External waste runs to hopper

If the drain is getting replaced then that can all be sorted I would think.

I think it wasn't all tied in together simply due to the way they put the drain pipe in, don't think you'd be able to get a horizontal pipe into that with it at that angle.

Thanks for all the help, it's much appreciated.

The gully below the kitchen window was partially blocked with mortar. I vacuumed it out, cleared out the mortar with a few light taps of a chisel and then removed a mini fat-berg from the p-trap. After a good clean it looks in good condition and now drains freely.

My current plan from all the posts above is to run a 68mm vertical pipe on the right hand side, taking in the two 40mm wastes from the bathroom, the new 32mm condensate from the boiler, and the 40mm waste from the kitchen. Run that underground into a new back inlet gully and p-trap. Then connect the new gully and p-trap to the existing pipe (the pipe connected to the existing clay gully and p-trap which I'll dig up and remove).

My only issue is whether the existing pipe is deep enough to allow a run to the right hand side whilst maintaining the fall. As you can probably tell I'd like to avoid messing with the chamber under the drain cover.

Thanks again.

Oh, I'm not sure if the previous owners installed the now removed decking after the dodgy pipe but I guess they didn't want to tie in the bathroom wastes into the kitchen waste in case of backing up?

Madrab said:

Not sure what type of hopper you were meaning @Hugh Jaleak?

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I was referring to a rainwater hopper, not a term I hear used much with regard to a Gulley. I am also noting various recommendations to use 68mm downpipe, however with no method on the market to my knowledge, for connecting wastes to 68mm rainwater pipe, I am curious to know how to make watertight connections where the lower pipes join?

Hugh Jaleak said:

I was referring to a rainwater hopper, not a term I hear used much with regard to a Gulley. I am also noting various recommendations to use 68mm downpipe, however with no method on the market to my knowledge, for connecting wastes to 68mm rainwater pipe, I am curious to know how to make watertight connections where the lower pipes join?

Click to expand...

I was just meaning to drop them into a hopper. I had no idea it wasn’t allowed

Ian H said:

I was just meaning to drop them into a hopper. I had no idea it wasn’t allowed

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Bravo for holding your hands up, most here would bullshit their way out of it, we can't know everything
. Sick to death of know it all's on here that can do no wrong, making others poster wary of looking a fool or being shot down.
Rant over!

Hugh Jaleak said:

for connecting wastes to 68mm rainwater pipe

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7

Having only ever needed to glue 50mm pvc into a 68mm connection twice, it had never occurred that there wouldn't be a 40mm waste adapter. Thanks for that @Hugh Jaleak , should have checked.

Guess i revert back to my 50mm original post

I dont think waste to 68mm connectors are made, simply to try and discourage waste connections into downpipes, and prevent sullage from entering the rainwater drainage system. 50mm is probably the way to go, put an AAV on the top of it to prevent any siphoning should the pipe run full.

I spent a while searching for 50mm to 68mm reducers and came across similar discussions on why they aren't available. I'd prefer to use 50mm so that I can match the existing down pipes and fascias in white.

I've marked up the original photo with what I plan to do...


The bathroom wastes are a bit of a faff because I don't want to risk disrupting the internal joints as they are inaccessible. Is the AAV ok in this configuration, does it just need to be above the height of the two bathroom wastes? It can be moved higher, if required.

The back inlet bottle gully requires side access and the only two I can find are the Marley UG50 and the Osma 4D900/4D901, the Marley seems to have 50mm boss upstands which would make the connection to the kitchen waste a bit simpler (no reducer required). And I've no idea what lies beneath (p-trap from what I can feel down there) but at a minimum I'll need a 110mm to clay pipe connector.

Thanks again for the help, hopefully it'll help others in future.