Drain through hardcore layer

[VDubDan]

Hi all, another question

I'm running drains through my foundations for the new toilet and such. I was hoping it would simply work out that Id dig them into a trench but as it happens they'll sit at the bottom of the hardcore layer.

I can certainly bed them into pea gravel, but I've not tried covering them.

What's the deal here, and with compacting the hardcore layer? I presume it's a common thing but I can't find any info

 

[Hugh Jaleak]

I am presuming you mean the oversite and not the footings? Bed in peagravel as normal, and cover in concrete to protect the pipework.

 

[VDubDan]

I am presuming you mean the oversite and not the footings? Bed in peagravel as normal, and cover in concrete to protect the pipework.

Cheers Hugh. Yeah, there is a notch in the foundations which is linteled over and then they're under the oversite.

So does the concrete just go straight into the plastic? And Building Control will be ok with that?

 

[Hugh Jaleak]

Times I've seen it done, as long as the drain is covered by the concrete to protect it, and any Damp proofing is not compromised, it should be ok.

 

[VDubDan]

Times I've seen it done, as long as the drain is covered by the concrete to protect it, and any Damp proofing is not compromised, it should be ok.

Hi Hugh, just wanted to respond to say thanks for responding - you made a lot of sense. But BC came round to sign off the drain installs and told me I can just bury the whole thing in a pile of pea shingle, so on the basis that that's much easier and they're happy with it I'll probably go that route

 

[Hugh Jaleak]

Then fair enough. It's what the BCO says that matters, they all have they're own ideas.....

 

[VDubDan]

Then fair enough. It's what the BCO says that matters, they all have they're own ideas.....

Yep, can imagine it's endlessly frustrating for professionals working between authorities etc.

 

[Hugh Jaleak]

Had 2 from the same office with different ideas before now....