Despite water scarcity, Bengalureans let hundreds of litres of reject RO water down their drains every day without much thought. For every one litre of filtered water, RO (Reverse Osmosis) water purifiers waste 3.5 litres of water. But many Bengaluru households don't even require RO purifiers. “RO water purifiers have become a status symbol. Many residents do not know the purpose of the purifiers, let alone the water quality,” says Vinosh M Paul, independent water purifier sales and service technician in Bengaluru. So, do you need an RO unit? What are RO water purifiers? Reverse Osmosis (RO) is an advanced…
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