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Point of use protection is backflow prevention provided at the point where water is being used. For example, at a tap, washing machine, WC or trough
Zone protection is a backflow prevention device or arrangement installed in addition to all existing point of use backflow prevention within a premises. Its purpose is to prevent backflow from one part of a plumbing system to another part of a plumbing system in the same property. For example, between different multiple buildings on one site which are commonly found on farms, manufacturing sites and hospitals.
Whole site protection is a backflow prevention device or arrangement installed in addition to all other existing backflow prevention within a premises. Its purpose is to provide additional protection to safeguard public water supplies to neighbouring properties.
Please note: the provision of zone and/or wholesite backflow prevention does not relax the requirement for any other required backflow prevention provision within premises.
Uncontrolled if downloaded. This is informative, non-statutory guidance and intended for general guidance purposes only; it is subject to change.
Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.