I have bits like that with the kit, it is the bits that connect on the
otherside of the plasterboard, the side that does not get seen??. Any
ideas??

OK, so I take it you have something like Screwfix ref 21764, right? If so
do you have something like the conical threaded covers displayed which
screw down the threaded portion of the connector to bear against the wall?
If so, that's a very differerent kettle of fish to what the accessory pack
(56419) contains.... Screwfix don't explain it at all well, but in 56419,
under the chrome cover are large metal plates with holes, which can be
mounted rigidly on the wall using cavity fixing screws etc. Works quite
well. I could send you a scan of the instructions if you want which is
probably easiest to explain as it has pictures - email me.

I've never yet come across or heard about anything intended to fit on the
hidden side of the plasterboard; which is bizarre IMHO. If you have good
access to the back (eg if the other side of the cavity wall has yet to be
fitted) then a large-ish (to spread the load) plate of timber wedged
between the copper pipework and the plasterboard is probably your easiest
and best bet.

David


Hi David

Thanks for your help, the shower mixer I have brought can be found at
http://www.taskersdiy.com/index.cfm?...&n=Bathroo ms
2nd item down. It is similar to the one you have put in your last post. The
main bar has two nuts on that firstly the cone shaped chrome disks screw on
(trim), then a connector (dog leg I think they are called??) fits and
apparently goes through the wall?? It would only just reach the other side
of the plaster board. There is no way of securing, the manual says ridged
pipework will hold in place??. I was going to use flexible pipe as it is
hard to reach..
What you suggest sounds reasonable, so if I get the kit you recommend, I
would use this instead of the trim code shaped thingy and the dog leg
connector??