Specific Installation Guidance

B​ackflow protection


U​nderground Storage

This image applies to any underground storage system:

  • S​upplied directly from mains
  • I​nstalled below-ground level, wholly or partially outside the thermal envelope.

Please refer to the Underground Storage Guidance document for further information.





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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.