I use a brand called pureflo - permionics For water supply in most areas in Pune, i think it is an excellent device. (not tried with borewell) you only need to run water through a certain water outlet to keep it clean, and they recommend servicing/membrane change once a year
answered 03 May '10, 04:32
Never use HUL's PureIt. It doesnt work. Instead it contaminates water.
answered 03 May '10, 06:28