DEVICE TO ACCUMULATE PRECIPITATION AND ACCUMULATION OF FRESH UNDERGROUND WATERS Russian patent published in 2011 - IPC E03B3/24 

FIELD: construction.

SUBSTANCE: invention relates to local methods of water supply to small groups of population or cattle at the distance from centralised water sources by means of absorption and accumulation of precipitation. Device to accumulate precipitation and fresh underground waters consists of three horizontal layers. The first layer, horizon of absorption, is also arranged in the form of three-layer structure. The upper layer of which with thickness of 20 cm is filled from pebbles or crushed stone with diameter of 5-10 cm, the middle layer with thickness of 20 cm - from pebbles or crushed stone with diameter of 3-5 cm, and lower layer with thickness of 10 cm - from medium coarse grain sand. The second layer for water accumulation consists of nonsaline sandy-loam or loamy soil on confining layer, where drainage system is arranged with inclination towards water outlet.

EFFECT: invention makes it possible to increase accumulation of precipitation water for subsequent use for domestic purposes.

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