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Aquacair Limited Water System Clean & Chlorination

As part of your responsibility to control the risk of legionellosis: regular cleaning; maintenance and disinfection is required to remove contaminants that may harbour bacteria or act as a nutrient for bacteria to multiply.

Cold water tanks accumulate sediment at a varying rate. When the base of the tank is obscured by sediment it is usually time to remove this by chlorinating the tank, draining the water and removing the sediment. The tank is then refilled and chlorinated to 50ppm chlorine for 1 hour. Some tanks require annual cleaning and disinfection while some building managers particularly in high risk properties such as care homes and helthcare departments opt for annual clean and disinfection as part of their legionella control scheme.


If chlorination is carried out in response to legionella colonisation then the water is circulated to outlets and the dose checked over an hour period increasing the chlorine present as required to maintain 50ppm.


During cleaning and chlorination we can treat, paint and seal any corrosion of metal tanks and intsall lids, vents and screens to ensure the tanks are compliant with the approved code of practice.

Showers and taps may accumulate scale which has to be removed so that bacteria cannot shelter and grow. Descaling taps and disinfecting shower heads is an essential part of legionella control.


Dead-legs can be removed and redundant plant isolated.




Click Here to obtain a quotation for water service maintenance, clean and chlorination.

Aquacair Limited

Air and Water Hygiene Services