QUESTION
Need help in designing filters for an RWH system : Inexpensive methods sought

We are interested in installing a RWH system in our housing society building. The details of the building:

Total terrace /catchment area = 4000 sq ft
We have one two underground tanks of 15000 lt each and a over head tank of 10000 lt

We are very tight on budget so can’t effort to hire a consultant, We have already done some research and figured out how to divert the terrace water to the underground tank etc., we just need suggestion on the filter( detailed design and installation method) that needs to be installed before the water falls in to the underground tank.

We are not looking for an expensive filter as this water will not be used for drinking. Any other precautions that need to be heeded may also be indicated.

Praveen
praveenu@brainvisa.com

by
23 June 2009