loosen it and move it. If it doesn't work out, you'll have to leave the pump inside.

Casing pipe deformation

In this case, the diameter of the mine shaft narrows. When moving upward, the device rests on a bulge in the pipe. Any work to remove the pump must be done blindly, but there is an excellent method that is suitable if the column is deformed.

You need to make a special pencil case with your own hands; a mini-video camera is placed in it, pointing down. The camera must be in a waterproof case. A flashlight, also waterproof, is tied to it. The diameter of the pencil case with the camera should be 1.5 times smaller. The pencil case is tied to a rope and lowered into the well. The camera clearly shows the place of narrowing and the possibility of moving the device further.

Skew and snagging on joints in the pipe

This happens quite often. If the pump is stuck in a wedge, it needs to be rocked. We pull the cable with one hand, and the hose or cable with the other, in turn. Moreover, they should not be pulled too hard or sharply, as they may come off. Movements such as swings will loosen the equipment and bring it into the desired vertical position.

The same applies to the case of the pump catching on the joints. Almost similar movements help to swing the pump and release it. You can lower the device half a meter lower and try to raise it again, moving the rope or cable along the walls of the entire circumference of the pipe.

Jamming on the rise

If the device stands across the pipe, and when the cable is loosened, it sags and does not feel tension, you will have to resort to another method.

You will need a long pole or tube with a diameter of 15 - 20 mm. Can be used propylene pipe. It bends and will easily fit into the mine shaft. Having placed the rod inside, you need to try to push the pump down, while loosening the cable and cable so as not to tear them. A small spatula is attached to the end of the rod. Having lowered the device, the device is lifted up, pushing from below.

In sand and limestone wells

In the first case, silting occurs in the pump and the bottom of the pipe. Especially if water is rarely used and the well has stood idle for several months. It is clear that it is difficult to remove the unit from wet sand. But there is a way. In order for water to penetrate between the pump wall and the ground, it must be gradually, not jerkily, pulled up, and then the cable must be loosened for a short time. Then do everything again, this can take a lot of time. It all depends on how thick the layer of sand has formed around the device. So, a few centimeters at a time, the device is gradually removed from the sandy captivity.

Important: You should not try to wash away the sand with water pressure, this will only lead to compaction.

In the second case, the situation is similar with sand. Lime deposits interact with oxygen and metal, forming stone walls. To free the apparatus from reverse siltation, you must not try to pump in water or mechanically break the stone. This may damage the equipment. It must be turned on when swinging. The vibration from the unit will help it release faster.

How to get the unit if the cable breaks

This is a problem in which owners abandon equipment right in the trunk and lower new ones there. Of course, this can be done if the unit fell to the bottom and sank. And the depth of the mine allows water intake to be higher than before.

When the break occurs above the water level, the unit will still have to be removed. Need to do it yourself special device. By analogy with a mixer or a kitchen whisk, we twist a spiral from the fittings with a sharp end slightly larger than the pump itself. We lower it into the well and weld the rod, immerse it again and attach another rod. So all the way to the bottom. The armature is needed to twist the spiral and grip the device. If the device fails to hook, after rotational movements the rest of the cable will twist onto the trap and the pump will rise.

Important: To avoid problems with cable breakage, from the very beginning it is selected with a sufficient margin of safety. A safety bolt is installed in the coupling with the unit.

What not to do

Pull forcefully on the hose or cable. They can come off.
Continue operation pumping equipment. This will make the situation worse.
Start lifting the pump without finding out the reason why it is stuck.
Work with the power cable connected to the pump connected to the socket.

When installing pumping equipment, you need to choose a very strong cable. It's better if it is stainless metal, covered with silicone braid. Locking rings with bolts are attached to the ends of the cable.
The well must be flushed and cleaned every two or three years of use.
If water is not used, the equipment must be pulled out of the mine shaft.
The pumping device is selected according to technical specifications that are suitable for different types wells separately.
The diameter of the flask is chosen to be 40-50 mm smaller.
To prevent the supply cable from sagging in the column, it is tied with special clamps to the cable and pipe.
Do not pull on the hose.

Advice: when a pump is stuck in a well and it is impossible to push it, the principle of pressure on the lever will come to the rescue. The mash depth is shallow and you can see where the flask is. We take a pipe or fittings with a diameter of 32-40 mm and immerse it in the shaft. We weld or screw a strong eyelet onto the edge of the casing, into which we thread another tube 2-3 meters long. Now we simply press the lever on the axial pin. Gradual pressure on the flask will ensure a smooth push down.

Useful video

Step-by-step diagram, getting the deep one:

Details about the submersible vibration machine:

Alexei 07.12.2014 Pumping stations

Those who use pumps sometimes encounter emergency situations. One of them is that the unit is stuck in the well.

The trouble is that if removed incorrectly, the equipment can remain in the ground forever. And this already threatens considerable losses.

How to remove the pump from the well without breaking anything or destroying the entire water supply system? To do this, it is necessary to observe certain safety measures when arranging it and know some rules for removing the device.

Main reasons and their solutions

What to do if trouble has already happened and all attempts to do something fail? The first step is to find out why this happened. And then decide on a way to resolve the situation.

There may be several factors that caused the breakdown. The most common reasons are the following:

Sagging wire;
Silting of the well;
Mechanical damage to the pipe walls;
Presence of foreign objects in the channel;
Wrong choice of equipment.

Depending on this, the method for resolving the issue is chosen.

The electrical cable is sagging

We take the pump out of the well

In this case, a loop forms and overlaps around the device, which leads to jamming. How now to get the pump out of the well and what to use? Special tools are not needed here. The use of brute force can cause a cable or wire to break.

When raising the pump, the mount will have to be cut off each time, and then, when lowered, installed again. The procedure is labor-intensive, but the safety of the equipment largely depends on it, so it’s worth a little effort.

If the pump is stuck and you have to lift it not by the cable, but by a hose or cable, which is generally undesirable to do, then you need to make sure that there is no slackness on any of the pulling elements.

Do not connect the cable and hose together with the cable attached to it. When lifting, a break may occur, and this will cause the unit to skew.

If the pump is stuck for this reason, you should first move it back into the pipe and then continue to lift it. Everything must be done slowly, without jerking.

Siltation of the well

This happens when the water intake is idle for a long time. You can pull the device out, but it will require a lot of patience. Since there is only one way to get the pump out of a silted well: by uniformly pulling and loosening the cable, as if by rocking. Moreover, even the appearance of a small gap guarantees a positive final result.

Water will begin to flow into the resulting space, it will erode the sludge, and it will begin to flow down, freeing the device. The main thing is not to make sudden jerks to prevent the cable from breaking.

Reverse siltation

Cleaning the pump

If a well is drilled in limestone rocks, then the water in it will contain a lot of salts and iron. Dissolved chemical compounds, reacting with oxygen, form a deposit covering the walls of the pipes. This happens especially quickly at great depths and with slow water renewal.

Accumulating on the pipes and the upper part of the mechanism, the sediment forms a plug, reducing the cross-section of the channel. Even powerful units with high productivity cannot cope with the accumulation of plaque.

Reverse siltation is usually detected only when trying to lift the device, after it is no longer possible to correctly pull the equipment out of the well.

To prevent such cases, you should follow two simple recommendations:

Once every few years, remove the equipment to the surface;
Select the correct level for placing equipment in the well.

But if this has already happened, then in this case the method of stretching into a swing is the most appropriate. And this should be done while the device is running - the collapsing sludge plug will be immediately pumped out, freeing the pump.

Casing tabs

It often happens that the pump in the pipe, when lifted, moves easily and suddenly rests against some obstacle. You can lower the device down, but moving it up becomes difficult. What prevents this and how to correctly remove the pump from the hole in such a situation?

The cause may be a protrusion on the casing. The equipment must be lifted gradually, turning it around its axis. This rotational movement will help overcome the existing obstacle.

Foreign objects

They fall into wells most often due to the fault of people. An example would be using a plastic bottle scrap instead of a real rubber anti-vibration ring. And then an object falling inside the channel can cause jamming.

It is better to prevent such a situation than to later solve the problem of how to pull the pump out of the well. In this case the best option special services will be contacted. Trying to do everything yourself most often ends in a broken cable. It is better to pay for the service, even if its cost is high, than to lose all the equipment.

Precautionary measures

All these troubles can be avoided if you follow some rules when constructing a well. You should not skimp when choosing a cable. It must be stainless; all other types and ropes cannot be used. And the fasteners must also be made of stainless steel, otherwise problems with how to pull the pump out of the well cannot be avoided.

The use of multiple pieces of hose is not permitted. If there are connections, it may break during lifting; even a small break can lead to jamming.

Of course, you should be careful when choosing equipment. Its dimensions should be smaller than the diameter of the pipe. By purchasing a device required sizes, you reduce the risk of it jamming.

To avoid having to think about how to lift a stuck pump, you should not neglect installing the head. This will prevent debris from entering the water intake system.

There are situations when it seems that all the necessary measures have been taken, but the device is still stuck and attempts to pull it out do not give any result. How to get the pump out of the well in such a situation?

It's not worth experimenting. If you can’t pull it out yourself, ask for help special services. Using video cameras and other equipment, specialists will determine the cause, and using various devices and tools will eliminate it.

Summary

The costs of eliminating accidents caused by pump jamming and destruction of the well walls can be quite significant. To avoid them, first of all, you should take the installation of equipment and its timely replacement very seriously. Important role This is where careful preventive care comes into play. And then you will not have to put into practice all the information that you gleaned from this article.

Ecology of consumption. Lifehack: Submersible pumps used to supply water from wells drilled on site require periodic lifting...

Submersible pumps used to supply water from wells drilled on site require periodic lifting for preventive maintenance and minor repairs. Also, the rise of pumping equipment is also associated with the replacement of an outdated unit with a more powerful device.

However, the extraction operation is not always submersible pump from the well pipe passes successfully. It also happens that the pump gets stuck tightly in the pipe. Well owners who are faced with such a problem for the first time do not know how to remove the pump from the well without breaking the cable.

Reasons for pump jamming in the well body

Basically, all the reasons leading to the occurrence of this unpleasant problem are due to the human factor. When during pump installation the technological requirements fastening elements of pumping equipment, and also does not pay due attention to their workmanship, it is difficult to expect a favorable outcome when dismantling the pump.

1. Sagging electrical cable

For this reason it happens greatest number cases of equipment jamming. This happens by biting a slack electrical cable in a loop that is tightened around the pump body.

In this situation, you should not pull the device with all your might, as this will not lead to success. But what you pull on may break. Then it will be difficult to do anything on your own.

Experts who have lifted pumps from wells more than once advise in this case to try pushing the device back. Repeating the attempts, try to feel the slack and at this moment continue to slowly rise.

At all, " better disease prevent rather than cure.” In order to avoid encountering sagging electric cables in your practice, it is necessary to fasten it with special clamps to a pipe or hose at the installation stage of the system. Moreover, it is not recommended to attach an electric cable to the cable, since when it is tensioned, the clamps may fly off.

When lifting the pump, you must also ensure that the cable and hose exit simultaneously to the surface. There should be no slack in either the cable, the cable, or the hose.

2. Siltation of the well as a result of long-term downtime

There are often cases in practice when a long-term shutdown of a well leads to severe siltation. The resulting layer of sludge becomes an insurmountable obstacle to the pump. When a pump is stuck in a well for this reason, experts recommend starting to rock it, during which the device is either raised or lowered.

What does this lead to? Water may gradually begin to erode silt deposits. In the end, it is possible that the path up will become clear, allowing the pump to be removed outside. The main thing is not to rush things and do not be overly active in order to prevent the pump from jamming.

There are also non-standard way combating silted wells. It is necessary to involve firefighters in solving the problem, who, with the help of a hose lowered into the well, will be able to wash away the silt deposits. The released pump will move smoothly upward.

To prevent the process of silting of a well, it is necessary to carry out preventive cleaning, the frequency of which should be once every three years.

3. Solid obstacle - complex barrier

There may be a solid obstacle in the path of the pump movement, which will act as a wedge. Such a barrier could be:

a dent in the pipe caused by soil movement;
flattened edge of the pipe;
burrs from a sloppy weld;
a defect in the assembly of the sedimentary column, in which instead of threaded connection pipes, they are welded, allowing axial displacement.

Meeting such an obstacle is accompanied by a characteristic hard knock, while the downward movement of the pump occurs freely.

Is it possible and how to pull the pump out of the well in this situation? There are known cases when rotation of the pump with the help of a pipe around its axis helps to go around an obstacle that stands in the way. However, a 100% probability of freeing the movement of the device is not guaranteed. This could be a one-time success. But it's worth a try, in case specific situation the problem will be solved this way.

A tool, fastener part, or other foreign object that accidentally falls into the well can also become a solid obstacle. In this case, the pump stops abruptly and unexpectedly during ascent. This happens when it gets into the gap between the well wall and the pump. hard object, which leads to jamming. In this case, the downward movement is free, and the upward jamming intervals vary depending on the selection of the cable. The object will not be able to slip through, the gap is too narrow. Therefore, experts advise stopping and calling specialists. The special equipment they have is capable of removing the interference from the well.

4. Reverse siltation effect

This effect is observed in wells drilled in limestone soils. As a result of long-term operation, a sedimentary layer forms above the pump location, turning into a “plug”. To stop this process, clean the well every three years.

A stuck pump in a well with a cable broken as a result of the applied efforts can be pulled out with a metal device with pins, popularly called a “cat”. Hooking the pump directly is considered a great success. Most likely, you can grab the end of a cable or hose while trying to pull the equipment up.
To push down a stuck pump, some inventors manage to use a crowbar tied to a cable. The main thing is to tie the crowbar tightly so that when you throw it into the well, you don’t leave it there. Of course, this can be done if the old pump is no longer intended to be used, because the probability of its damage is very high. It may work at a shallow depth of the pump.
Weld an “ear” to a meter-long section of pipe. After passing the cable, hose and cable through the pipe, lower the pipe on a separate cable into the well. Under the pressure of its weight, the pump can slide down and hang freely on the cable. Next, the pipe and pump are simultaneously pulled out of the well. Since the weight of the structure can reach 50 kg, the work must be carried out with an assistant.
If the pump suspension has not yet been torn off when trying to forcefully remove the equipment from the well, you can fix it taut and periodically tap it. If any slack occurs in the cable, re-tension it and tap again. These actions can be carried out over several days. This is a method for those who are especially patient, but in some cases it is crowned with success.

What pushes people to invent in various ways solutions to the problem with a stuck pump? The answer is simple: the high cost of services from companies specializing in this area.In some cases, their cost reaches the cost of installing a new well. Therefore, in order to save your budget, you need to do everything possible in advance to prevent the pump from jamming.

1. Do not skimp on the quality of the cable used to suspend the submersible pump. It is advisable to purchase a cable and fastenings for it made of stainless steel.

2. Try not to use pieces of hoses and cables spliced together inside the well. After all, when rising these weak spots may come apart, the pieces will bend and jam the rising device.

3. It is advisable to buy pumps with a minimum diameter in order to increase the gap between the walls of the well and the equipment casing. It is clear that pumps with a small thickness are more expensive than their larger counterparts. However, if you compare the difference in the price of pumping equipment with the cost of a new well, then buying a thinner device becomes not so unprofitable. Replacing the pump in the well will reduce the likelihood of the device jamming again.

4. Install a factory-made head on the well that fits tightly to the walls of the well pipe. This part will prevent debris and various random objects from getting inside the well.

And do not forget to carry out preventive cleaning of the well. published

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Submersible pumps used in autonomous systems water supply, sooner or later even with correct operation must be removed from the source for routine inspection or repair. Sometimes the unit completely fails and the pump in the well needs to be replaced. But you should know that performing this operation in some cases can be quite difficult.

The most common situations in which it is necessary to remove the pump from the well in order to replace or repair it are the following:

the engine of the unit, which drives its blades in motion, has burned out (in the case of a membrane submersible apparatus, the electromagnetic coil may fail);
a pump that is incorrectly selected in terms of power and performance for a specific well;
damage or burnout of the cable supplying the equipment;
silting or sanding of the well;
break of the cable holding the pump in the well;
failure of the pressure pipe connected to the unit’s branch pipe;
failure of the device due to improper installation;
equipment productivity has decreased;
jamming of the unit in the well due to the electric cable being wrapped around it, etc.

Removing the old pump

Replacement well pump, namely, extracting it from a well is a rather complicated procedure, despite the apparent simplicity of the process. The difficulty of dismantling equipment is affected by the depth at which it is installed. Experts usually distinguish between 3 levels of difficulty in lifting pumping equipment.

Raising the device from a depth of up to 30 m. This is the easiest option for dismantling the pump. In this case, the weight of the unit with the pipe connected to it is negligible. Even 1 person can cope with removing such equipment from the well.
Dismantling the unit located at a depth of 30 to 100 m. Artesian pumps, for example, the ECV brand, already operate at such depths. It is more difficult to lift the unit from such a depth, since the length of the pipe connected to it is longer than in the first case, and accordingly, the entire structure is heavier. In addition, you should take into account the mass of water in the pressure pipe. Therefore, you will not be able to remove the equipment alone. You will have to resort to the help of several people. Also, to lift the entire structure, you will need to use lifting devices, such as a winch or a manipulator.
Removing equipment from depths more than 100 m. As a rule, galvanized or stainless steel pipes. Sometimes instead metal pipes they use HDPE pipes that can withstand a pressure of 16 atmospheres. Ultimately, the weight of all the equipment is very high. To extract it from an artesian well, you cannot do without a crane or winch.

The extraction procedure itself is quite simple in theory:

disconnect the equipment from the power supply;
disconnect pressure pipe from the house water supply system;
pull out the pump (by the cable) slowly and carefully, disconnecting sections of the removed pipe (if it is metal).

Problems during dismantling

But sometimes it becomes impossible to remove equipment due to various problems.

The pump is silted

Silting of the unit body in the casing pipe is a fairly common problem when removing the unit. Siltation occurs if the apparatus for supplying water from the source is rarely used. It is the layer of silt that has accumulated in the casing that interferes with the removal of the device from the well.

In this case, to remove the equipment from the casing, it is used rocking method. The essence of the method is forced up and down movements of the pump, thanks to which the space around the unit will be washed with water and freed from accumulated sludge.

It is very important to carry out the rocking process slowly so that the washing occurs evenly. The cable should also be pulled without excessive force. Otherwise, the device will jam in the pipe even more, or the cable will simply break.

If rocking fails to free the equipment, you will have to resort to the help of firefighters. They lower the fire hose into the well closer to the pump and wash away the accumulated layer of silt with strong water pressure.

If the well in which the unit is stuck is drilled in limestone, then a possible reason for the equipment jamming may be limescale on casing.

Advice! In this case, to remove the unit, the rocking method is used with the engine turned on, so that the casing is cleaned more intensively.

The unit got stuck in the well while being lifted

Often when lifting equipment from a well due to sagging electrical cable or sagging cable, it becomes firmly stuck in the casing. In this case, the cable (cable) wraps around the body of the unit and does not allow it to move freely. The pump is “released” according to the following algorithm.

Try lowering the device to the bottom. After this, you should unwind the loop formed around the device by slowly swinging the cable in different directions while simultaneously tightening the cable (cable).
When lifting the unit, do not forget to synchronously tighten all elements connected to the pump: hose, cable and cable.
Secure all elements with clamps every meter.
Lift equipment slowly and with utmost care.

The pump fell into the well

If, when removing the unit, it falls into the well, it is not always possible to get it out. But it's certainly worth a try.

Make from steel wire grappling hook.
Weld steel wire to the hook. Its length should be equal to the depth of the well plus another 50 cm.
Lower the hook into the hole and when it reaches fallen pump, start rotating the wire to try to hook the hose.
If you manage to hook the hose, try to slowly and carefully pull the device out of the well. You can use a winch or other lifting equipment to remove it.

When it is not possible to remove the pump, it can be left in the well, provided that it does not interfere with its filling with water. Sometimes a non-removable unit destroyed with a bailer(see picture below)

The unit is broken into small pieces and either removed in parts or left in the well.

You can also call drillers who, using a special drill, will make the well usable again. You should know that this operation is not cheap, but it will cost much less than the cost of drilling and equipping a new well. In addition, after cleaning the well, replacement will be required. deep well pump on new.

Rules for installing a new pump

Before installing the pump in the well with your own hands, you need to prepare the casing pipe.

It is important to know that checking equipment “dry”, that is, without immersion in water, is prohibited. Even if turned on for a short time, it will fail.

Then connect the cable to the unit. It is needed in order to lower the device into the well or, if necessary, remove the pump from it. Usually a cable made of stainless steel or coated with plastic is used. You can also use a nylon cord as a safety rope. The tensile strength of the cable must exceed the weight of the equipment by at least 5 times. The cable is threaded through special holes located in the upper part of the unit, after which the loop is fixed with metal clamps.

Connect the pressure pipe to the device using a fitting.

Tie the power cable and cable to the pressure pipe (without tension) using plastic clamps. Next, begin lowering the unit into the well, holding it by the safety rope. This operation will require the assistance of at least 1 person.

Advice! The device should be lowered slowly, making sure that the electrical cable does not stretch or sag.

After immersing the equipment to the required depth (calculated in advance), the casing should be put on top part head, having previously connected a safety rope to it.

Connect to electrical cable, coming from the unit, capacitor box.

Turn on the unit and check its operation for 30 minutes. At the very beginning of starting the device, the water may be cloudy. But after a short period of time it should come out clean. If no problems are found when testing the pump, you can continue installing the unit.

Cut the pressure pipe coming out of the well head to the required size (with a small margin), put a fitting on it and connect it to the above-ground (underground) pipeline system. The final stage of installing the device is sealing the power cable in the sealed lead-in.

This completes the installation of the deep unit. Next, you can connect to the pipeline storage capacity or a hydraulic accumulator with a pressure switch. In the latter case, you will have a complete pumping station , which can uninterruptedly provide water supply to the water supply system of private housing construction.