Didn't have any decent saw blades, the two i had had snapped. Was using a disc for plastic.
Not solvent welded these pipes, have but them together and sanitary silicone so any future issues unbolt the toilet and all can be pulled apart. Wish I had some fernox stuff but..
Stoopid question, once you have 'glued' solvent weld drain pipe it is not coming apart without a great deal of work.
Someone installed a flexi loo connector that has failed (is leaking at the concertina) so straight replacment isn't possible
Edit - Angle grinder and being very careful. I hate clueless diy wankers.
Also dealing with other peoples poo is fucking disgusting.