The PureIt Marvella RO water filter worked fine with bore well water until it stopped working 7 months after warranty. The electrical system failed and it would not switch on. The replacement costs a lot. Such appliances should not stop working when the electricity supply is well regulated and steady. I can understand the company making recurring money out of replacing filters, but charging high for electric failure is poor practice. I have stopped using it. The company needs to think of annual revenue lost because of poor build quality which they don’t want to fix.