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Rainwater Harvesting

Rubber composition for RWH tank

Can anyone guide me for chemical composition and testing of rubber to be used in manufacturing potable water for rain harvesting tanks?


Inputs sought for a low-cost Rainwater Harvesting filter design

Respected Experts in this field,Read More

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CommonMan's Filter-Ajith.doc1.15 MB

Rainwater and Grey water system costs.

I am a postgraduate student currently studying at the University of Sheffield.Read More


Recharging or down the drain? Questions on RWH - Malad, Mumbai

I have a query about rain water harvesting in a housing society located in Malad West, Mumbai.

The society has four buildings each having 7 floors including ground floor. The roof area is 3500 sq ft. While the builder claims that he had installed RWH in the building about 8 years ago, the residents see no change in water table levels. They fear that the water from roof could be going to under ground drains.

What could be the problem? Could it be that due to hard rock in that region, no change in water table is taking place?

Would it be better if they stored the rain water in sumps rather than allowing it to percolate to recharge the groundwater levels? Is there a rule of thumb to be followed?


Cost Estimate For Rain Water Harvesting System : Subsidies Applicable? Uttarkhand

My house plot is 7200 sqft. I would like to construct a rainwater harvesting system for the same and would like to ascertain the costs and materials required for the same.Read More


Domestic Rainwater Harvesting System: Udaipur, Rajasthan

I am from Udaipur Rajasthan, I want to install a rain water harvesting system for my house, construction of which is currently on.Read More

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