Just got a £3.99 shower waste from Screwfix, and it only comes with one
big grooved rubber washer. Does this go below the shower tray, and if
so, what (if anything) seals between the chrome bit and the top of the
tray? I somehow don't think I'd get a very helpful answer from
I think I'd better leave the trap easily accessible just to be safe.
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I bought a sink waste from B&Q a while ago that came with one grooved
washer as yours did. The instructions said that the washer should go at
the top between the sink and the chrome bit and use plumbers mait on the
bottom. I did this but it looked crap as the washer raised the chrome
bit too much. I took it all out again, put some plumbers mait around
the chrome bit and put the washer at them bottom and it looked better
and worked fine (no leaks!)
Mine looked crap with washer on top. So I did washer on the bottom and
silicone sealant on the top (as well as generous silicone underneath on
washer as well). That was 5 years ago and last time I looked under the
shower (during decorating, not just as something to pass the time) all was
fine and dry.
I fitted something similar a while ago.
- Bead of silicone sealer around the waste, then insert into tray.
- Small bead of silicone sealer on underside of tray around fitting
- Add washer
- Another small bead of sealer
- Add nut and tighten
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