ANDERSON, S.C. - A water main break at Hartwell Lake has left thousands of people in Anderson and Pickens counties without water.

The 45-inch pipe that draws water from the lake into the Anderson Regional Joint Water System broke Wednesday afternoon. The system provides water to 13 utilities that serve 200,000 customers in Clemson, Anderson, Pendleton, Williamston and other areas.

Water system officials say they have repaired the pipe, but it will take at least a day to refill all the pipes in the system. Anyone on the system who has water needs to boil it before using.

Fire trucks are helping pump water to operate the cooling system at AnMed Health Medical Center in Anderson. Clemson University is using bottled water or boiling water on campus.