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Post by joinerjohn on Aug 17, 2022 0:27:08 GMT
Hi there, just want to know the legalities ( building regs) of plumbing in a shower tray. My dad wants his bath taking out and a shower tray installing in its place( he's 92 and struggling to get in the bath). His bungalow has a suspended wooden floor. The bath is 700mm x 1650mm long. I have sourced a shower tray 700mm wide x 1600mm long wh8ch seems ideal to fit in this space. What I want to know,us it within regs to plumb the wasters that it exits the house, under the dpm ? His house has a space around 2ft under the suspended floor, and I think the waste could come through about 5" under the dpm to the outside and into an external drain. Can anyone see a problem with plumbing the waste this way ? ( is this against regs etc ?)
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Post by crowsfoot on Aug 17, 2022 8:00:06 GMT
In these modern times of flat "wet-rooms" and "low access shower trays" (it's the size of the step over into the shower tray that's in the building regulations) it's now very common to have a shower waste pump that activates via a "flow switch" when the shower is turned on to get over any back-fall on waste-pipes. However, it sounds like you do have enough depth to get a steady fall on that waste pipe and use gravity to take the waste water away (which is always best)  . Going out under the DPC is no problem. Avoid teeing into another waste pipe is my best advice. I've seen them teed into the whb waste and the shower pump actually displacing water out of the whb trap into the basin when it's running and then on gravity, the waste from the whb going up into the shower tray when the plug is pulled on the whb  !! |
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Post by battle1066 on Aug 17, 2022 20:35:07 GMT
Sound like the tray is the perfect fit so just a good quality trap needed.
Keep in mind strong fixing points for grab handles and seating.
If there any electrical connections this guide can help
The zones are as follows:
Zone 0: Inside the bath tub or shower tray. Any fitting going in this area must be low voltage (12v max) and have an IP rating of at least IP67.
Zone 1: Directly above the bath tub or shower tray to the height of 2.25m from the floor. Products should be IP44 or higher and if the fitting is 240v a 30ma RCD must be used to protect the circuit.
Zone 2: Over the bath tub or shower tray above zone 1. It also covers the area stretching 0.6m outside the perimeter of the bath and to a height of 2.25m from the floor and the area around the wash basin, within a 60cm radius of any tap. Lighting in this area should be at least IP44.
Note: If there is a likelihood of water jets being used in zones 1 or 2, i.e. for cleaning, a fitting rated a minimum of IP65 must be used.
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Post by rocketmanbkk on Aug 17, 2022 21:01:34 GMT
Yep plumb ahead with it.
All the best to your dad.
Even if it was against regs I’d still do it as it’ll make your dads life easier & that’s the main outcome
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Post by tomplum on Aug 18, 2022 14:46:15 GMT
I agree with Rocky, Make it easy for your Dad, sod the regs,,  |
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Post by joinerjohn on Aug 19, 2022 20:39:44 GMT
Cheers lads. There is enough room under the suspended floor to allow a drop on the waste pipe to the drain outside ( no need to T into any existing pipe ) If I go ahead with this, I'll post photos of the work as I go along 😉😉
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Post by tomplum on Aug 19, 2022 20:44:35 GMT
cheers JJ, |
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!!
