How deep should the trench be for new water service pipes?

There is a minimum and maximum depth at which service pipes should be laid:

Minimum depth is 750 mm
Maximum depth is 1350 mm.

If an installer wishes to install a service pipe either deeper or shallower than these depths they must notify the local water supplier for permission.

Important note: The gas service should be at 600mm to ensure separation from the water service pipe.

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