Some years ago "they" had a copper bearing epoxy mix that was intended to
replace replace solder in joining Cu plumbing parts.

The main drawback is that you have to wait 24 hours before you can pressure
test the joint. It definitely didn't tolerate "playing" with the joint once
the parts were assembled.

The main advantage is that there is no risk of setting the house on fire.

Alternatively, you can use compression fittings or just use plastic pipe
adaptors/joints which use an "O" ring for leak tightness and some kind of
grip to keep the water pressure from blowing the joint apart.

These fitting are bulky but if you follow directions they are quite good.
They can be about $4/fitting but they are close to idiot proof.


Even if you screw up and have a leak, you can often just take the joint
apart, smooth the old pipe and try again.


"JIMMIE" wrote in message
...
I don't usually have a problem sweating Cu pipe but this is a little
unusual. I need to put a coupling on a short pipe protruding from a
wall covered with ceramic tile. When I place the coupling on the pipe
the coupling extends back into the wall so I cant solder to it.
Removing the ceramic tile is a last choice, it is very old, nearly 100
years and I doubt if a match could be found. Getting to the plumbing
from the back side of the wall is also not a good choice. I was
thinking of drilling some solder holes around the perimeter of the
coupling to feed the solder into. I have experimented with this
technique on a couple of pieces of scrap and it seems to work OK.
Anyone here ever done something like this before.

Jimmie