cutting soil pipe

Hi, next job on SWMBO's list of tasks to stop me having a weekend is a new bog. The existing one has an outlet almost at floor level. The soil pipe runs across the littlest room about a fingers thickness from the floor and the loo outlet enters via a "Y" in the middle ( crap description probably but I can't do drawings on this bloody thing that look anything like they're supposed to). The new throne has its outlet about 8" from the deck and it's close coupled to its cistern. So , finally, as the new loo is going to be closer to the wall and I'm going to use an elbow, the "Y" piece of the soil pipe is going to need to be turned 90 degrees from the front to the top (if you see what I mean). It would appear to be solvent welded so I'm going to have to cut it then rejoin it but how? Presumably it'll need to be pretty square and I can't see how to get a saw in as it's tight to the wall as well as the floor. What about joining it back together - is there a rubber tube / jubilee clip arrangement or will it require 2 couplings. Tried to interest several plumbers in the job (like others I ain't too keen on the contents of the pipe) but the only one who quoted wanted 40 / hour and said to reckon on 5-6 hours - my arse! Thanks for reading this far ( Tolstoy was an amateur at long tales) Richard
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Frisket wrote:

I cut such pipes with a ordinary flat woodsaw, toolbox sized. If space is limited then you may need to damage the plaster of the wall as well or try a padsaw but that would be hard on the hands. Always try to solvent weld the replacement as it will give you less worries long term. You can get quite small cans or tubes of solvent weld glue. Assemble dry and mark alignment with scratches first. Make sure the surfaces to be welded are first cleaned with the propriety cleaner or acetone or whatever. You can get flexible couplings from builders/plumbers merchants to cope with any situation but they tend to be quite pricey as they are meant as problem solvers where there aren't any alternatives.
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