So far, we’ve discussed testing water balance and active biocide levels. Both are very important and should be tested on a daily or weekly basis depending on your ratings.
Today, we discuss microorganism water testing and Legionella.
Although this word on its own may mean very little to you, you may have heard of Legionnaire disease – potentially fatal pneumonia. It is caused by the bacterium, Legionella pneumophila. Bacteria such as this and other similar types are commonly found in natural sources of water such as rivers, lakes, and reservoirs. What you may not know is that they can also be found in purpose-built water systems such as cooling towers, hot/cold water systems, spa’s and pools. This means that any pool filled from the tap could potentially have Legionella growing in it.
Ordinarily, this is nothing to be concerned about. For responsible pool owners who follow proper testing regimes and biocide monitoring, you will be able to manage this with spa and pool chemicals. This bacterium and others like it are part of the reason that keeping your biocide levels correct is so vital. It is imperative, therefore, that readings are taken on a daily or weekly basis and consistently throughout the year.
Those working in the pool and spa industry are required to undertake a risk assessment for their pools and hot tubs regularly. This will show whether the levels of Legionella and other microorganisms are at a safe or dangerous point. These risk assessments should be undertaken on a quarterly basis and action taken when required. This testing process is relatively easy.
When deciding on a testing company, ensure they are UKAS-accredited laboratory which takes part in the Water Microbiology Proficiency Testing scheme. You will receive sample bottle/s and directions on how to take and return the samples. Your results should be returned within weeks, giving you a full insight into how your pool fares.
For in-depth information on Legionella, visit the Health and Safety Executive website here. Alternatively, contact us today. Our Total Chemical Solutions team are always here to answer any of your questions.