Water and wastewater services for Kent, Sussex, Hampshire and the Isle of Wight
Water regulations

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Water regulations

This section explains the aims of the Water Supply Regulations.

These are requirements for design, installation and maintenance of plumbing systems, water fittings and water-using appliances in domestic and commercial property in England and Wales.

Main requirements

The three main requirements of the regulations are:

  • Plumbing systems, water fittings and water using appliances must be installed and maintained to comply with the regulations
  • Contamination of drinking water must be prevented
  • Advance notice of plumbing installation work must be given.

The regulations are designed to prevent:

  • The inefficient use or waste of water
  • Contamination of drinking water supplies
  • Incorrect measurement of water supplied.
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