[Shop-talk] Sweat joint leak

[John Mitchell]

    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