Rooftop Rainwater Harvesting Filters Rainy FL 100 (Roof Area Cover upto 1200 Sq ft) During Rainy session you will collect & Reuse total Rainwater is 1 lakh liters if the Avg. annual rainfall is 1000 mm. Rainwater storage and reuse ... Water demand that can be substituted by harvested rainwater = total monthly water use. for more details visit ....... web: www.allegianceindia.in Email: allegiance.entp@gmail.com Allegiance Rainwater Harvesting Vadodara Gujarat