Regulations
Here you can find more information about water and wastewater regulations that you must follow.
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Water supply regulations
Understand more about the requirements and aims of the Water Supply Regulations 1999.
Plumbing systems
This section explains the requirements for installing a new plumbing system under the current water regulations.
Reduced Pressure Zone (RPZ) valves
Here you can read our approach to RPZ valves, devices that protect against potential backflow.