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1. TDS of 4 ppm, Is it safe for drinking? Should I change filter?

Dear Sir,

I had an Aquaguard RO system installed nearly 2 years back. Recently one of the executives from Aquaguard came to my house and told me that the water we were drinking had a TDS of 4 ppm. Is it safe for drinking?

He told me that 4 is very less for drinking and that we were not getting minerals and calcium from the water that we were drinking. He told me to change the filters of the system and that 40 ppm will be safe for drinking.

Please tell me if I should change the filters and whether whatever he told me is true or not. Waiting for a reply.



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