Backflow Protection FAQs

Schedule 2 paragraphs 2, 14 & 15 [Regulation/Byelaw 3]

Please note: these FAQs are informational only

The information published here is intended to illustrate how compliance with the water fittings regulations in England, Wales and Northern Irelandbyelaws in Scotland may be achieved.

Regulators Specification for backflow

Approved by the Regulators, this is one of three Regulator’s Specifications. It provides descriptions defining different forms of backflow prevention and the level as well as type of protection they provide. It does not however set performance requirements; these are detailed in the Regulators Specification for fittings or appropriate British Standard.

General Backflow Protection FAQs

Specific Installation Backflow Protection FAQs


 Some of the relevant Regulations/Byelaws

  • Backflow protection: Schedule 2 paragraphs 2 and 14 set backflow protection requirements for specific installations, paragraph 15 the requirements for preventing contamination as a result of backflow.




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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.

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