Water tank hygiene and compliance

Waterborne diseases are a potential serious problem in any communal water system where large quantities of water are stored, typically in a high level cold water tank. In warmer weather, particularly in shut down periods, the temperature of static water will rise, creating perfect conditions for bacteria such as legionella to form.

Three simple steps will help ensure water hygiene and safety:

1. Inspect your water tanks regularly. We recommend in line with L8 that you check at least once a year that tanks are clean, sound and free from rust, vermin and algae. If you aren’t sure what you are looking for an expert inspection will tell you what you need to do.

2. Clean tanks thoroughly and make any repairs needed. Replace the tank if necessary. Cleaning should be carried out in accordance with L8 guidelines concerning legionella prevention. If you don’t understand these, then it’s best to get an expert to do it for you.

3. Comply with L8 standard. If you’ve modified the system, altered your management structure or changed the use of the building since its last risk assessment, you need to conduct a new risk assessment. If you have any doubts how to do this, consult a member of the Legionella Control Association; fully qualified to L8 standards.

It’s easy to check whether you comply with the relevant guideline or standard using our online Compliance Checker.

Call us on 0800 243 471.