Questions on rainwater harvesting

Hi

I read the article you published on rain water harvesting as I was looking to find more information about it. I am interested in installing it for my home and open farm land, but I am not sure whom to contact. The article would have been much more useful if it had referenced the following points:

1. Whom should I contact to install the system for my home/open farm land
2. Recommendation on quality products
3. Contact information of companies that sell and install the system

Please advise.

Thanks Sudha,

Resident of Piduguralla, Guntur (Dt), Andhra Pradesh