Fluid Category 5 AB Air Gap Break Tank – The installation and use of cold water storage cisterns and sectional tanks connected to the public water supply must comply with Water Supply (Water Fittings) Regulations 1999 in England and Wales and the technically identical Scottish Water Byelaws. In order to meet these requirements, Fluid Category 5 Break Tanks must be used in this instance.

As a Water Regulations solution specialist, we supply a full range of products that provide backflow protection for Fluid Category 5 risks. These are fluids that represent a serious health risk due to the concentration of pathogenic organisms or highly toxic or radioactive substances present within them. This can include animal or butchery waste, faecal matter or other human waste, or pathogens from a range of other sources. Examples of environments that require these solutions include urinals, laboratories, drain cleaning plants, industrial cisterns and bin stores.  More details of this scope can be found here.

Other Fluid Category For Water Tanks

Fluid category 1 Wholesome water supplied by a water undertaker and complying with the requirements of regulations made under section 67 of the Water Industry Act 1991.

Fluid category 2 Water in fluid category 1 whose aesthetic quality is impaired owing to–  (a) a change in its temperature, or / (b) the presence of substances or organisms causing a change in its taste, odour or appearance,  including water in a hot water distribution system.

Fluid category 3 Fluid which represents a slight health hazard because of the concentration of substances of low toxicity, including any fluid which contains– (a) ethylene glycol, copper sulphate solution or similar chemical additives, or (b) sodium hypochlorite (chloros and common disinfectants).

Fluid category 4 Fluid which represents a significant health hazard because of the concentration of toxic substances, including any fluid which contains– (a) chemical, carcinogenic substances or pesticides (including insecticides and herbicides), or / (b) environmental organisms of potential health significance.

Fluid category 5 Fluid representing a serious health hazard because of the concentration of pathogenic organisms, radioactive or very toxic substances, including any fluid which contains– (a) faecal material or other human waste; / (b) butchery or other animal waste; or / (c) pathogens from any other source.

Our fluid category 5 break tank for potable and non-potable water are all fully DWI approved and meet the specific requirements of Regulation 31. WRAS Information and Guidance Note: For cold water storage cisterns and design recommendations for mains supply inlets. Download your copy here.

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