A Water Tank Cleaning Machine is a specialized device designed to clean the interior surfaces of overhead and underground water storage tanks. It typically features a rotating high-pressure jet nozzle or cleaning head that ensures 360° coverage for thorough removal of sludge, sediments, algae, and bacterial buildup. Operated manually or automatically, it significantly reduces cleaning time and water wastage. Constructed from corrosion-resistant materials, these machines are ideal for residential, commercial, and industrial tank maintenance, ensuring hygienic water storage without the need for manual entry.