Shower tray - seal to wall AND wetwall ? Or just wetwall

[pfm401]

Hello

We've had a few problems with 2 ensuites we've just had done and I'm hoping someone "in the know" can give me a steer on whether I should insist on certain things or whether it's just alternative ways of doing things!

TO cut a long story short (including trying to justify the shower not working properly because hot and cold feeds were the wrong way round in the house and they hadn't realised - is that really a "thing"??) my main gripe now is that I can see that the wetwalls have been fitted first then the shower tray onto it. I thought (and manufacturers of both wetwall and tray have confirmed) that you're supposed to fit the tray first, seal to back wall then cut wet wall to fit and seal that as well. I can see that hasn't been done because the fitter took the tiles off the wall and damaged the plasterboard underneath as a result, and rather than refit the damaged board did the job I've just said.

Any views on this? Should I insist it is done again or is that over the top? The guy who came to fix the hot / cold issue said it can be done either way and if silicone failed would leak either way, then baffled me with how it "used to be done" but doesn't matter because of flat tray profiles.

Will it leak in time or am I being too bound to manufacturer's recommendation? Am I really within my rights to request a refit and is it worth it - seems a lot to cover a line of silicone (but not if it fails and leaks through my ceiling!)

Pics attached from underneath the tray

 

[ShaunCorbs]

Yep correct (you are)

Should be waterproof plasterboard, tanking then wet panel wall with final seal etc

At the absolute minimum waterproof plasterboard, silicone tray to wall then wet panel wall and final seal

Yep common getting them the wrong way round normally down to not labelling pipes / two people piping up eg one does one end the other does the remaining etc

 

[pfm401]

Thank you. Do you think it’s a bad enough issue to request a refit??

Re hot and cold what I can’t work out is why the fitter didn’t check which was which if it things are switched all the time (at build stage)? I’m trying not to be harsh but it seems basic to me??

 

[pfm401]

Thank you. Do you think it’s a bad enough issue to request a refit??

Re hot and cold what I can’t work out is why the fitter didn’t check which was which if it things are switched all the time (at build stage)? I’m trying not to be harsh but it seems basic to me??

What I mean is, house is now 18 years old, fitter rips out bathroom, connects hot and cold pipes to new shower without checking which is which as “they’re always that way round” (which clearly they aren’t!) why wouldn’t you check then fix if needed??