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Topic: Sub-base and existing drain pipes, How to deal with existing buried pipes< Next Oldest | Next Newest >
Alpaca
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Posted: 04 Aug. 2019,15:48 QUOTE

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.


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jwill
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Posted: 08 Aug. 2019,16:43 QUOTE

How deep are they below where top of sublease will finish?
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Tony McC
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Posted: 13 Aug. 2019,19:30 QUOTE

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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ruler

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