Rainwater Harvesting (RWH) is the practice of capturing, infiltrating or utilizing rainfall from roofs, constructed catchment surfaces and driveways, sidewalks, parking lots and streets. RWH is an effective water conservation strategy in urban and rural areas around the globe, decreasing unnecessary use of heavily treated drinking water for landscaping, toilet flushing, and washing. With proper filtration, rainwater can also serve for potable water uses.

In average, Nepal receives 1600 mm of rainfall every year (Maharatta, 2008). A rainwater harvesting system consists of three basic elements: a collection area, a conveyance system, and storage facilities. This year I am happy to share, that this monsoon season I have harvested 7000 liter of rain water in my house from July to till date. I used the plastic sheets, concrete cement floor as the catchment to collect the water. I had no facility of gutter so use the gravity technique to flow the water from the roof to basement tank via palsti ?inch pipe.

The limitation to my activity was that I could not have the proper filtration facility to treat the water. So I used the Sodium Hypochlorite Solution (Chlorine Solution) to disinfect the water from bacterial growth. I used 4%  Chlorine Concentrated Sodium Hypochlorite about 5ml for 1000 liter of water that resulted Free Residual Chlorine 0.2 mg/l. (laboratory Test result). I used the water for Cleansing, Dish washing, bathing and washing activities.

From this activity I concluded that if I will establish the proper channeling and gutter system, I could harvest more water. It was a great experience for me, making all family member work to harvest rain. I have now committed myself that I will make a proper design to harvest rain till next monsoon. So Gain from rain, Delivery at your door steps.