Re routing toilet waste pipe

[Riley]

Evening all,
wonder if one of you might recommend a method for re-routing a toilet waste pipe. Basically I need to move a toilet waste from one corner of a bathroom to the other. Initially customer wanted the loo in one place which ran nicely in line with the joists. Now sadly they have re thought their plan and now the waste will be running though joists. I know with notching and drilling holes we are restricted with the size of a toilet waste. I just wondered if there was a clever alternative to running it on the surface and boxing in or using a macerator?

any thoughts appreciated.

Thanks

 

[SimonG]

Box above the floor or box below the floor.

 

[lame plumber]

u cant put 4" soil thro joists!

 

[Riley]

When you say box below the floor do you mean slice the joist the support it with the boxing?

 

[michael c]

is the toilet to go on an external wall and is the soil stack internal or external? just wondering if you could run external, if toilet is internal wall could you run with joists to external?

 

[Riley]

No I new you couldn't put 4" through the joist. Basically that just leaves me boxed above the floor then. That's fine I just wondered if anyone had an alternative

 

[SimonG]

No below the ceiling in the room below.

Or major structural work to trim out the joists so that it can be dropped under floor. But that's major work, temp supports whislt you cut out joists etc etc. Would need building regs approval I think due to the structural nature of the works.

 

[Riley]

Michael, yes external wall but internal stack. Where customer wants toilet will not run with joists as its the opposite corner to the stack

 

[Riley]

Cheers Simon, yeah that was my thinking too. Sad aint it, I've fitted loads of loos and have never had an issue with joists. Ah well I guess these things are sent to test us.

 

[michael c]

I wouldnt do it but you may still be able to run out and in again if upstairs toilet. I'd rather go with the boxing though, good luck mate