The cleaning, disinfection and chlorination of water systems is an integral activity that helps maintain the necessary standards. This is  important in domestic and commercial water systems where contamination can result in legionella problems if not treated. Cleaning and chlorination involve the addition of chlorine. Chlorine is a low cost yet extremely efficient and effective disinfectant. 

Chlorination of Water Systems

By chlorinating water systems we are able to kill dangerous waterborne pathogens such as Legionella bacteria. Bacteria can contaminate water systems in various ways including developing in the water system outlets, distribution pipework and water storage tanks.

Water Treatment with Chlorine

Water treatment with chlorine has been used to clean and disinfect water systems in the UK for well over one hundred years. Chlorine forms an important disinfection process in a number of standards including BS EN 806-5:2012, BS8558:2011 and BS PD 855468:2015. These British Standards deal with the design, installation, testing, operation, cleaning, disinfection and maintenance of drinking water services inside buildings.

Water contamination

If water is contaminated and bacteria such a legionella is suspected then urgent sampling is required. At Water Hygiene Consultants our in-house engineers arrive on site and take a water sample. This is then sent to the laboratory for analysis. This sample determines whether microbial contamination has occurred. 

Legionella risk assessment

When a Legionella risk assessment report recommends chlorination of a water system this should be carried out as soon as possible. This very often includes cleaning and chlorination of the systems, distribution pipework and water tank, however the report will specify the exact requirements.

Chlorination for New water Systems

The procedure for flushing, disinfection and chlorination of water systems originally came under BS 8558 .However they are now included in the 2015 British Standards document PD 855468.

If you would like to discuss a water chlorination please contact us.