Fitting shower valve in 3" stud wall
 

Hi all

Challenge of the day. I went to fit one of this in wall shower thermostats. Turns out the wall is only 3" stud and the valve is just under 3" deep. The valve body has 2 fixing holes to attach it with.

I tried bolting 2 "L" shaped brackets to the back and the screwed these onto the studs. It works but the valve body is not secure. It wobbles back and forth and left and right. I stuck some timber to the plasterboard behind the valve which stabilised it a bit but still it is not very stable.

I guess if I can cut the Hardie backker board with a tight fit around the valve (bit challenging) and mastic the front face to the wall it would be more stable but.... All seems a lot of "Ifs and buts" and would much rather get it stable now.

Any ideas?

Thanks

Lee.

Fitting shower valve in 3" stud wall
 

On 20/05/2018 08:30, wrote:
Hi all

Challenge of the day. I went to fit one of this in wall shower thermostats. Turns out the wall is only 3" stud and the valve is just under 3" deep. The valve body has 2 fixing holes to attach it with.

I tried bolting 2 "L" shaped brackets to the back and the screwed these onto the studs. It works but the valve body is not secure. It wobbles back and forth and left and right. I stuck some timber to the plasterboard behind the valve which stabilised it a bit but still it is not very stable.

I guess if I can cut the Hardie backker board with a tight fit around the valve (bit challenging) and mastic the front face to the wall it would be more stable but.... All seems a lot of "Ifs and buts" and would much rather get it stable now.

Any ideas?

Thanks

Lee.


Yes, get a surface mounted valve.

Fitting shower valve in 3" stud wall
 

GB wrote:

wrote:

I went to fit one of this in wall shower thermostats. Turns out the
wall is only 3" stud Any ideas?

Yes, get a surface mounted valve.

I managed to fit a flush Mira Excel in a 2.5" paramount board wall.

Fitting shower valve in 3" stud wall
 

Thanks Andy. How did you attach it?

Fitting shower valve in 3" stud wall
 

Fitting shower valve in 3" stud wall
 

Thanks Andy. The plastic shoe you mention, did that come with the valve?

Mine is similar to this but with one 2 holes either side of the body to attach it to

Fitting shower valve in 3" stud wall
 

Fitting shower valve in 3" stud wall
 

On 20/05/2018 08:30, wrote:
Hi all

Challenge of the day. I went to fit one of this in wall shower
thermostats. Turns out the wall is only 3" stud and the valve is just
under 3" deep. The valve body has 2 fixing holes to attach it with.

I tried bolting 2 "L" shaped brackets to the back and the screwed
these onto the studs. It works but the valve body is not secure. It
wobbles back and forth and left and right. I stuck some timber to the
plasterboard behind the valve which stabilised it a bit but still it
is not very stable.

Normally I find that some ply "plates" of the appropriate thickness
(i.e. may need combinations / layers of different plys), stuck to the
inside of the plaster board at the back of the wall, then gives a solid
surface you can screw the valve to.

Plumbing it up in copper also helps make it more rigid.

I guess if I can cut the Hardie backker board with a tight fit around
the valve (bit challenging) and mastic the front face to the wall it
would be more stable but.... All seems a lot of "Ifs and buts" and
would much rather get it stable now.

Any ideas?

I did one recently with the ply backer, and found that was more than
solid enough without needing to worry about supporting it from the
front. (there was a chrome plate on mine that then sat over the tiles,
and which would be siliconed in place. Hence you get some extra support
from that if needed.


--
Cheers,

John.

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Fitting shower valve in 3" stud wall
 

Or a lot of araldite and hope you never need to get at it!
Brian

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"GB" wrote in message
...
On 20/05/2018 08:30, wrote:
Hi all

Challenge of the day. I went to fit one of this in wall shower
thermostats. Turns out the wall is only 3" stud and the valve is just
under 3" deep. The valve body has 2 fixing holes to attach it with.

I tried bolting 2 "L" shaped brackets to the back and the screwed these
onto the studs. It works but the valve body is not secure. It wobbles
back and forth and left and right. I stuck some timber to the
plasterboard behind the valve which stabilised it a bit but still it is
not very stable.

I guess if I can cut the Hardie backker board with a tight fit around the
valve (bit challenging) and mastic the front face to the wall it would be
more stable but.... All seems a lot of "Ifs and buts" and would much
rather get it stable now.

Any ideas?

Thanks

Lee.


Yes, get a surface mounted valve.

Fitting shower valve in 3" stud wall
 

Whats on the other side of the stud wall? Can you put anything on the other side of the wall to Screw the valve into? I fitted a Grohe rapio T valve into a standard stud wall cavity but using 18mm ply on the other side of the plasterboard (which was conveniently in a built in wardrobe). Some photos here (but they dont show the other side of the shower mixer) https://photos.app.goo.gl/sA2NiuJJcfZZXbLq8

Fitting shower valve in 3" stud wall
 

Unfortunately it is my daughter's bedroom and that bit of the wall is in full view ie not behind a wardrobe or anything

Fitting shower valve in 3" stud wall
 

Wrote in message:
Unfortunately it is my daughter's bedroom and that bit of the wall is in full view ie not behind a wardrobe or anything


Time she had a new shelving unit...
--
Jim K


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