Hi, I’ve discovered another problem fitting a vanity unit with the waste piping. I have to alter it slightly to move the waste pipe closer to the wall where the unit will sit. After lifting a few boards to expose things there is a T piece and 1 end has compression connector with a little bit of pipe going into the T and coming out it has been solvent welded? After reading up on it the thickness of pipe between solvent and weld differs? The welded end goes into the main junction outside. Any ideas please on the way forward on what to and what to use as I obviously want to avoid leaks. Can I mix both types of pipe and fittings? Thanks Phil
That fitting is a McAlpine multi fit fitting,the compression end will accept solvent weld, push or even copper waste pipe. https://mcalpineplumbing.com/plastic-chrome-fittings/multifit-waste-fittings Would stick with solvent weld fittings rather than push fit, the McAlpine shouldn't give you any problems.
Thanks for that however if I wanted to replace that T piece, I need to get a Mcalpine T or is it specificly a “Multifit” I need? Could I ask another question related to this. It,s currently a 40mm T piece, however I need a 32mm to come out the top end to accept the pipe from the trap therefore how do I get round this?. Can you buy a 40mm T with a 32mm outlet? Also can you get these items from Screwfix? You can guess I don’t do this type of work very often! Thanks Phil
Not sure I fully understand what you've got ? A 40mm compression T to which you want to run 32mm waste pipe ? If YES....... Solvent weld reducer, https://www.screwfix.com/p/floplast-reducers-40-x-32mm-white-5-pack/63577 Solvent weld coupler 40mm https://www.screwfix.com/p/floplast-straight-couplers-40-x-40mm-white-5-pack/58998 Solvent weld cement / pipe glue / reducer into coupling. Glue Short length of 40mm pipe into coupling and connect to 40mm compression fitting. Glue 32mm pipe into reducer PS. T St sell them both singularly
Hi, What is there at the moment is the waste pipe from the bath by a compressed fitting into the 40mm T fitting (this is a solvent weld T fitting) and goes through the other side of the T which is a solvent weld. The waste from the sink goes into the T ind this is solvent welded, however whoever done this has sqeesed some silicone or something as this sink waste pipe is 32mm and the T piece is a 40mm. I think it's abit of a bodged job left from the previous owner. Thanks Phil
Well .........if a 32mm pipe has been siliconed into a 40mm fitting ..... nothing to think about here ...... it’s a bodge for sure May not have leaked for the last 20 years (lucky) but it’s a bodge Rip out and replace and do it properly - nothing to think about mate
Just test fit pipes and fittings before gluing into place Cut pipe ends nice and square, a simple wooden or plastic mitre box and fine tooth saw works well, (not worth buying a plastic pipe cutter) remove burrs and plastic dust before gluing Hope all goes well