I re-arranged a load of pipework over the weekend in preparation for
putting a new sink in the utility. One of the new connections is a
soldered 'T' junction on 15mm pipe and I have a very slow leak from
one of the connections. When I say slow, it takes around 1 minute for
each drop to form and drip into the old ice-cream container I have
placed below it.
Now for the obvious question, is there any way of stopping this leak
short of disconnecting the 'T' piece and inserting a new one. This is
not very desirable as I think I would have to disconnect at least one
other fitting in order to get sufficient movement in the pipes.
Incidentally the leak seems to be from the bottom of the pipe, I
reckon I could probably have dropped some solder onto the joint had
the hole been at the top but my soldering isn't up to doing this at
the bottom unless someone knows some useful tricks ?
If smoothering the outside in flux and reheating with a dab of solder
doesn't seal it, then discover solder slip couplings and proper pipe
cutters. They are your friends for this operation, as you won't need to
disconnect any other fittings. You just cut the pipework, make up the new
and slide everything into place.
I almost always solder from the top of the fitting. No bottom access
required. The solder will flow to the bottom with a mix of gravity and
capilliary action. You need a big torch, especially if the fitting is bigger
than 15mm. Tiny little paint stripping Taymars are rarely satisfactory.
If you can get all the water drained from it, apply flux all round the
joints, heat and add some solder. And check it really has flowed properly.
If you can't drain all the water, you'll have to take it apart and start
again - you won't get enough heat to melt solder with water present.
*Why is it considered necessary to screw down the lid of a coffin?
Dave Plowman email@example.com London SW 12
You might get a temporary fix with Fernox leak sealer. Turn off water, dry
things as much as poss, smear LS over the joint & try to work it into the
crack. Leave for an hour or so, cover with duct tape. LS is bad for skin,
use rubber gloves.
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