kandgmitchell Posted November 14, 2023 Share Posted November 14, 2023 On 09/11/2023 at 20:05, Gus Potter said: "Can below ground PVCu drainage pipe or fittings be installed for above ground sanitary pipework? Below ground PVCu drainage pipe and fittings can only be used underground, they are not manufactured to the correct standards or material formulation for above ground applications, Building Regulations Part H state that PVCu materials for above ground gravity sanitary pipework should be to BS EN 1329" Below ground pipes tend to be brownish. This does raise the question why? BS EN 1329 has been withdrawn so that's out of date. Why can't you use underground pipe above ground? The pipe itself must be made to the same size as above ground because they have to fit to each other. The underground may not be as UV stable as the above ground but using it inside that'll not be an issue. You would expect underground pipe if anything, to be stronger than above ground as it's normally buried. So that leaves it being the wrong colour. The Building Regulations are quite clear in Regulation 8 that Part H (along with most parts) only relates to reasonable health and safety matters. I can't see having a brown internal svp would have an adverse impact on anyones H&S. Just musing........... 1 Link to comment Share on other sites More sharing options...
Gus Potter Posted November 18, 2023 Share Posted November 18, 2023 On 14/11/2023 at 20:57, kandgmitchell said: This does raise the question why? BS EN 1329 has been withdrawn so that's out of date. Why can't you use underground pipe above ground? Fair enough.. but it's primarily the fittings, bends couplings etc and the glue if you are using it. The main thing in my view is that if you are using above ground fittings and brown pipe that you may sure the seals / glue are compatible. On 14/11/2023 at 20:57, kandgmitchell said: BS EN 1329 has been withdrawn so that's out of date. What's the latest code we should be using? .. and what parts of that have been ammended relate to what we are talking about? Link to comment Share on other sites More sharing options...
dpmiller Posted November 19, 2023 Share Posted November 19, 2023 surely "above ground" means exposed to sunlight? Link to comment Share on other sites More sharing options...
saveasteading Posted November 19, 2023 Share Posted November 19, 2023 On 14/11/2023 at 20:57, kandgmitchell said: can't see having a brown internal svp would have an adverse impact It definitely fails in sunlight. It goes white and brittle. Perhaps it fails but more slowly in internal air/ daylight. It really isn't worth using it above ground. Why the fuss? Link to comment Share on other sites More sharing options...
Conor Posted November 19, 2023 Share Posted November 19, 2023 No issue using brown pipes above ground, as long as they are not exposed to light. Most of my internal soil pipe work is brown as there was a better range and availability of fittings. BCO happy as well. 1 Link to comment Share on other sites More sharing options...
kandgmitchell Posted November 20, 2023 Share Posted November 20, 2023 Sorry, meant the original BS 1329 has been withdrawn you need to use the latest 2020 version. It however is behind a £276 paywall so I can't tell you what has changed. I'm not convinced that manufacturers don't use the same extruding machines for both brown and grey so wall thickness, o/a dia etc are the same but just tint the plastic a different colour....... Link to comment Share on other sites More sharing options...
saveasteading Posted November 20, 2023 Share Posted November 20, 2023 I've mixed and matched before. Only for temporary drains I should emphasise. They have fitted. Had more issues with ( cheap) brown pipes simply not fitting each other, but they go in eventually. Link to comment Share on other sites More sharing options...
passivemic Posted June 27 Share Posted June 27 On 10/11/2023 at 00:09, bmj1 said: We did internally but using the blue acoustic soil pipes, to avoid hearing anything They are quite expensive. Are you happy with the result? Or did you have to box in with acoustic plasterboard etc. as well? Thanks Link to comment Share on other sites More sharing options...
Dave Jones Posted June 27 Share Posted June 27 On 08/11/2023 at 13:51, iMCaan said: Thank you for the comments. The most concerning are the ones in the living room and in the kitchen. The third is in the garage. All three are in the corners. All three would need boarding up. I suppose my main concern are leakage and the noise from while the waste/water gushes down the vertical soil pipe? The other concern is a leakage, which would cause a stinking damage. very poor design in that case. Was an architect employed to do the drawings ? They are very easy to lose in a slightly wider stud wall. Needs thinking about at the foundation stage to minimise the disruption. Link to comment Share on other sites More sharing options...
bmj1 Posted July 3 Share Posted July 3 On 27/06/2024 at 10:32, passivemic said: They are quite expensive. Are you happy with the result? Or did you have to box in with acoustic plasterboard etc. as well? Thanks We aren't yet in - ask me again in a few weeks Link to comment Share on other sites More sharing options...
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