Moving WC to adjacent wall

[rsb123]

A family member who does mostly restaurant kitchen plumbing is helping up with a bathroom remodel on a newly purchased house. The trickiest part is moving the WC to the adjacent wall, so I need help to advise him of the most practical solution (or else I'll be calling in an expert!).

Here's the plan:



We haven't completed purchase yet, so not sure if soil stack pipe is cast iron or plastic. So my questions are about 3 scenarios:

- If it's a cast iron pipe, how do you make the branch face the other way? Saw out the branch and weld in new one?

- If it's a plastic pipe with branch glued in, do you cut out the branch and fit a new one, or somehow make it do a U-turn back toward the other wall?

- If it's a plastic pipe with branch not glued in, we can just spin it 90 degrees right?

Would a WC like this give us enough space behind it to do a 90 degree bent pan connector (we don't want to channel out a solid wall).


I just found a "Hepflex" soil/pan connector which looks interesting. Anyone have experience using them? Looks a bit flimsy for a permanent install to me.

thanks!

 

[AWheating]

if its cast iron it would be best to cut at ground level and replace entire stack.

if its glued plastic then you will need to cut below branch repipe new branch

if its push fit then you should be able to twist the branch around 90* providing there is not wastes conntect into side of branch

you should be fine with a standard 90* pan connector if height is about right.

 

[dontknowitall]

If the soil stack is inside the house 99% of the time it will be plastic and not cast iron.

 

[WaterTight]

Why is that?

 

[kay-jay]

dimensions on that toilet seem fine for a standard bend. if you have difficulty then a flexi extendable pan connector should do the trick

 

[rsb123]

FYI, the house (terraced) was built in 1976, which is after PVC was popularised in the 60s, so I'm hoping PVC.
thanks

 

[stevetheplumber]

id say 76 could be either if its a mass builder house ie on an estate theres a good chance its plastic

 

[dontknowitall]

Why is that?

Because!!!

🙂

(Hope that's not too rude and is taken the way it's meant to be!!!)

It's just that I've never come across cast iron soil pipes inside a house - plenty outside but not in.

 

[Kev the gas]

I have!!, quite often actually down south, cast iron internal waste pipe rocks !!

Also have come across an asbestos type of soil pipe as well, funny never got those jobs when the price was submitted :tongue3:

 

[AWheating]

yep asbestos was common in certain areas especially in post war smiths type housing, the stack would normally be cast iron till branch and then asbestos to vent through the roof.