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Water Chlorination, Disinfection & Water Tank Cleaning
Integrated Compliance are a leading UK water treatment company offering a full range of expert water hygiene services including water chlorination, drinking water disinfection and cleaning of new and existing domestic hot and cold water systems; water tank cleaning, tank repair, relining, refurbishment and water tank replacement.
Our cleaning, chlorination, disinfection and water treatment services help organisations achieve and maintain good standards of water hygiene, and control levels of waterborne bacteria in their water systems.
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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 cleanliness it is recommended that all cold water tanks be visually inspected 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.
Expert water chlorination services
Our expert water hygiene, water chlorination, disinfection, water tank cleaning, maintenance and engineering support solutions include:
Water System Cleaning & Disinfection
Comprehensive hot and cold water system cleaning, disinfection and chlorination services for new and existing installations to meet the requirements of BS EN 806-5:2012, BS 8558:2015 and BS PD 855468:2015.
Cold Water Storage Tank Cleaning & Disinfection
Expert Cold Water Storage Tank cleaning and disinfection services.
Tank repair, refurbishment & replacement.
Water tank repair, relining, refurbishment and replacement.
Maintaining good water hygiene standards
Maintaining good standards of water hygiene and controlling levels of dangerous waterborne bacteria, including Pseudomonas and Legionella bacteria, which causes the potentially fatal condition Legionnaires’ disease, is an essential component in the successful management of any engineered water system.
Poorly maintained water systems, old and dilapidated pipework, neglected water tanks can lead to significant deterioration in the quality of water standards. Importantly, such conditions can also create ideal environments for the growth and proliferation of dangerous waterborne pathogens such as Legionella. This may significantly increase risks to the health and safety of employees, customers and system users, but it can also have a legal impact on your business as you may be breaking the law, exposing you and your business to potential legal action or civil prosecution.
Water chlorination & disinfection of new & existing water systems
Our teams of highly trained water treatment engineers are experts in performing disinfections of both new and existing water services installations in accordance with the requirements of BS EN 806-5:2012, BS 8558:2015 and BS PD 855468:2015. These standards formulate standards in regards to design, installation, testing, operation, cleaning, disinfection and maintenance of drinking water services inside buildings.
When to clean & disinfect hot & cold water systems
New or existing water services installations should be cleaned, flushed and disinfected under the following circumstances:
- New or Refurbished hot and cold water Installation
- New Components or Equipment introduced to existing system
- When the hot and cold water services have not been used, flushed or the water treatment control measures have been inactive for some time.
- If significant contamination or stagnation of the water tanks is identified.
- Parts of the water system have been substantially altered or have undergone maintenance works that may have introduced contamination.
- Water sampling results indicate excessive microbial contamination.
- When an outbreak or suspected outbreak of Legionnaires’ disease or legionellosis is linked to the water installation
- As a recommended remedial action identified in the legionella risk assessment.
Dealing with legionella bacteria & biofilm contamination
Where a water system is known to be contaminated with legionella bacteria or is suspected of harbouring a build-up of biofilm then a more powerful disinfectant may be required to control the risks.
Integrated Compliance use a number of chemical products including chlorine, chlorine dioxide, hydrogen peroxide or silver stabilised hydrogen peroxide, all of which are proven to be highly effective against difficult biofilm and legionella bacteria.
FAQ’s
As a landlord, what are my duties?
The legal duty for landlords who provide residential accommodation to consider, assess and control the risks of exposure to Legionella to their tenants is not new. This requirement stems from the Control of Substances Hazardous to Health Regulations 1989; Section 3(2) of the Health and Safety at Work Act 1974 makes provision for the legislation to apply to landlords of both business and domestic premises. All water systems require an assessment of the risk which they can carry out themselves if they are competent, or employ somebody who is.
In most residential settings, a simple assessment may show that the risks are low and no further action may be necessary. (An example of a typical lower risk situation may be found in a small building (eg housing unit) with small domestic-type water systems, where daily water usage is inevitable and sufficient to turn over the entire system; where cold water is directly from a wholesome mains supply (no stored water tanks); where hot water is fed from instantaneous heaters or low volume water heaters (supplying outlets at 50 °C); and where the only outlets are toilets and wash hand basins). If the assessment shows the risks are low and are being properly managed, no further action is needed but it is important to review the assessment regularly in case anything changes in the system.
Simple control measures can help control the risk of exposure to legionella such as:
- flushing out the system prior to letting the property
- avoiding debris getting into the system (eg ensure the cold water tanks, where fitted, have a tight fitting lid)
- setting control parameters (eg setting the temperature of the calorifier to ensure water is stored at 60°C)
- make sure any redundant pipework identified is removed.
Tenants should be advised of any control measures put in place that should be maintained eg not to adjust the temperature setting of the calorifier, to regularly clean showerheads and to inform the landlord if the hot water is not heating properly or there are any other problems with the system so that appropriate action can be taken. If there are difficulties gaining access to occupied housing units, appropriate checks can be made by carrying out inspections of the water system, for example, when undertaking mandatory visits such as gas safety checks or routine maintenance visits.
Where showers are installed, these have the means of creating and dispersing water droplets which may be inhaled causing a foreseeable risk of exposure to legionella. However, if used regularly (as in the majority of most domestic settings) the risks are reduced but in any case, tenants should be advised to regularly clean and disinfect showerheads. Instantaneous electric showers pose less of a risk as they are generally coldwater-fed and heat only small volumes of water during operation.
It is important that water is not allowed to stagnate within the water system and so there should be careful management of dwellings that are vacant for extended periods (eg student accommodation left empty over the summer vacation). As a general principle, outlets on hot and cold water systems should be used at least once a week to maintain a degree of water flow and minimise the chances if stagnation. To manage the risks during non-occupancy, consideration should be given to implementing a suitable flushing regime or other measures such as draining the system if it is to remain vacant for long periods.
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