Mumbai: BMC tells you how to clean water tanks

This picture has been used for representational purpose

BMC has come up with guidelines for cleaning water tanks in private societies to reduce the risk of any contamination. In 2012-13, almost 17 per cent of water samples were found unsafe for drinking.

The BMC improved the system and in 2018-19 unsafe water samples came down to 0.70 per cent. As per guidelines, tanks should be cleaned twice a year by contractors registered with the corporation.

Moss and other garbage should be removed using chlorine and a high-pressure jet. If there is no outlet to use a suction pump, use ISO/FDA authorised chlorine powder to disinfect the tank. Users should send a sample of water from a clean tank for testing at a corporation lab situated at Dadar.