Domestic, Commercial and Industrial water systems are fed from dedicated water storage tanks that in turn are fed from local water supply systems. Contaminated or dirty water is potentially a very severe health hazard, badly maintained water storage tanks are a major contributory factor. All water tanks and the associated pipelines must be regularly inspected, maintained, cleaned and disinfected in line with local and International standards.
Before
After
Inspecting and Cleaning a (Hot and Cold) Water System
a) Water systems (hot & cold water) must be flushed at least every six months with water of not less than 70 °C for 5 minutes (or an equivalent temperature/time combination) or treated with chlorine to provide minimum free chlorine residual of 1-2 mg/l at all outlets. b) Reduce dead legs (stagnant lines and stubs) in the system, c) Clean and inspect hot water tanks regularly – annually as a minimum, d) Continually run hot water circulation pumps – avoid recycling to mixing valves only, e) Store hot water at a minimum temperature of 60 °C (140 °F) and deliver to the taps at a minimum temperature of 50 °C (122 °F), f) Store and distribute the cold domestic water below 20 °C (68 °F) – if not possible , then consider monitoring of Legionella and using a disinfection system if Legionella is not under control, g) Flush the entire water system on a regular basis (at least quarterly), h) Consider routine treatments – including the use of approved biocides.
EPSCO is an approved and certified company to clean any type or size of water tank system.