What sort of drain, how would it be constructed?You can have the oversite concrete lower than the external ground levels and run the pipework on top, but the concrete would need to be laid to fall to a drainage system to stop any ponding.
[code:1][/code:1]Hi, thanks for your advice & help.
What sort of drain, how would it be constructed?You can have the oversite concrete lower than the external ground levels and run the pipework on top, but the concrete would need to be laid to fall to a drainage system to stop any ponding.
Either a gulley going to a storm drain or a pit and sump pump doing the same.
I haven't checked for sure if I can get the fall with the pipes under the oversite but it doesn't look like it.
If the pipes were under there would have to be a gap between the top of the pipe & the bottom of the oversite so this wouldn't help either.
What happens if the drains start on top of the oversite then disappear into it as they go, can you do that?
You need to talk to the BCO about that one.
Cheers.
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