After full borehole drilling to the required depth, clean water will not immediately go by definition. There are several explanations for this. First, even if the aquifer does not contain solid fractions, the minute suspensions initially in the water will be present. Secondly, during drilling, the rock will somehow partially fall down, and completely remove it( for example, a bailer) will not work.
That's why after completion of work on the development of the well, it must be pumped, or, as the professionals say, swing. How to do it, what is the essence of the methodology - with all the nuances can be found in the proposed article.
What you should know about pumping
well Even after properly pumping a well, you will not get a full guarantee that you will not have to clean it afterwards. But the service life to the next maintenance of the barrel with competent organization of the buildup increases many times.
The duration of the cleaning process depends on the characteristics of the soil and the depth of the trunk, therefore, there are no specific recommendations on the time of its completion. Practice shows that with equal degree of probability, swing may take a day and a few weeks.
Propagation technology
The process itself is nothing at all complicated - submergence of the pump in the barrel and banal pumping of water.
What to take into account when swinging:
- Full clarification of the liquid is not evidence that the work is done completely. It is necessary to wait at least 15 to 20 minutes without turning off the pump. And only if all this time comes really clean water, then the process of swinging can be considered complete.
- The optimum level of the device location above the bottom filter is about half a meter. This ensures that the resulting layer of solid fractions, which will be "cut off" by the filter and precipitate, will not cover either it or the pump itself.
Typical errors
The liquid is not diverted from the barrel. As a result, it begins to penetrate the well again. Not only are its walls destroyed, but time for the pumping process increases many times( if not to infinity).
When the pump is lowered into the shaft, a safety wire can not be attached to it. If the product becomes contrived during operation, then pulling it to the surface will be problematic( and even impossible without additional measures).The use of a cord that is included in the pump package is not practical, since it can not withstand excessive dynamic loads and simply breaks. That's why you only need to use a flexible metal cable.
Incorrect pump position selection. Too close to the bottom - will often clog with silt;directly at the edge of the water( mirror) - low efficiency, since it will capture solid fractions only partially, basically it will drive water upward. The result is that cleaning the well will take a long time, and the quality of the liquid will still remain low.
Use of a "working" pump ( intended for installation in a well) when swinging. The products purchased for these purposes are not adapted to long-term operation under extreme conditions. They pump clean fluids well, but if they contain solid suspensions, and in large quantities, then the products will either break down relatively quickly or, after being put into the prepared well, they will not work for a long time.
Therefore, it is advisable to purchase a cheap submersible model( for example - an inexpensive pump of the Kid type).At least, for one, even a deep well, such a pump is enough, and if it is later unsuitable for further operation, the loss is relatively small. Well, if it survives, it will always come in handy as a spare,( emergency) option.
Continuous swing. In this mode, no model will last long. The device should be periodically stopped, pulled out of the barrel and cleaned thoroughly.
Information is more than enough to properly organize the process of self-pumping the well, especially since advice on all cases can not be given. Good luck!
