Quote Originally Posted by kagalingan View Post
^
purpose ng rain catchment pang flush sa comfort room and if may filtration pwede na panligo.

malaki din tulong to hold rain para hindi bumaha or to lessen

naiisip ko nga si sm mall malalawak roof yan ang madami masasalo ulan.
easy to do if one has the space.
also, catching it and storing it is one thing. using it is another thing. one has to have the proper piping.
but yes, i can see the financial advantage.

as a way to diminish flooding, i think it's not going to be a significant improvement.