Your water tank sits out of sight, on the roof or in a plant room, so it is easy to forget it exists. But it holds the water your household drinks, cooks and bathes with, and in the UAE’s heat it needs cleaning more often than most people expect. At Mega Meter, water tank cleaning is one of the services building owners most often leave too late. Here is exactly how often to clean a water tank in Dubai, and the reasoning behind it.