Water Tank Cleaning to B58558 (previously BS6700)
Water tank cleaning and disinfections are carried out to comply with the latest HSE guidelines and ACoP including COSHH regulations. In order to control the legionella risk and maintain water hygiene, domestic and commercial water systems including storage tanks, calorifiers, should be inspected regularly and, if necessary, physically cleaned and then disinfected. Disinfection and physical cleaning of domestic and commercial water systems is essential if water hygiene is to be maintained and the risk of Legionnaires Disease is to be controlled.
Britewater provide water saving techniques by using chlorine and Sanosil, a chemical designed to be used in potable water. Chemical disinfection is carried out by chlorinating the water in the cold water storage tank to 20 – 50mg/litre free residual chlorine. It is then allowed to flow to all parts of the system and leaving to stand for an appropriate period, whilst monitoring the chlorine concentration throughout disinfection to ensure that there is a sufficient residual chlorine level. The system is then thoroughly flushed following chlorination.
A full method statement and COSHH sheets are provided before work commences.
Below shows an example of tank cleaning: