Satishji if you send us the roof area and some basic details such as1. Do you have a sump tank?2. Do you have an open well/b

Satishji if you send us the roof area and some basic details such as1. Do you have a sump tank?2. Do you have an open well/borewell?3. Would you like a Rain Barrel?4. Would you prefer storage or recharge or a combination? Then we could help using the power of the internet and web .Here are some youtube films which may help https://www.youtube.com/watch?v=daouoJiB4uw&feature=channel_pageandhttps://www.youtube.com/watch?v=Dz_VGaPr610&feature=channel_pageandhttps://www.youtube.com/watch?v=O-2dEifj5Ac&feature=channel_page