Enduratank 3500 litre Fluid Category 5 Tank is fitted with a with a Type AB-Air gap weir overflow for complying with the Water Supply (Water Fittings) Regulations 1999. The weir overflow (Fluid 5) which is a non-mechanical backflow prevention for inlets up to 32mm. Many water authorities demand that water storage tanks connected to the mains water supply have suitable measures to protect the mains from contamination. The AB Airgap is designed to prevent the inlet to become submerged and stop the water within the tank contaminating the mains water supply should there be a backflow pressure drop in the mains.
These tanks are made from rotationally moulded polyethylene, fitted with a cowled overflow to prevent ingress of light into the tank and a stainless steel mesh to prevent ingress of debris into the tank. Larger weirs can be specially made for larger inlets.
This arrangement of fittings for compliance with the Water Supply (Water Fittings) Regulations 1999 in England and Wales and the technically identical Scottish Water Byelaws 2004. The installation and use of cold water storage cisterns and sectional tanks connected to the public water supply must comply with these conditions. This potable tank is WRAS (Water Regulations Advisory Scheme) approved, insulated options are available if required. This break tank is supplied with the screened overflow and weir installed to meet the requirements of WRAS Fluid Category 5 Break Tanks, also known as a Fluid Cat 5 break tank, Fluid Cat 5 tank and Fluid Cat 5 booster set tanks.
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