Specific Installation Guidance



Stop valves 

The stop valve to be used by customers should be installed on the supply pipe in a readily accessible location either inside or immediately outside the premises. 

For ease of operation and to prevent any unnecessary delay in isolating the water supply, only spherical valves with an integral operating handle or lever should be used as stop valves.

In the case of properties with multiple occupants, such as a block of flats, in addition to the customers own stop tap, a stop valve for maintenance or communal use should be installed. 


Please note: the illustrations above are examples of acceptable locations for stop valves. Whilst not shown other requirements apply, including but not limited to the installation of drain taps, servicing valves and backflow protection. 

For further information contact the local water undertaker.



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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.

Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.