2026-07-12
When should you change Aquaguard filters in Kolkata?
Kolkata tap water is hard on RO membranes. TDS creep, slower flow and a plastic taste mean your Aquaguard filters are due. Book genuine RO filter replacement in Kolkata and we show a before/after TDS reading on site. Most flats in Salt Lake, New Town and south Kolkata need a set every 6–8 months; monsoon months can be sooner.
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