Hard Water in
Puducherry

Puducherry averages about 405 ppm across 19 covered cities and towns, which puts much of the state in a moderate-to-high hard-water range for household appliances. That is enough to create visible scale, slower heating, and higher maintenance needs even when the water looks normal.

In this dataset, Pondicherry is currently the highest covered city in Puducherry at about 480 ppm. That level is strong enough to justify more aggressive descaling for geysers, kettles, and washing machines.

In lower-TDS parts of Puducherry, appliances usually need periodic rather than constant descaling, but regular maintenance still matters because repeated heating leaves deposits behind over time.

Yes. Puducherry is not one uniform water market. In this dataset the range runs from about 210 ppm in Mahe up to about 480 ppm in Pondicherry, which is why city-level pages matter more than broad statewide assumptions.