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 Post subject: Shower wastes
PostPosted: Sat Jan 26, 2008 4:55 pm 
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I'm having a combi boiler installed so that I can remove the airing cupboard and install a shower cubicle (as part of a complete bathroom replacement). I cannot run the waste pipe from the shower below the floor and so will have to use an 'easy plumb' shower tray which is raised off the floor. The waste pipe will run along two walls (mostly hidden behind basin vanity unit and bath) before joining the soil stack which is boxed in, in the opposite corner of the room. In order to gain the maximum 'fall', I want to have the waste pipe start as close to the underside of the shower tray as possible.

No problem, some would say, - just use a proper shower waste trap. Problem is, as I understand it, as the shower waste is connected directly to the soil stack, Building Regs will not allow a waste trap with less than a 50 mm seal (or is it 75mm? - I'm getting conflicting advice on this!) and I'm having problems finding a shower waste trap with a seal above about 38mm.

I could use a normal basin bottle trap (no problem with clearance because I'll just cut a hole in the floorboards below the shower tray - but the outlet from a basin bottle trap, fitted to a conventional shower waste, will be a fair bit lower than the outlet from a dedicated shower trap - and hence reduce the 'fall'.

The only thing I can think to do is to fit a specialised shallow shower waste, but then also install a deeper 'running trap' somewhere along the run (probably beneath the bath) just before the pipe joins the soil stack.

Is anyone aware of any shower traps that will have the waste outles immediately below the shower tray - but that also have a deeper 'seal' of at least 50mm or even preferably 75mm? Or anyone have any better ideas for solving the problem?

Kev


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 Post subject: Shower wastes
PostPosted: Sat Jan 26, 2008 9:28 pm 
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Shower wastes have to be at least 40mm pipe, they may not be more than 3 metres long and the trap 75mm


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PostPosted: Sun Jan 27, 2008 1:31 am 
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get a bath easy option

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