Sub-base and existing drain pipes - How to deal with existing buried pipes

Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting rid of water.
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Alpaca
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Joined: Sun Aug 04, 2019 3:28 pm
Location: UK and France

Post: # 117661Post Alpaca

Had a search on the forum but couldn't find the answer to this.

We're about to lay a gravelled area along the edge of the house, where I know there are quite a few buried PVC pipes (both for foul water and rainwater). I'm pretty sure the pipes are not buried hugely deeply and are not encased in concrete. Besides being a bit worried that they are not protected enough from heavy loads on the surface, I also don't want to squash the pipes when I compact the sub-base. Am I worrying too much, or should I be trying to put a concrete layer around them? If so, what's the best order to tackle things? Dig out the whole sub-base first, or try to find and just dig around all the pipes first so that I've got trenches to pour concrete into.
Alpaca

jwill
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Joined: Mon Feb 08, 2016 6:00 pm
Location: leic

Post: # 117675Post jwill

How deep are they below where top of sublease will finish?

Tony McC
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Post: # 117691Post Tony McC

What's the purpose of the planned sub-base? Are you eventually going to be running vehicles over the buried pipes?
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