Dealing with legionella bacteria & biofilm contamination
Where a water system is known to be contaminated with legionella bacteria or is suffering from a build-up of stubborn biofilm then a more powerful disinfectant may be required to control the risks.
Under such circumstances our water hygiene engineers often select more powerful alternatives to chlorine alone, including chlorine dioxide, hydrogen peroxide or silver stabilised hydrogen peroxide, all of which are proven to be highly effective against difficult biofilm and legionella bacteria.
Water tank cleaning & disinfection
The cleaning and disinfection of cold water storage tanks should be conducted in accordance with BS EN 806-5:2012, BS8558:2015, BS PD 855468:2015 and the guidelines issued by the Drinking Water Inspectorate (DWI).
To determine overall cleanliness we recommend that all cold water tanks be visually inspected at least every six months together with water sampling to determine if cleaning, disinfection, repair or replacement is required. Guidelines issued by the Drinking Water Inspectorate (DWI) concerning water tanks serving drinking water require these to be drained, cleaned and disinfected annually.
Additionally, water sampling should be carried out every 6 months. Such cold water storage tanks should also comply with the WRAS regulations and Bylaw 30 (England and Wales). Note however that if the storage tank does not serve drinking water then there is no specific requirement to clean the tank annually.
For more information please review the DWI’s advice leaflet on water storage tanks and cisterns… water storage tanks →
Controlling pseudomonas in chilled & cooling water systems
Pseudomonas bacteria can cause significant biofouling issues in many chilled and cooling water systems, particularly if they are poorly maintained or left untreated. As Pseudomonas bacteria proliferates throughout such closed-circuit water systems it can accumulate to build thick microbial slimes which not only contaminate the water but also reduce heat transfer efficiencies (cooling) and increase operating costs.
Our expert water treatment engineers use high performance techniques specifically designed to deal with Pseudomonas and other slime forming bacteria in such systems. They act to disperse and then flush the unwanted microbial materials from the water systems to restore water quality and cooling performance.
Cooling tower water treatment, cleaning & disinfection
In addition to our water chlorination, disinfection and water tank cleaning solutions Water Treatment Services also offer a full range of expert cooling tower cleaning, disinfection, water treatment and tower maintenance and repair services covering all types and sizes of cooling tower installation.
For more information on our cooling tower cleaning solutions… cooling towers →
Expert water chlorination, disinfection & water tank cleaning
Contact Water Treatment Services today to discuss your water chlorination and system cleaning requirements. We can provide expert advice and professional water hygiene support regarding the cleaning, disinfection and chlorination of new and existing domestic hot and cold water systems; specialist water tank cleaning, tank repair, refurbishment and water tank replacement.
With offices in London serving the South and South East England, Manchester (North West), Birmingham (Midlands), Bristol (South East England and Wales), Leeds (North and North East) and Glasgow (Scotland), supported by regional teams of specially trained engineers, in-field water hygiene specialists and technical experts we can offer professional, cost effective water hygiene, tank cleaning, water chlorination, disinfection and engineering support services throughout the UK and Ireland.
Contact us today for more information or for your FREE, no obligation quote.