Matthew Dean, SEW head of operations control, said the outages were due to “extremely high demand during the very hot weather”.
He urged households to put aside some water for essential use while they had a supply.
The water company also said that storage reservoirs had reached critical levels in Whitstable and Herne Bay.
“We are doing everything we can,” Dean added.
“But some customers will continue to have intermittent water supply until reservoir levels have been restored.”
The company said it had pumped 660 million litres of water to customers across the region – more than 100 million litres more than the average for a day, he continued.
