I have to bury a 1/2" BSP (using washer) and a compression joint inside a (solid) wall, i.e. basically, no access from behind etc. (BSP compression elbow behind bar mixer), I've done this before, no problems, but I just wondered, what could I do to make leaks "impossible". e.g. thread sealants, bandages etc. Any-one else bother with this, or do we all just hope its all OK ? Cheers, Simon.
I would use jointing compound and look for any leaks before closing the hole.
On 6 Nov 2006 07:10:49 -0800 someone who may be "sm_jamieson" wrote this:-
Screwfix (and no doubt others) offer something which allows one to bring 15mm pipes out of the wall and into a compression fitting, onto which bar mixers fit. Seems like a good way of avoiding a joint in the wall to me.
You could slather it totally in chemical metal afterwards.
Pressure test it first. If it's to be driven from a shower pump then mains pressure should do, if it's to run at mains pressure then it should be tested with a pump which can deliver about half as much again as the mains is likely to. You may be able to hire one (they're > £100 to buy) but if you don't do at least test at mains with hot water.
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