Fitting recessed mixer shower

[david1976]

I want to fit a recessed mixer shower into my bathroom wall which backs onto the upstairs landing.

It's a 1930s house - wall is made of blocks - and I was thinking instead of just chasing out a cavity in the bathroom for shower, cut a hole right through. Then fit a small door or panel in landing wall which would provide access to back of mixer for cleaning / maintenance, plus I was thinking I could have isolation valves in the pipes here too.

Is this a sound plan? What kind of support (if any) would I need after cutting the hole which I guess would be about 200mm square or there about.

Thanks

 

[plumbitright]

Simply..... No. That's a terrible idea on so many levels. For heavens sake, it's people who think like this that cause trains to crash and boats to sink.
A mixer valve requires a solid support. They do not require isolation valves and how in the world would you waterproof the tiling with a 200 mm square hole behind it unless you were lucky enough to be placing the valve directly in the center of a large tile, which would still be a lousy idea. Why would you want an access door in the middle of the landing wall?
I am constantly undoing these types of do it yourself bodges for people who move into houses and need things done correctly.
Incidentally, flush mixer valves are all serviceable from the front.

 

[david1976]

Thanks for the advice.

For heavens sake, it's people who think like this that cause trains to crash and boats to sink.

That's a bit harsh.

 

[ChrisOxford]

That's a bit harsh.

Yes! I thought your idea was rather clever... but then I've never installed a concealed mixer. It's people who think like this that have come up with useful innovations too

Surface mounting (with concealed pipework) is a lot easier to DIY well and can look neat enough if done the right way.

 

[ChrisOxford]

They do not require isolation valves...

Why's that, out of interest?