Pete Posted February 28, 2020 Share Posted February 28, 2020 I have two orange waste pipes sticking out of the slab for the en-suite bathrooms. I have to put a solvent 110mm boss connector https://www.screwfix.com/p/floplast-sp583g-short-boss-pipe-grey-110mm/17138?tc=HB7&ds_kid=92700048793290397&ds_rl=1249404&gclid=EAIaIQobChMIt-WllOfz5wIVmK3tCh2 onto each pipe and was supposed to use gap filling cement but as per the thread title used normal solvent on one pipe (not concentrating) and gap filling cement on another. So my question is will it matter as both pipes seem to have adhered but I cannot test the joint as the drains are not finished, have no access to outside at the moment as I could fill the pipe up with water. I still have access to inside the pipe so could perhaps do something to the inside if it is deemed that the wrong solvent has been used. This joint will be inside a tiled wall when finished so need to get this right, may be stop daydreaming when doing important jobs!!TIA Link to comment Share on other sites More sharing options...
ProDave Posted February 28, 2020 Share Posted February 28, 2020 I have never used gap filling solvent as I have never tried joining two fittings that have a "gap" Perhaps someone else will explain why that is necessary? Link to comment Share on other sites More sharing options...
Barney12 Posted February 28, 2020 Share Posted February 28, 2020 Its only the wrong solvent if you had a "gap". i.e. the pipe and connector were fairly loose which I would have thought was unlikely if its a standard 110mm pipe and connector. In which case you're all good assuming you cleaned and abraded both before applying liberal amounts of solvent weld. Link to comment Share on other sites More sharing options...
Pete Posted February 28, 2020 Author Share Posted February 28, 2020 4 minutes ago, Barney12 said: Its only the wrong solvent if you had a "gap". i.e. the pipe and connector were fairly loose which I would have thought was unlikely if its a standard 110mm pipe and connector. In which case you're all good assuming you cleaned and abraded both before applying liberal amounts of solvent weld. I seem to remember being told to use this gap filling cement when going from the orange U/G pipe to black solvent pipe so I bought some! I always use the solvent cleaner to strip the release coating on the pipe that is used in the manufacturing process so I know I get a good joint. Like I say it seems to have worked ok but just one more thing to worry about as a self-builder! Link to comment Share on other sites More sharing options...
tommyt Posted February 28, 2020 Share Posted February 28, 2020 For drainage I just use wet and dry solvent. Can be used on PVC PVC-U and ABS. Can also get it in blue so you can see which joints are glued but wouldn’t use blue where on show. For PVC/PVC-U or ABS pressure pipe new Installations I always use the correct solvent/cement as we factor in the cure time on a quote but in a pinch to get a customer up and running on a call out we quite regularly use PVC wet and dry solvent on ABS pipe work as the cure time is quicker. Never use ABS cement on PVC pipe though. I think I’m right in saying the gap filling properties of these products is just dissolved pieces of the stated product. Did you test the fitting dry? If the pipe had a good interference fit then I’d say it’ll be ok with just the regular solvent. Link to comment Share on other sites More sharing options...
ToughButterCup Posted February 28, 2020 Share Posted February 28, 2020 17 minutes ago, tommyt said: [...] If the pipe had a good interference fit [...] How will I know I've got one of those when I get one? Link to comment Share on other sites More sharing options...
tommyt Posted February 28, 2020 Share Posted February 28, 2020 14 minutes ago, AnonymousBosch said: How will I know I've got one of those when I get one? Because you have to fight it to get it back off again. Link to comment Share on other sites More sharing options...
Onoff Posted February 28, 2020 Share Posted February 28, 2020 1 hour ago, ProDave said: I have never used gap filling solvent as I have never tried joining two fittings that have a "gap" Perhaps someone else will explain why that is necessary? I've found different makes of "110mm" pipe have different tolerances. Hell, even the same brands seen to vary as this video shows. I made the mistake of running the brown pipe internally when I shoud have used grey: I ended up stuffing the brown pipe into the best fitting grey, using gap filling pvc cement from a tube rather than a brush on can and backed it all up with a smear of CT1 Link to comment Share on other sites More sharing options...
Pete Posted February 28, 2020 Author Share Posted February 28, 2020 52 minutes ago, Onoff said: I've found different makes of "110mm" pipe have different tolerances. Hell, even the same brands seen to vary as this video shows. I made the mistake of running the brown pipe internally when I shoud have used grey: I ended up stuffing the brown pipe into the best fitting grey, using gap filling pvc cement from a tube rather than a brush on can and backed it all up with a smear of CT1 The Bathroom thread, miss it so much!! 1 Link to comment Share on other sites More sharing options...
Onoff Posted February 28, 2020 Share Posted February 28, 2020 2 minutes ago, Pete said: The Bathroom thread, miss it so much!! Not dead, just resting! 1 Link to comment Share on other sites More sharing options...
Pete Posted February 28, 2020 Author Share Posted February 28, 2020 ? People will be hoping it is time to rip it out and start again!! 1 Link to comment Share on other sites More sharing options...
Pocster Posted February 28, 2020 Share Posted February 28, 2020 5 hours ago, Pete said: The Bathroom thread, miss it so much!! You can join my madness. @Onoff is employed as an expert on it now. Link to comment Share on other sites More sharing options...
Pocster Posted February 28, 2020 Share Posted February 28, 2020 5 hours ago, Pete said: ? People will be hoping it is time to rip it out and start again!! It is. That grouting is VERY old now. Also it never lined up behind the cistern - keeps me awake at night..... 1 Link to comment Share on other sites More sharing options...
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