Why do you have to install servicing valves and drain taps?

To minimise waste when maintaining or replacing water fittings (including water using appliances) servicing valves should be installed as close as practicable to any part of a plumbing system performing a specific function.

Similarly to minimise waste when draining down systems not in use, servicing valves and drain taps should be installed as close as practicable to any part of a plumbing system performing a specific function.

Servicing valves should be labelled to indicate what parts of a plumbing system they control.

In the case of inlet valves supplying toilet or urinal flushing cisterns and cold water storage, consideration should be given to pressure surges resulting from operation of the servicing valve.

Please note: drain taps should not be buried or covered with soil, or installed so that they are submerged, or likely to be submerged.