In Abu Dhabi, maintaining clean drinking water is a legal mandate under public health regulations, which require all residential buildings—including private villas—to undergo professional cleaning and disinfection of their water tanks at least every six months. This responsibility rests squarely on property owners or management firms rather than individual tenants. Authorities emphasize that neglecting these tanks allows sediment, dirt, and dangerous, invisible bacteria to accumulate, creating significant health risks. Even if water appears clear and odorless, it may still be contaminated, making routine, professional maintenance an essential practice for resident safety.

To ensure high safety standards, the law dictates that tank cleaning must be performed exclusively by service providers licensed by the Department of Municipalities and Transport. The standard procedure involves fully draining and scrubbing the tank, applying a safe disinfectant, and conducting a final rinse before refilling. To verify compliance, municipal judicial officers conduct periodic inspections and respond to resident reports. Owners must keep official records of maintenance and lab tests on-site; failure to produce these or maintain proper health standards can result in formal warnings, fines, or, in severe cases of contamination, the immediate suspension of the water supply at the owner’s expense. Approved cleaning companies can be easily located via the TAMM platform.