Moving clay gully

[Olf]

As preparation for EWI I need to move existing gully by about 25 cm off the wall (roughly marked by red square on the photo)

My current plan is to go with

+ +

 

Is there any easier way?

Here is the current state:

 

I've already found detailed answer to my question 'how to cut the pipe'  https://forum.buildhub.org.uk/topic/24060-how-to-cut-this-clay-soil-pipe/

 

[Nickfromwales]

Can you make it up with a couple of 15° and 30° single socket bends instead of that adjustable 135? They’re not the best things in the world, especially when so close to the surface, as the knuckles are huge. 

[Olf]

2 hours ago, Nickfromwales said:

Can you make it up with a couple of 15° and 30° single socket bends

Existing run is at some fancy angle, adjustable would give freedom to match it.

But that made me think and I should go for round gully, then I can align is as I wish and even 1 fixed bend will do! Unless the top on square one spins?

[Nickfromwales]

1 hour ago, Olf said:

Existing run is at some fancy angle, adjustable would give freedom to match it.

But that made me think and I should go for round gully, then I can align is as I wish and even 1 fixed bend will do! Unless the top on square one spins?

The "top" is usually a separate item which you cut to length, and the trap / gulley sits where it needs to go.

[Dave Jones]

id cut it per the photo then clay to plastic collar and whatever bend you need, there will be some give in the collar as well so easy enough to get it where you want. then haunch it in place with lean mix.