Description

This publication gives guidance to designers and plumbing contractors in the key decisions and requirements around design and installation of hot and cold water supply and sanitary plumbing in a domestic building.  

Scope

This publication covers all the key areas of the topic, including:

• statutory requirements
• design of water supply systems 
• materials selection
• water supply installation
• water heating system selection
• water heating system installation
• sanitary plumbing. 

This publication has a particular focus on producing houses that are energy and water efficient, comfortable to live in and less expensive to run. It includes, for example:

• system design considerations that enhance water and energy efficiency
• materials selection factors including durability and environmental friendliness
• more efficient water heating options such as heat pumps
• information on harvesting rainwater and reusing greywater.