The copper stage adds trace copper to the purified water — the same principle as the copper vessel that has stored drinking water in Indian homes for centuries. The alkaline stage lifts pH above neutral, so the water is smooth and balanced rather than flat. Together they are why families switching over from bottled water find this one tastes like what they were already buying.

Plain RO strips calcium, magnesium and potassium along with the impurities. KENT's TDS Control blends a calibrated share of mineral-bearing water back after purification, so the dissolved impurities are gone but the minerals that matter for bone health, muscle function and taste remain in the glass.

High-TDS, hard borewell water in outer Delhi and Noida. Chlorinated municipal supply through most of central Delhi. Tanker water in the sectors still waiting on a pipeline. Brackish supply with heavy dissolved salts. The seven-stage combination covers all of it with no source-specific setup.

The purifier switches on when the storage tank falls below its threshold and shuts off when full. Consumption in a real household swings — a quiet Tuesday, a Sunday with guests, a week of heavy cooking — and automatic operation keeps the tank filled through all of it without overflow waste or the pump running dry.