How to remove a pump from a pipe. How to remove a stuck pump from a well - effective ways to solve the problem. Foreign objects have entered
Extract borehole pump, submerged tens of meters, may be needed for various reasons. And during the ascent, an unpleasant situation often arises when the unit gets stuck or, even worse, falls down. What should you do if the pump is stuck in the well and how to lift it in the easiest and safest way? There are several reasons for such troubles, which will determine the choice of actions to remove equipment. Under no circumstances should you panic and use brute force: this may result in damage or loss of equipment (the cable may break and the unit may fall down), water intake equipment, and even complete loss of the well.
Borehole pumps are manufactured in such a way that their geometry matches as closely as possible cylindrical shape casing pipe and its diameter. Average diameter housing pumping equipment is 10-15 cm, and usually there is a small distance between the walls of the well and the unit - only 2-4 cm. Therefore, pumps can get stuck quite easily.
Fig.1 Modern borehole pumps
How to get the pump out of the well if it is stuck? It all depends on the reasons why the equipment remains inside despite efforts made to remove it. The most common factors that prevent the smooth removal of pumping equipment are:
- wrapping a broken or sagging cable around the equipment casing;
- siltation due to prolonged lack of maintenance;
- various damage to the casing;
- objects falling between the walls of the unit body and the well.
Before pulling the pump out of the well, it is recommended to observe the situation while attempting to remove the equipment. Based on some indirect signs, it is possible to determine why the unit cannot be removed outside. If possible, a special video camera is used, which is immersed in the well and transmits the image to a PC monitor, allowing you to determine exactly why it is impossible to remove the unit.
Cable wrapping
When lifting stuck pumping equipment, the power cable is often in a free state without additional fixation, which is why it sags. When removing equipment, the broken wire is often wrapped around the housing, forming a loop, which makes lifting the unit up impossible. The main sign that winding has occurred is the complete immobility of the unit, which remains in place even with considerable effort when trying to lift it.
Fig. 2 A wrapped pump cable is one of the common causes of problems when extracting from a well There is no need to forcefully pull or pull the cable: it will break and the device may be lost forever. This problem can be solved simply: you need to lower the equipment back to its previous depth, loosen the cable to increase the diameter of the loop, and then carefully pull the pump up again. In most cases, the equipment is pulled out on the first or second try.
Silting of the well
If the well has not been cleaned for a long time, then it is very likely that the pump has become stuck in a layer of silt, and it will be blocked by a thick layer of sand, clay or limestone, which can be up to several meters thick. To remove the pump in such a situation, you need to be patient.
The method of releasing equipment from under a thick layer of sediment takes time: it is necessary to slowly remove it, gently “swinging” and moving the cable up and down so that particles of sand or clay gradually sag along the edges of the case. Once the sediment is washed away with water, the pump can be easily removed. In the future, it is necessary to regularly clean the well to avoid re-sucking of the equipment into the sludge layer.
Damage to the casing wall
At long-term operation wells often experience various damages. If during lifting the pump gets stuck in any area, and when you try to lift it you feel a mechanical obstacle and hear the sound of impacts, then the problem is damage to the pipe. on her inner surface a dent, chip, weld divergence or other similar damage could form.
To safely remove the equipment, it must be rotated to allow it to clear the obstacle. However, in this case there is no guarantee that the pump will come out on its own. IN in some cases the situation may turn out to be hopeless and a new well will need to be drilled.
Hitting objects
If during the operation of a well some object falls into it - a bolt, a pebble - then this can firmly block the unit and, unfortunately, it is very difficult to cope with such a problem without the help of specialists. In most cases, you have to call a team with probing equipment. If you're lucky, experts will offer optimal solution, but most often you will have to sacrifice technology.
The pump came off and fell inside
If the cable holding the equipment breaks and the submersible pump falls into the well, then careless and unprofessional actions on the part of the well owners can lead to irreparable consequences. Therefore, it is better in this case to also call specialists armed with special equipment and a set of cables for extraction. Even if you believe in your strength, lifting broken pumping equipment from the bottom of a well or well will be technically difficult.
Fig. 3 Crane for removing the pump from the well
Since the depth of wells is usually several tens of meters, lifting will require a specially shaped load, crane or one or two winches, a long thin cable, special gripping elements (cats), metal wire, canvas gloves. During the lifting process, it will be necessary to take care of protection against falling foreign objects.
All this requires a balanced and thoughtful approach, and the optimal solution in 99% of cases is to contact specialists. Don’t risk your well, but trust the professionals to lift the fallen pump!
Water is extracted from a well using pumping units. Sometimes such equipment needs to be raised to the surface for repair or maintenance purposes. But what to do if the pump gets stuck when pulling it out and how to deal with the problem yourself?
To remove the hydraulic device without damaging it, you must determine the cause of the problem. The pump can get stuck in the well in the following situations:
- The electrical cable is loose. In this case, during the lifting process, the pump suddenly becomes fixed in a certain area. This happens as a result of the sagging power wire, which wrapped around the body of the device and blocked the passage in the charge.
- There is a lot of sediment in the well. The pump does not move, but the cable stretches without problems. Such a stop in the movement of the hydraulic device when it is pulled out may indicate clogging of the well with sediment, which most often forms from sand during infrequent use of the water source. Moreover, sand deposits can accumulate in a layer several meters thick.
- There is damage in the walls of the sediment pipe. The pump stops at one point and sounds of blows are heard. The reason for this may be the appearance of dents, violation of the integrity of the joints, or damage to the edge of the sediment pipe.
- Equipment misalignment. This problem occurs due to sagging electric cable or when there is a strong jerk on the lifting rope. Also, sometimes the pump warps if it is lifted using a hose or power cord. Such actions lead to incorrect placement of the structure in the pipe. In this case, there is no impact sound, and the device simply suddenly gets stuck in a certain place in the well.
- Foreign objects have entered the water source. The hydraulic device can be jammed by various fasteners of the device or by debris caught in the opening between the shaft wall and the pump.
Sometimes a more complex breakdown occurs - a rupture of the lifting cable. Something like this happens emergency situation mainly when the cord wears out.
Remedies
Having determined the reason for the pump stopping when lifting inside the well, you can try to fix the problem yourself.
When the cable sag
This situation is not among the most difficult, but still requires careful and fairly clear actions:
- the pump should be carefully lowered to the bottom of the well;
- the cable, which becomes loose during such actions, must be carefully pulled up;
- When the electrical wire reaches almost the same tension as the lifting cord, you can begin to remove the pump from the water source.
When considering a pump, it is necessary to use not only a cable, but also a cable with a hose. All elements should be pulled together, tightening them every one and a half meters with special connecting parts - clamps or clips. The device must be taken out without sudden movements, smoothly and gradually.
silted pump When a well becomes silted
If sediment has formed during regular use of a water source, then the problem can be eliminated quite simply. The pump must be carefully swung while simultaneously tightening and loosening the lifting cable. From such movements, water will gradually penetrate into the gap formed under the device, helping to erode sand accumulations.
In such a situation, 20 minutes is enough to raise the pump. But it should be borne in mind that the entire process of freeing the pump from the sludge must take place without sudden movements that could damage the equipment.
Sometimes deposits in wells harden. This process usually occurs if the source long time not used. Solid sediments are quite difficult to wash away, but quite possible. For these purposes use:
- Water under pressure. This method is used when there is a small layer of silty hardened deposits. Washing should be carried out with water under sufficiently high pressure. To eliminate strong formations at the bottom of the well, a long flexible hose is used, which easily reaches the bottom of the source.
- Chemicals intended for descaling. For these purposes, suitable means that are used in everyday life to decompose deposits. But it is necessary to take into account that in order to wash away solid accumulations at the bottom of the well, a large amount of such substances will be needed, and this will lead to quite considerable costs.
- Lemon or acetic acid. The products are diluted with water and poured into the pipe. This method is used in rare cases, since acids can damage pump parts. But if you plan to replace the device, then this option is perfect for removing formed deposits.
If you have a metal cable, you can use a hammer to try to create vibration. To do this, pull the lifting cord and tap on it. Such actions can quickly destroy the hardened small layers inside the water source.
Large volumes of hardened sediments in the well require repeated procedures. The erosion process may take more than one day. You can speed it up by periodically turning on the equipment for pumping water, as well as making attempts to pump the pump.
In case of damage to the settling pipe
In such a situation, you can remove the pump by moving the pump using a cable:
- rotate around its axis;
- slightly change the vertical position of the device.
Small tilts must be done carefully, without excessive force, otherwise the lifting cord may break.
If the sediment pipe is damaged, do not use sudden movements to pull the device through the problematic structural element. These actions will lead to even greater fixation of the device inside the well.
The option of removal through an opening in the pipe is possible if its internal cross-section is much larger than the diameter of the pump. But only if there are no serious dents on the walls of the sedimentary structure, which significantly narrow the passage. If the pump is jammed at a short distance from the surface, you can try to remove the pipe to the point of damage.
Strong displacement sedimentary structure requires the involvement of professionals with special equipment. In rare cases, it is necessary to crush the stuck structure and remove it in small parts. But such a process takes a lot of time and requires considerable expenses. Therefore, in such a situation, problematic wells are often mothballed and new ones created.
If the pump is misaligned
In order to remove a pump that has become stuck as a result of not correct position necessary:
- loosen the cable;
- lower the device down so that it is in its original position;
- lift the pump up.
Such manipulations should be carried out with the same tension on all outgoing cables - electric wire, cord and hose. The incorrect position of at least one element will cause subsequent distortion of the device.
If the pump does not move and it is not possible to lower it at all, then it is better to contact specialists who can special tools get the equipment without damage.
If foreign objects enter
Often the pump gets stuck in the well due to falling into it various parts. There are several ways to solve this problem:
- Gently move the equipment inside the source. An object that prevents the pump from lifting may fall.
- Push the part. This can be done using a crowbar or a long stick. Care must be taken when doing this, as you may accidentally damage the device itself.
- Lower the pump down. If you can’t lift the equipment to the top, you can try to lower it a little. When this is successful, you need to pull out the element preventing the rise. To remove debris, use hooks, ropes, nets or sticks.
If all methods fail, it is better to contact a specialist. Incorrect independent actions may damage the design of the equipment.
If the lifting cord breaks
It is much more difficult to pull out the pump if the lifting cable breaks. In this case, all methods depend on the complexity of the situation:
- Lift the device using an electrical wire and hose. If, when the cable breaks, the remaining cables remain intact, then sometimes it is possible to carefully pull them together to remove the pump from the well. But it should be borne in mind that these elements are not strong enough and can break at any time.
- Hook it with a hook. This method is used if the pump has quite heavy construction and removal by pulling the cable with the hose is impossible. A hook is firmly tied to the end of a strong cable or rope. It is lowered into the well to hook and then pull out the pump. For safety reasons, the remaining intact cables are used.
If all the elements holding the pump break and the device falls into the well, it is recommended to use this option. A corkscrew-shaped device is attached to a metal rod, which is lowered into the well and screwed directly into the body of the stuck device. It is quite difficult to get the pump in this way and after removing it, its structure will be damaged.
To avoid problems with removing the pump from the well, it is necessary to take into account the following points when arranging the mine:
- drilling of the source must be carried out in compliance with all technological requirements;
- pipes for wells should be selected based on the characteristics of the soil and the possibility of its displacement when weather conditions change;
- to prevent cable breaks or sagging, it is recommended to connect all three elements coming from the pump with special clamps;
- the cable for lifting the pump must be solid, durable, and also resistant to corrosion;
- to avoid foreign objects entering the water source, a head should be installed in the upper part of the shaft;
- When installing the pump, you need to take into account that its diameter should be slightly smaller than the cross-section of the sediment pipe.
To avoid breakdowns, it is necessary to periodically clean the filters and the well itself. Prevent formations various deposits Regular use of the source will help. If this is not necessary, it is recommended to occasionally crank the pump in idle mode. It is also required to check the condition of tension and fastening elements at least once every six months.
The correct approach to well construction will help to avoid unpleasant moments associated with lifting the pump. But still, if such a problem arises, you can try to pull out the device yourself. In this case, the main thing is to be careful and avoid excessive force, which can aggravate the situation and cause pump malfunction.
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.
Silting 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, seek help from special services. Using video cameras and other equipment, specialists will determine the cause, and using various devices and tools, they 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 preventative care comes into play. And then you will not have to put into practice all the information that you gleaned from this article.
Wells are a mandatory element of water intake workings and autonomous water supply sources. A situation where a pump gets stuck in a well is a common failure. Getting it out of the barrel without damage is the main task in the repair process. The success of the work depends on whether the specific causes of failure, the parameters of the mechanism and the condition of the casing pipes are taken into account.
Wells and failure features
For water extraction, two types of wells are common: artesian or “limestone”, reaching deep horizons (for industrial scale) and shallow “sand”, found on personal plots for private use of owners of dachas and houses. They use deep submersible pumps various characteristics. The mechanism can be powerful with complex design or a simple one, which is pulled out independently by hand.
The space in which the equipment operates is limited - from its outer edge to the walls of the casing pipe, the distance is about 1 - 2 cm. For subsequent repairs or maintenance, it is important to pull it out without damaging either it or the casing pipe.
Typically, a breakdown occurs when you try to pull equipment to the surface to carry out any manipulations with it: maintenance, repair, replacement. A hopeless situation arises when the pump does not work and cannot be pulled out, so the water source is completely blocked.
Less commonly, the unit may get stuck when lowered into an autonomous water intake source; as a rule, this occurs due to incorrect selection its size in relation to the diameter of the pipe or the presence of foreign objects in it.
Causes of jamming
There are several factors leading to failure. Here is their list:
- the cable is sagging or broken
- the sand well has silted up
- sediments appeared in the artesian spring
- casing walls are damaged
- foreign objects inside the well
- pump misalignment
Without special equipment, it is impossible to look into the pipe and find out why the pump is stuck in the well, but the cause can be determined by knowing the characteristic “symptoms” of each situation.
NOTE! Before starting repairs, it is necessary to stop the operation of the well completely, so as not to break the cables and not lose the mechanism at depth. All manipulations are carried out with moderate efforts - the thoughtless use of brute force is fraught with aggravation of the situation
Sagging, cable breaks
If the cable is stretching harder and harder and becomes fixed at a certain point, it is most likely slack and wrapped around the pump casing.
Repair:
- The pump sinks to the bottom
- Take out the slack in the cable, straighten the loop by slowly swinging it and pulling it up
- When lifting the unit only with a cable, take into account that in addition to it there is also an electric cable and a hose. All three elements need to be synchronized with each other, that is, pull them together, pulling them evenly - this way they will not sag and a loop will not form
- All three elements are tightened with clamps every 1 - 1.5 m
- Slowly raise the mechanism itself
To prevent sagging and breaks of cables, it is necessary to fix them with clamps so that a single power line. The ties need to be changed every time they are pulled out/immersed.
Siltation, sediment accumulation
Excessive silt accumulation occurs when a sand-bottomed spring is infrequently or improperly exploited. In this case, all cables are pulled evenly, but the pump is tightly stuck in the well.
The problem can be solved simply: by gently rocking the pump in different directions, alternately tightening and loosening the cable, as well as periodically raising and lowering it. Water enters the lumen and deposits gradually dissolve. At the same time, an additional wash is applied.
If the mine has not been used for a long time, the sludge may harden. Then it is washed away using a fire hose or flexible hose. They sink to the bottom of the source, the water supply is turned on under pressure - deposits are washed away
Solid sediment on the walls of the casing pipes, as well as on the artesian pump itself, is much more difficult to remove. There are ways to remove a stuck pump in this case:
- washing with water under high pressure. The method is appropriate if there are few deposits and they can be washed away;
- pour cheap ones folk remedies anti-scale: vinegar, citric acid. They are diluted with water and poured into the pipe. It is advisable to use substances that are neutralized or washed away over time without harm to humans, like the two indicated liquids. This method is good to use if you plan to replace the pump, since there is significant drawback: if you use concentrated acids for a long time, the parts may become unusable;
- application chemicals against scale. Those that are used in everyday life to remove deposits on household utensils are suitable. Disadvantage: expensive, since a large amount of substance is required. The modern chemical industry can offer mixtures that are minimally harmful to humans and the environment, with a narrowly targeted effect only against scale.
Sometimes it is necessary to repeat the procedure for using scale-corroding agents 2–3 times in order for all layers of deposits to be washed away. During operation, the equipment is turned on so that the movement of water erodes the sediment
Erosion of sediments takes from 2 hours to 2 days. During the process, you need to check whether the unit is free by rocking it. To prevent damage, the source and its filters are periodically cleaned.
Pipe damage
If the device rises easily to a certain point, and then it stops, the sound of an impact is heard and it becomes clear that some obstacle is preventing it from moving, perhaps the casing is damaged. Typical types of its malfunctions are:
- dent
- edge deformation
- welds have dimensional irregularities and roughness
- joint displacement
Example of a bad weld
The problem of how to pull the pump out of the well in this case is solved by turning it slightly, carefully changing its position while simultaneously slightly tilting it. An important point here there are moderate efforts: you need to move and tilt a little at a time, otherwise the cable may break and the structure will fall. It is not recommended to try to pull the unit through the problem segment using rough physical strength, then it can jam tightly. There are greater chances of success when the diameter of the structure is much smaller than the cross-section of the pipe - then the room for maneuvers inside increases.
It makes sense to try to pull out the pipe itself down to the damaged link if the obstacle is close to the surface
Third Party Items
Various objects inside the excavation - tools, fastening elements, bolts, any debris - cause jamming. These objects fall into the gap between the pump and the shaft wall, stopping the equipment.
Often the hole becomes littered during the process of lifting the pump to the surface, so it is necessary to monitor the cleanliness around the workings
Solution to the problem:
- carefully move the structure inside the well - the object will fall down, clearing the way for it
- sometimes going down is possible, but going up is not. Then you need to lower the unit down and try to pull out the debris with a net, hook, wire, rope with a loop
- try to push the object with a crowbar, stick or rigid cable. This is a dangerous operation as there is a risk of damage to the installation itself.
If the above measures do not help, you should stop trying and call specialists - this will save the equipment.
Distortion inside the pipe
Equipment may become distorted for the following reasons:
- cable slack
- strong jerk of the cable intended for lifting
- lifting using an electric cable or hose, which created an uneven position of the structure
Signs of misalignment: upward movement occurs without delay, but at a certain point it becomes tighter and slows down completely, while there is no sound of knocking on an obstacle.
To remove the damage, before removing the pump from the well if it is stuck, you need to loosen the cord and lower the pump down a little so that it takes its original position. Then, pull it up again. It is necessary that all cables - electrical wire, hose, cable - be in the same position, since excessive tension in at least one of them leads to distortion. By manipulating them it is necessary to achieve the correct position of the device.
The described method is suitable if the equipment moves freely inside to a certain place and falls down. If it does not move, it is necessary to call specialists who will remove it using special tools.
Broken lifting cable
The most difficult case is a break in the cable intended for lifting equipment. You can try to lift the pump using only a hose or electric cable, if they are not broken, but keep in mind that they are weaker and can easily break.
Eat The best way, if other cables are intact, but you need to act quickly before the weight of the pump breaks them. You need to take a strong rope, tie a metal hook to its end, and try to hook it into the structure. When pulling out, the position must be adjusted with other cables; they will also serve as a safety net.
If all the cables break and the pump falls into the well, use the following method. A hook in the form of a corkscrew is welded to the end of the metal rod. It is lowered, screwed into the body of the unit and raised. This method is labor-intensive; its disadvantage is that the mechanism will be unusable after removal.
Critical situations
If the excavation has exhausted its resource, and attempts to pull out the pump are unsuccessful, then it is appropriate to mothball it and drill new well. Cardinal method crushing of a stuck pump is a special drilling rig with extracting it in parts.
With independent repair work the following must be taken into account:
- excessive force will break the cables;
- You can pull out a stuck mechanism using “cats”, hooks, and other devices, but this poses a risk of the suspended structure breaking and falling during pulling out. If the pump falls into the well to the bottom, it can break all the cables or be fatally damaged due to the fall. After this it will be much more difficult to pull it out;
- An attempt to move the pump with a suspended crowbar is the most common way to render the equipment unusable, as well as the entire production as a whole. A falling crowbar is guaranteed to render it inoperable. After this, it is extremely difficult to restore work. Should not be doing that.
- after purchasing the pump, you need to replace the cable from the factory with a stronger steel one
- fasten all cords to avoid distortions, use stainless steel clamps
- the recommended pump diameter should be less than 2/3 of the pipe cross-section
- using a multi-piece hose is risky
- the head will protect the well from falling debris
An example of a method for mounting a submersible pump
Acceptable force manipulations:
- in a situation where deposits interfere, the cable is selected, fixed in a tense position, and periodically tapped. Next, they wait a while until it weakens and pick up the slack. The procedure is repeated many times;
- to the piece steel pipe They weld an “ear” to which a reliable rope is attached. Then, all the pump cables are passed through the pipe. The structure, the weight of which can reach 50 kg, is lowered down in order to push the unit down under its weight. After that everything is pulled out. The idea is to pull all the cables evenly, tightening them if any are sagging or letting them go too tight.
Excessive force will damage the pump or deform the pipe. First of all, craftsmen recommend tugging the cable a little, lowering and pulling it out. This is done several times. This method helps, even if it seems that the mechanism is stuck tightly. When the cable sag, the structure is lowered to the bottom, then, shaking it, the loop is removed.
WITH a well pump, like other water supply equipment, requires periodic maintenance. In order to carry out maintenance work, the pump must be lifted from the well. But all attempts to get him out were unsuccessful. The pump is stuck. How to get the pump out of the well if it gets stuck. we'll talk about it in this article.
Why is the well pump stuck?
Usually ,
For artesian wells, use casing pipes of small diameter. In addition, they insert plastic pipes diameter 100 – 110 mm. To lift water from a well, deep submersible pumps are used, which operate in limited space casing pipe. The distance between the pump and the inner edge of the well usually does not exceed a few centimeters. For this reason, any violation of this small gap leads to the pump getting stuck in the casing.
The reasons why it is not possible to freely pull the pump out of the well may be different. The most common among them:
- Sagging cable.
- Silting of the well.
- Mechanical damage to the pipe walls.
- Foreign objects getting into the pipe.
Due to the small gap between the pump and the casing, it is simply impossible to see what happened there without special equipment. Therefore, you will have to find out the causes of the problem based on the symptoms.
Pump stuck during lifting
Symptoms: The pump is stuck in the lifting process and will not move upward despite considerable effort.
Diagnosis: This is likely the most common and easiest to fix problem: a loose cable that has become wrapped around the pump body.
What to do? Carefully lower the pump down, remove any slack in the cable and lift the pump again. In this case, you need to ensure that the cable, cable and hose do not sag.
Avoiding cable sagging is very easy. It must be attached to the hose with special clamps. Each time you lift the pump, you will have to remove them and then install new ones, but these are trifles compared to the efforts to pull out a stuck pump.
It is impossible to get the pump out of the well onto the sand
Symptoms: It is impossible to remove a pump from a sand well, which has served faithfully for several years without any problems.
Diagnosis: The well is silted or sand has begun to flow into it, the pump is blocked by sediment, which can reach one meter or more.
What to do? The structure must be “swinged”, carefully acting with a cable. It must be pulled up, then released until the pump can be pulled away from the sludge. Water will enter the gap and the sediment will gradually be washed away. The pump can then be carefully removed.
This problem most often occurs if the well has not been cleaned for several years. Annual cleaning will reduce the risk of well siltation to a minimum. You can read about how to clean a well in my.
The pump cannot be removed from the well on limestone
Symptoms: The pump cannot be removed from a limestone well that has not been serviced for a long time.
Diagnosis: The situation is similar to the previous case. Wells on limestone are not subject to normal siltation, so we can conclude that the so-called “reverse siltation” has occurred. Its cause is excessive deepening of the pump, as a result of which the water around it stagnates. As a result, the calcium and iron salts contained in the water combine with oxygen and turn into sediment, which accumulates on the pipes and the end of the pump.
What to do? Attempts to flush the well to get rid of the plug will not lead to success, since the sediment is very dense. As in the previous case, you will have to slowly and carefully swing the pump. In this case, it is recommended to turn on the equipment by directing a stream of water into the well so that the water quickly erodes the sediment. In the future, special attention should be paid not only to regular well maintenance, but also to the correct placement of equipment in it.
Pump stuck in the middle of the well
Symptom: The pump is stuck in the middle of the well and a knocking sound may be heard.
Diagnosis: The pump’s progress is hampered by damage to the pipe, which has arisen due to a split joint, a dent, a flattened edge, etc.
What to do? In this case, you need to carefully rotate the pump. It is possible that the equipment will slip past a dangerous place, but there is no guarantee that the problem will be successfully resolved.
The pump suddenly got stuck in the middle of the well
Diagnosis: An object (bolt, pebble, etc.) was dropped into the well, which got into the gap between the pump and the wall, jamming the equipment.
What to do? In this situation, you can try to push the pump down using a weight. To do this, take a piece of steel pipe suitable diameter about a meter long. A metal “ear” is welded to the top of the pipe, onto which a separate cable is fixed. After this, the cable, cable and pump hose must be passed inside this pipe. The structure is lowered down so that the pump is moved from its place under its weight. When this happens, you need to carefully pull the pump and a piece of pipe out of the well. It is worth considering that the weight of the device can reach more than fifty kilograms.
If the pump is stuck tightly, and no method can be used to move it, all that remains is to contact a specialist. Using special equipment, such as an underwater video camera, they will be able to accurately diagnose the problem and offer the optimal solution. However, it should be remembered that such services are expensive. In addition, not every well with a stuck pump can be saved. Competent design and construction of a well, use quality materials And regular maintenance will help prevent many problems. And the question of how to get the pump out of the well if it is stuck will never arise.
How to get a pump out of a well if the cable breaks
Cable breakage is one of the most difficult cases. There was such a case in my practice. If the pump is small (baby) and the depth of the well does not exceed 20 meters, then you can try to pull the pump out using a hose and wire. For this operation to work, before lowering the pump into the well, you must tie the wire to the hose using electrical tape or plastic clamps. In this case, you should not make sudden movements. The lifting of the pump should be smooth and uniform.
