MANILA - Water concessionaires Manila Water Co. and Maynilad Water Services Inc. are offering free septic tank cleaning to consumers, officials said.

Customers were advised to call the Manila Water hotline (1627) and Maynilad (1626) to check the schedule. Cleaning outside schedule will be cost P3,000.

The cleaning services are part of the "environment charge" on customers' monthly bills.

Last year, 58 percent of Manila Water customers and 32 percent of Maynilad customers availed of the free service.