Installation: FAQs

What should be considered when designing a plumbing system?

When designing a compliant plumbing system a number of factors need to be considered, including but not limited to:

  • Avoiding the risk of contamination or damage resulting from the environment in which the system is to be installed or due to the design itself.
  • The required and attainable supply pressure and other operational parameters
  • User expectations and whether these are achievable
  • Suitability of water fittings for use
  • Providing appropriate, adequate backflow protection.
  • Water efficiency
  • Limiting waste.

Useful sources of information include BS EN 806 and BS 8558




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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.

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