Cold Water Storage Tank Regulations
Cold Water Storage Tank Regulations. Checks for a Risk Assessment.
Under the UK Building Regulations, there are a number of requirements that companies need to comply with when it comes to their cold water supply. These include the provision of wholesome drinking water to taps and any sink in a food preparation area, as well as provision of water of suitable quality to flushing toilet cisterns. It is also a requirement to ensure the prevention of undue consumption of water by making sure fittings and appliances are installed efficiently.
Checks to carry out during risk assessment
- Cold water storage tanks must be placed in a cool place, with insulation provided if necessary.
- Stored cold water must be at a temperature of less than 20°C – check once a month by running the cold tap for a couple of minutes before taking the temperature.
- The temperature at the ball valve outlet needs to be checked every six months.
- The volume of water stored in the tank needs to be kept to one day’s usage.
- If you have more than one tank, link them together so water flows through all of them and there is no stagnation.
- Fit the storage tank with a tight-fitting lid and air vent to prevent dirt and contamination.
If you have any issues or concerns about the water quality, you must disconnect your water supply immediately and take action.
Water tank cleaning
However well designed they are, cold water storage tanks will always be at risk from contamination. If contamination does get into the water tank and is allowed to build up over time, it will provide a breeding ground for legionella and other bacteria. Water tank cleaning and disinfection is therefore a necessity to prevent any contamination. Water tank cleaning is not a legal requirement, but annual water tank inspections are. The inspections will look at the condition of the tank as well as test the quality of the water and will identify if there is a need for cleaning and maintenance.
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