So what's the tip to nice looking *sweats*.

I had to do a soft coiled 1/2" copper run that went into a cast copper fdrop elbow. For some reason, it felt like there was a little play when the copper went into the fitting so I just sweated till solder just oozed out of the fitting and then some.

For you pros out there, what's the trick to getting a nice clean sweat between copper. I usually do the wipe with a dry towel or wipe with fluz after sweating and wipe with paper towel method.

The pro's seem to get it so that's it's puuurfect !

FWIW, I had my boiler replaced last weekend and I was surprised on the plumbers work......sweats were all drippy with globs of solder everywhere....

sweat

Wiping it with a rag before it solidifies. But a "sloppy" joint may not solder properly, if the annular gap is greater than the standard for a good joint.

i was also taught that a wiped swt (solder) joint isn't likely to leak. still could, but less likely

joint

Shouldn't make any difference because the real bond is inside the fitting. Wiping the joint just makes the outside look nicer.