The informative guidance published here is intended to illustrate how compliance with the Water Supply (Water Fittings) Regulations, byelaws in Scotland may be achieved. Created in collaboration with water undertakers the intention is to improve this free resource by adding further sections and regularly updating information in response to industry learning

Therefore, it is essential to make sure the latest version is always being used.

This first phase has been developed to answer some of the most commonly asked questions about these regulations/byelaws.

A number of new features have been added, including:

  • various download printer friendly pdf options - all guidance (excluding FAQs) a chapter or page
  • the ability to search
  • page links to other relevant information,
  • 3D images - which users can rotate or zoom in on to get a better understanding of what is required
  • the ability to rate and provide feedback.

We would welcome any suggestions for improvements to our content or useful additions. Don't forget in addition to the online guidance below there are a number of other resources including publications.

If you cannot find the information you require on our website, please contact the local water undertaker. Contact details can be found here.


General Overview

Notification Overview

Regulation 4(1)(a) & 4(2) Overview


Backflow Overview


Installers Overview


B​athroom Backflow Risk

C​old Water Storage


H​ose Union Taps


S​pecific Installation Guidance




W​ater Quality FAQs

Contact Details for Water Undertakers




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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.