Pocster Posted March 10, 2020 Share Posted March 10, 2020 I assume the first drawing is better i.e. try to have 'gentle' bends rather than 90 degrees.... Link to comment Share on other sites More sharing options...
joe90 Posted March 10, 2020 Share Posted March 10, 2020 Yes, anything to avoid blockages and bends do slow the flow a lot . Is there any reason you can’t do this. Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 7 minutes ago, joe90 said: Yes, anything to avoid blockages and bends do slow the flow a lot . Is there any reason you can’t do this. Maybe - the problem is my WC is near the in ceiling drain , so there’s not much ‘room’ to do a gentle fall . Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 10, 2020 Share Posted March 10, 2020 27 minutes ago, pocster said: I assume the first drawing is better i.e. try to have 'gentle' bends rather than 90 degrees.... Might you mean a Rest Bend? 87.5 degrees.... me being an expert and all that ? 2 2 Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 1 minute ago, AnonymousBosch said: Might you mean a Rest Bend? 87.5 degrees.... me being an expert and all that ? That looks good - not sure it exists in solvent weld - will check ! Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 10, 2020 Share Posted March 10, 2020 Ahhh, sorry you meant soil pipe.... might this link help? Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 Just now, AnonymousBosch said: Ahhh, sorry you meant soil pipe.... might this link help? Think this is it https://www.drainagecentral.co.uk/110mm-PVCu-Solvent-Weld-Soil-Pipe-Bend-925-Degrees-Double-Socket-BS473?gclid=EAIaIQobChMI-sSWsK-Q6AIVVODtCh3z1gt4EAQYCiABEgIY_vD_BwE Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 10, 2020 Share Posted March 10, 2020 As an aside, why did you choose solvent weld? I nearly did, but I haven't got the guts - or the experience. Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 Or this ? ouch at the price !! https://www.mytub.co.uk/110mm-solvent-92-5d-rest-bend-only-ss705-product-570233 Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 1 minute ago, AnonymousBosch said: As an aside, why did you choose solvent weld? I nearly did, but I haven't got the guts - or the experience. Because it’s all in a ceiling . Welded won’t leak .... ? Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 10, 2020 Share Posted March 10, 2020 Yes, mine has to go through a wall and a ceiling - thought I'd make all my mistakes with push fit first and then consider solvent weld. 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 Just now, AnonymousBosch said: Yes, mine has to go through a wall and a ceiling - thought I'd make all my mistakes with push fit first and then consider solvent weld. Just do solvent weld . Dry fit everything. You’ll be fine . Better to be safe than sorry ! Link to comment Share on other sites More sharing options...
joe90 Posted March 10, 2020 Share Posted March 10, 2020 I have used push fit 110 in my ceilings, if it’s good enough for under ground?.??? Link to comment Share on other sites More sharing options...
Jeremy Harris Posted March 10, 2020 Share Posted March 10, 2020 All of our internal soil pipe is push fit. It's more tolerant of a little bit of movement and vibration than solvent weld. Link to comment Share on other sites More sharing options...
Pocster Posted March 10, 2020 Author Share Posted March 10, 2020 (edited) Sure guys ; push fit at the pan etc. But going into the soil pipe I think welding is best ( in this situation) Edited March 10, 2020 by pocster Link to comment Share on other sites More sharing options...
Temp Posted March 10, 2020 Share Posted March 10, 2020 Some grey and black solvent weld pipe feels less strong than the traditional brown plastic pipe. Is the grey/black rated for underground use? Link to comment Share on other sites More sharing options...
Temp Posted March 10, 2020 Share Posted March 10, 2020 (edited) Why do they say solvent weld should be avoided below ground on this one?.. https://www.screwfix.com/p/floplast-long-radius-bend-87-5-110mm/81100 Quote FloPlast Long Radius Bend 87.5° 110mm (81100) Connects to 110mm ring seal sockets for underground installations and fittings. (If necessary, it can be connected to a solvent weld fitting, however this should be avoided on underground applications). Edited March 10, 2020 by Temp Link to comment Share on other sites More sharing options...
Onoff Posted March 11, 2020 Share Posted March 11, 2020 6 hours ago, Temp said: Why do they say solvent weld should be avoided below ground on this one?.. https://www.screwfix.com/p/floplast-long-radius-bend-87-5-110mm/81100 Because it can't flex with ground movements. Whereas push fit can. Link to comment Share on other sites More sharing options...
Pocster Posted March 11, 2020 Author Share Posted March 11, 2020 I can always build a concrete block housing over that short run of black pipe to protect it . 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 11, 2020 Author Share Posted March 11, 2020 8 hours ago, Temp said: Some grey and black solvent weld pipe feels less strong than the traditional brown plastic pipe. Is the grey/black rated for underground use? Website says for use above ground Link to comment Share on other sites More sharing options...
Onoff Posted March 11, 2020 Share Posted March 11, 2020 1 hour ago, pocster said: I can always build a concrete block housing over that short run of black pipe to protect it . Maybe wrap it in something first (thick cardboard?) or sleeve it before concreting so you easily slide it through the concrete block later rather than having to smash the block up. Link to comment Share on other sites More sharing options...
Pocster Posted March 11, 2020 Author Share Posted March 11, 2020 44 minutes ago, Onoff said: Maybe wrap it in something first (thick cardboard?) or sleeve it before concreting so you easily slide it through the concrete block later rather than having to smash the block up. Might try and get planning and build another house over it 1 Link to comment Share on other sites More sharing options...
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