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getting close to D-day now, plenty of building supplies arrived today. quick question about connecting toilet pan to the pipe in the floor. My understanding is that the pans connectors (including the one linked above) slip into standard 110m pipe but what if i plan to terminate at floor level...

@Hugh Jaleak yes i hear you. I know it should technically be above the spill level of the basin but is that assuming you are concerned about the basin water siphoning the basin trap? if you are only really concerned about the toilet siphoning the basin trap (i think in my situation that's the...

excuse the very crude sketch, but this is what I meant by the last comment in my last post ignore the lack of bends and accuracy. Basically if the only purpose of this AAV is to protect the basin trap from pulling when the toilet flushed then is it ok to put it near the pan connector as...

this is more or less what i was imagining, and found an image so thought id post. also something maybe like this if i need to do it a little bit further down the run for space reasons behind the basin itself but I have a question about the height of the AAV. I found images like this...

Yes I will attempt to configure it in such a way that I need only remove a wood panel or two to access it in the event of repairs or failure, thanks

@Hugh Jaleak can the aav, if I fit one, be inside a stud wall? obviously less air flow in there but surely enough to be the little safety net the system set up might need? i would probably choose to put it on a 32mm tee where the bottle trap enters the stud wall or where it leaves the wall to...

@Hugh Jaleak @sircerebus666 so with this type of pan connector, often they are advertised as 'with VENT boss', which got me thinking. If I bring my basin waste to this connection is there likely to be siphoning issues when the toilet flushes which could pull on the basin trap? If so could i...

great thanks. I was looking at different fittings for connecting chrome pipe to plastic as it enter the wall and found this link... https://mcalpineplumbing.com/plastic-chrome-fittings/chrome-plated-brass-fittings/abs3235a-cbc-90deg-bend-cp-brass-x-abs-connector this looked perfect but i...

Yes for sure would use sweeping bends, I just mocked up the sketch quickly for illustration! I may even chase the brick wall 25mm to keep the room pretty much to same width. what fall would you suggest for that basin waste run? would you recommend an easy way to chase into brick without a...

ok @Hugh Jaleak I will try to get the junction as close to the WC as possible if i go that route. 1. do you think from my sketch attached if the proposed junction location is close enough or do you suggest trying closer? About 1m meter into the 110 mm run. 2. The other thing I might...

thanks @JimCrow, yes iv seen them in my search! do you think there would be any risk of the issue @Hugh Jaleak mentioned? backflow and soil build up?

https://www.victorianplumbing.co.uk/round-modern-chrome-basin-bottle-trap-tube-to-floor-pipe-set so this is why i cant connect the basin waste to the boss on a pan connector. cloakroom not wide enough to allow me to build a false wall to hide waste pipe in the wall and missus wont go for...

@Hugh Jaleak nearly word for word that's what a plumbing friend of mine suggested! thanks for your input! what would you suggest as the best parts to use to tee in the 32mm to the 110mm? rubber bung reducer? straight into the 110mm Y junction or add a small length of straight 110mm to the Y...

another issue there is that bathroom design (driven by higher powers...the missus) includes a chrome bottle trap so an anti vac plastic trap is out of the questions. do you think the problem I mentioned is possible that the toilet flush pulls vacuum on basin trap? what about putting a 32mm air...

thanks a mill for your input. My only concern with teeing it into the 4" pipe with a rubber bung reducer or similar is that when the toilet is flushed and flows through the junction might it pull/siphon the bottle trap under the sink? i was hoping to get away without having a durgo on the back...

So i thought about that for sure but i already am very tight for space on the width of this bathroom so cannot afford the space a fase wall would take to hide a 32mm waster pipe. Plan is to either step up 32mm to a 50mm and run it all the way out to the stack alongside the 4" or tee in the...

The background: installing understairs WC wall is adjoining neighbours so drainage to run out to other side of house (about 4.5m to external wall, 6m to 4" stack) hanging sink with this trap https://www.victorianplumbing.co.uk/round-modern-chrome-basin-bottle-trap-tube-to-floor-pipe-set...

i know this thread is old now but this is the option i have decided to go with for a similar issue (hanging basin, chrome bottle trap, no room for false stud wall). Chrom pipe to floor still offers the traditional chrome finish...