Moving a toilet 1.5 metres along the wall

[sjm1]

I am planning to move a toilet about 1.5 metres along a wall. Can anyone let me know if I need to make a new hole for a new soil pipe and run it outside the house and along to the stack that is now 1.5 metres away or can I run a soil pipe internally along the toilet wall and join it to the existing soil pipe and box it in to hide it? Help appreciated!

[dave p]

[you can but you'll have extra 90 deg bends which could block. better to run outside. if not use a t with cleaning eye rather than a 90. then you have access to unblock.

[sjm1]

Great, thanks.