For lifting of drinking water from boreholes and wells, often used external centrifugal pumps of the type “don” or “Kama”. It is a reliable and high-performance mechanisms, but they have their Achilles ‘ lie — backflow valve which keeps well enough in the system water during the period when Kasos does not work. As a result, the pipes creates air tubes that cause the water system in a kind of “embolism” — the pump ceases to swing, and to make him re-earn, we have to fill the system with water to avoid this, it is enough after irrigation to fix the hose on the hill or just put it in a container of water.
Recommend to read
THE CROP IN THE DRUM
So it is from time immemorial: the harvest of potatoes and before putting it in winter storage, and shortly before spring planting is sort — separated small tubers, which are fed to...
Power Management Center in the Garage
The proposed development has, of course, nothing to do with space. In this case, PMC (Control Center) is a control center for only the power supply of electrical equipment, not for flights...
