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Discuss Drainage connection to threshold drains in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net

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Pisces67

Hi can someone tell me the best way to connect two threshold ACO015 threshold drain to an existing clay gully pot. The drains will do either side of the pot close to the wall. Would it require removal and using plastic fittings? Looking down the gully it appears there might be three sections.
Thanks
 

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ShaunCorbs

ShaunCorbs

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You will have to dig down and replace the pot chamber for the aco one or you will have to run a new drain to each depending on where you want the acos
 
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Pisces67

I'm trying to use the existing gully position, which currently takes rainwater into the manhole. I'm assuming there is a clay bottle trap at the bottom as per the photo (water visible). I need some at sort of adaptation which will allow me to modify the clay gully to take the threshold Drains on either side if the gully.
Is it possible to dig down to the 3rd section (trap) and place a rubber coupler 163mm to 110mm and stick a hopper on top which has two opposite inlets for the two channels drains either side.
 
ShaunCorbs

ShaunCorbs

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Nope looks like you will need to connect into the main drainage
 
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Pisces67

Would the follwing be correct:
Remove clay pot and p trap and replace with plastic p trap. Insert plastic pipe to finished level and place ACO outlet. See pics?
In effect completely remove the gully feature and have ACO drain running continously through with rain water down pipe over grate.
Correct?
 

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ShaunCorbs

ShaunCorbs

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That’s correct dig down and replace the gully /pot
 
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Pisces67

Thanks got there in the end
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Just a thought, before going ahead and digging and disturbing the existing gully, can I take the clay collar off and then insert plastic pipe into the gully which will then alow the underside knockout if the aco drain to sit on top of level with the final paving.
 
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ShaunCorbs

ShaunCorbs

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You could do depending on your finial height and it’s the correct dia
 
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Ben-gee

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You could just put the aco outlet above the gully, it doesn’t need to be joined to it as such.
 
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Pisces67

That's one option, but I assume the clay pot would still be visible?
I have had two quotes for my drive and each quote mentions a p trap as part of the threshold drains that we are discussing. Not quite sure how the p trap would be introduced, I can only assume it means digging out the old one, any ideas?
 
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Ben-gee

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Sounds like it’s not your problem, let them get on with it.
 
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Pisces67

It's my job diy, with help from others, just trying to get ahead of the game and plan materials etc
 

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