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