Development of the parcel and construction of the house begin with supply to it current networks and arrangement of autonomous water supply system. Most often for ensuring need for water of well it is not enough therefore it is necessary to drill the well which depth depends on depth of water-bearing stratum. For water supply in water supply system of the house or dacha submersible or superficial pumps with different operation principle are used.
Electric pumps of superficial type have on earth surface near well head, water supply from it is carried out by suction. To prevent deformation and perezhimaniye at suction, for water supply not rubber hoses, but plastic pipes equipped with back valve that water did not pour out are used. These pumps are simple in service and installation as they always are in direct access.
Choosing the superficial pump, pay attention to reliability of operation of the back valve which has to provide tightness of system.
Deep or submersible pumps establish in the well, under water surface in close proximity to bottom to provide continuous water supply in case of drought when the height of water falls. These are rather powerful devices capable to provide water supply on height from 40 to 80 and above meters. For water supply in them both the rubber hose, and plastic pipe can be used. It is possible to refer inconvenience of service to shortcomings of such pumps: for these purposes the pump needs to be dismantled and pulled out from the well. There is inverse relation of power of the submersible pump from depth at which it is installed: the depth is more, the power is less.
The defining factor in question of the choice of the submersible or superficial pump is depth of water surface in this well. Taking into account laws of physics and average atmospheric pressure will only work for earth surfaces, the superficial pump when depth of the water surface in the well is less, than 8 m. For other cases you should buy the deep pump which price is higher, but also power is more.
When choosing the pump it is necessary to consider that performance paid off on the maximum consumption therefore it is possible to lower a few requirements to it in favor of bigger pressure.
Having chosen pump type, it is necessary to pick up such which will be able to provide the necessary pressure and performance. For this purpose you have to know debit of your well, i.e. how many water it can give in unit of time and also the necessary size of pressure taking into account height on which water, and its maximum consumption taking into account quantity of drawn-off points and needs of your family will be pumped. The size of debit can be determined at skilled pumping. It will be more difficult to calculate pressure necessary to you as in calculation it is necessary to consider not only the maximum height on which it is necessary to pump water, but to determine the size of compensation for the account of head losses in pipeline system by the scheme of water supply system of your house and site. The maximum consumption is defined for case when all drawn-off points of water supply system at the same time work.
When choosing the pump it is necessary to consider that performance paid off on the maximum consumption therefore it is possible to lower a few requirements to it in favor of bigger pressure.
In technical documentation on the pump the schedule of dependence of performance on pressure has to be provided. Choose such pump which will provide the maximum efficiency at those calculated parameters of the well which you have defined.