The problem of drinking and technical water in a summer cottage can often be quite acute. One of the ways to solve it can be called the device of wells. They are artesian and arranged on the sand. The second type may well be used as a temporary source of water. A well in the sand has not too much depth (15–35 m) and productivity. It is drilled to a sandy layer through which water flows. The water quality will be somewhat worse than in artesian wells. The service life is also not too long - 3-7 years.
A well in the sand has not too much water - only about 500 liters. For comparison: up to 1200 liters are collected in the well. However, the quality of water in such a well is somewhat better than in a well, since the sandy aquifer is protected from the penetration of external water by clay. In addition, the expediency of its device is often determined by the absence of the need to obtain a special permit. So, how do they arrange such a well?
First of all, it is necessary to take into account the fact that if the water is at a depth greater than 35 meters,auger drilling is not possible. A sand well cannot also be drilled if a rock formation is encountered in the path of the equipment.
The risk of wasted funds when drilling this type of well is quite high. There may be too little or no water in the sand.
The design of such a well consists of a casing string, a surface or submersible pump, a head and a pipeline. A sand well, reviews of which in most cases are positive both among summer residents and rural residents, must necessarily be equipped with a filter at the bottom of the pipe. It will prevent sand from getting into the water. This filter will need to be cleaned periodically afterwards.
The pipeline for supplying water to the house will need to be laid below the freezing depth of the soil. A hole is made in the casing to connect it. From above, the well is closed with a cap. Usually it's just a lid with a latch and a seal. A surface conventional pump can only be used when the well depth does not exceed 8 meters. Otherwise, apply deep.
The quality of the filter directly affects the durability of the well. You need to install a good one right away. In the event that it fails, the well on the sand will not be subject to repair. Will have to drill a new one. It is best to use a mesh one, since such models are produced only in an industrial way, and therefore, are of high quality. He isa device consisting of a frame and a wire mesh stretched in it. The size of the sand fractions that the filter will retain depends on the size of the cells. In this regard, it is worth consulting with a specialist.
In order to extend the life of the filter, you should additionally arrange gravel. She will retain the sand. A special sump is mounted below to collect sediment. Thus, a sand well can be created with your own hands. The pump is selected based primarily on its diameter and water quality, as well as its volume.
