Recharge Pit with Desilting Weir- Design Manohar Khushalani

This Recharge pit can be used where the volume of water is large and there is not enough space to accommodate a desilting tank. The other advantage is that the surface water runoff can come from all four sides of the pit as the desilting weir can be all around the pit.

Important: The number of borewells depends on the volume of water. Minimum one , maximum two, Three borewells can be used only in exceptional circumstances. Under no circumstance, the borewell should be deeper than the firsr acquifer. This is to ensure that people dont use it for pumping out water from deep acquifers.

Desilting Tank Design by Manohar Khushalani

After the harvested water is brought down from the catchment area this tank is used to remove the silt from the water.  Dimensions are indicative. The size will vary depending on the amount of water coming in through the inlet pipe. more than one tank can be used in series if the first tank does not remove all the impurities. The Desilting tank should be cleaned in the dry season every year. Water outlet from the last desilting tank in the series will be sent to the Recharge Pit

For details of Recharge Pit with inbuilt filter :

Water Harvesting: High Capacity Recharge Pit | Manohar Khushalani