Paihia residents and visitors are urged to conserve water as a sharp increase in use strains the town's water supply.
The summer influx of visitors increases the amount of water used in Paihia but this year the average daily use has soared from 1724 cubic metres to 3000cu m - 500cu m a day more than at this time last year.
Far North District Council acting infrastructure manager Mike Colebrook said the treatment plant, taking water from the Waitangi River upstream of Haruru Falls, is operating 22 hours a day to keep up.
Demand for water is also exceeding the network's ability to deliver water to households and businesses, meaning a drop in pressure at some properties in the higher areas of Paihia.
He urged people in Paihia, Waitangi, Haruru Falls and Opua to reduce water consumption over the next few weeks.