[Shop-talk] Sweat joint leak

[Karl Vacek]

As everyone said, it sure sounds like there's still water in the line.  But 
if you've used oxy-acetylene and are sure there's no water, it's possible 
you've overheated the joint and it's just not going to flow.

The new lead-free solder, which works great otherwise, seems more prone to 
burning, but it can happen if you overheat regular lead solder too.  Once 
that happens, it's best to cut the burned area out and start over.

I'd just cut it out, slip in a new section with stopless couplings, and 
re-solder, using the bread trick if you can't stop the water any other way.

Karl



>    I have a pin hole drip in one of the solder joints in my half inch hot 
> water line.  I shut off the hot water, opened some valves and drained the 
> line out through a spigot I have in the garage.  I thought Id be able to 
> heat the joint enough to get the solder to flow, but I can't get the joint 
> hot enough, even with oxy-acetylene.  Any suggestions On how I can repair 
> this?  It's a very tiny leak, I just happed to be looking up and saw the 
> drop hanging on the joint.  Thanks for any help.  John Mitchell
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