Minimum depth underground of domestic drain line

Question

How far underground should the drain line from my house be? I've got a feeling it's too close to the surface. Is there a regulation depth?

Jason · Answer

The top of the pipe should be at least 300m deeper then ground level and bended on pea shingle that is regulations

James · Answer

750mm is the standard depth really! Due to ground frost getting to the services! And other services being at deiffrent regulated depths

Robert · Answer

Depth is governed by manhole depths but there is no regulation depth for drainage but usually the dig is around 450mm if in stalling new ppci’s and manholes

Ryan · Answer

That is all dependent on the job itself the depth isn't the issue it's the fall rate that's important because if the drain is shallow it just needs concrete surround.

Karl · Answer

There is no regulated depth. So if you are to dig be careful! Depending when your house was built it could be clay, asbestos, pitch fibre or plastic.

Evelyn · Answer

Hi they should be a minimum of 600mm 2 foot to stop them freezing.  A manhole should be 500mm, half a meter away from the house.

Minimum depth underground of domestic drain line

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