General: Overview

How do you comply with the Water Supply (Water Fittings) Regulations/byelaws in Scotland?

We all take it for granted when we turn the tap on there will be water and it will be safe to drink.

The water fittings regulations/byelaws exist to help ensure this is the case. Their purpose is to prevent customers plumbing systems contaminating and wasting drinking water supplies, an important public health measure to protect both those within the premises and the wider community. 

The need for everyone to have access to clean, safe drinking water is why it is so important for those responsible for water fittings to ensure plumbing systems are compliant with all, not just some of the applicable parts of the regulations/byelaws.

  1. Water fittings themselves have to be compliant 
  2. Where, and the way in which water fittings are installed has to be compliant
  3. How plumbing systems are used and maintained has to be compliant 



Examples of measures which could be taken

Water fittings, including water using appliances, contaminate or waste drinking water supplies 

Ensure water fittings are of an appropriate quality and standard as well as suitable for installation

Proposed changes to plumbing systems contaminate or waste drinking water supplies

Notification this is a simple and essential check which will highlight potential contamination or waste concerns

Consider using an approved contractor

Existing plumbing system installations: changes to, or the way they are operated contaminates or wastes drinking water supplies

Be aware of the legal obligations imposed by the water fittings regulations/byelaws, including the need to notify 

Ensure plumbing is installed and maintained in accordance with the manufacturer’s installation instructions and any relevant regulatory requirements.

Use the installation guidance published by the local water undertaker and Water Regs UK

Consider using an approved contractor

In the case of specific installation queries contact the local water undertaker for advice 



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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.