How to pump a well - a mandatory action

08-08-2018

Water supply

Each well should have its own passport with a whole bunch of application documents, including from the Ministry of Subsoil Use. And in these documents the item “Results of experimental pumping” is written in black and white. Therefore, for this reason alone, one cannot do without this operation.

But the situation may be even simpler, and even the documents are useless. The fact is that the first water coming from a newly constructed well will definitely be very dirty, and so much so that chemical and microbiological analyzes will also be useless, which are also mandatory and should appear in the passport.

Well pumping is the most important operation introduced in the passport.

We make a decision

At the first stage of pumping the water will be not just dirty, but very dirty, but this is normal.

The process of pumping can take quite a long time. You cannot say in advance how much a new well needs to be pumped.. It may take from 10-12 hours to several days or even weeks. One can only assume that if the well passes through the clay, pumping will be long and difficult and may take even months.

Technology

Actually, the pumping technology is inherently quite simple - this is getting water from the well until it is clean.

Therefore, the process diagram is as follows:

A - safety cable, we advise you not to forget about it and to be very demanding about the reliability of this cable;
B - check valve;

Scheme of pumping (see the description in the text)

C - filter, problems with the filter can often lead to errors in the quality assessment and in general the presence of water in the well;
D is a rubber ring, a modest but very useful element of the whole structure, which will protect the system from abrupt contact with the casing;
E - casing.

Thus, the pumping is preceded by several actions:

pump selection and immersion; When choosing a pump, keep in mind the following:

the pump will work more than one day, it will need to be immersed in the casing, so you should not buy an expensive pump, a productive, but cheaper, submersible pump is quite suitable for pumping;

On the direct question, how much to pump a well after drilling, you can give a direct answer - until perfectly clean water comes

the more expensive one can already be purchased later for regular work with clean water;
you need to be prepared for the fact that the pump will often fail - his regular work with the sludge will do its job, but the repair is done fairly quickly and work continues.

Helpful advice! We advise you to buy a centrifugal submersible pump, such are much better able to cope with the increased load than the vibration ones.

it is necessary to hang the pump in the pipe at a height of 70-80 cm from the bottom of the well, only in this case, we can expect that the sludge will be captured and rise to the top;
Periodically, the pump requires maintenance — stopping, removing from the well, and flushing with clean water.

In the photo the most suitable and simple pump for pumping is submerged.

Errors and some nuances

It would be easier to answer how much time to pump a well, if some significant errors did not interfere with the work, which can ruin the whole thing altogether.

Errors

Among the possible errors we note the following:

the pump is suspended too high, it is too close to the surface of the water - as a result, low efficiency; you can feel it when the water comes out for quite a long time, which is called “neither one nor the other” - it is not too dirty, but clean, without impurities, it also cannot be called; in the worst case scenario, in this situation, the well is quickly silted up and the pump completely stops driving water;
the pump is lowered too low - and it starts to get constantly clogged with silt; you will be able to identify this condition when you too often have to clean the pump; a very unpleasant consequence of the low position of the pump is its complete immersion in the sludge, while it is very difficult to extract it from there;
very close drainage of water on the surface - the water above should be discharged as far as possible, otherwise it can return downwards through the existing channels in the ground and, thus, the pumping process will continue indefinitely;

Water is drained as far as possible from the structure.

Helpful advice! To protect against the return of pumped water back into the well, we advise you to build a clay lock on the outside of the pipe. The lock will protect rain and melt water from entering the well.

insufficient attention to the safety cable — it’s not even a mistake, it’s just a catastrophe, as a stuck pump that cannot be pulled out with a cable, or a broken cable is then forced to make such incredible efforts to remove the pump that the drilling of the well itself will seem childish fun in this case.

If you do not correctly choose the place of discharge of outgoing water, then the answer to the question of how long to pump a well after drilling will be one answer - a long and very long ..., so you need to take a place away

Nuances

We draw attention to some of the nuances associated with the described action:

any work on the well is related to the work of increased trauma and labor-intensiveness, be extremely careful - the ground can “go” to the side, the pressure can be unexpectedly large - all hazards must be carefully calculated and a salvage recipe must be prepared from each;
lowering the pump into the well, use the technology of fishing on the boat that is familiar to all fishermen:

lower the pump carefully until you feel the bottom of the plug;
lift it up again by 30-40 cm;
turn on the pump;
slowly start to lower it again, but with pushes up - 5 cm down - 3 up;
this behavior will cause the sand to rise, but not clog the hose.

already during the operation of the well, it is necessary to carry out preventive pumping during 2-3 hours during periods of reduced water consumption;

The use of high pressure can be a very effective method of pumping - it is usually used when reanimation of a well.

the bottom of which is still formed from or, which is the reason why the well is not pumped, can be washed with clean water supplied under pressure through a hose;
By the way, this method of pumping a well is also practiced - by the method of high pressure, or by pumping down pure water; This method allows pumping as soon as possible, but only on clean aquifers, when it is necessary to reanimate a previously used well, or on a well, of which you are 200% sure of the reliability of the structure.

findings

The process of pumping a well is quite long, so set yourself up right away to do all the work yourself. Do not forget, the well operation instruction requires its periodic pumping regularly. Moreover, adjust yourself to the need for accurate knowledge of the entire technology.

Be sure to review more than once and constantly refer, as a memo, to the video in this article. The price of neglecting pumping is simple and natural - you will not use the well, and you will have to carry water in bottles from the store.