That is a killer idea, gcrmcc,
IIRC the little granules in disposable diapers are a very absorbant material, would tossing a pampers in the floor of the welder act the same as the little bags? I honestly don't know if the material is the same, but after having experience with 3 kids worth I know they are VERY good at holding their liquid. :drunk:
I know that they put rice in salt shakers in humid climates, to keep the salt from clumping.
I'm just thinking of the kind of stuff a guy could use if he didn't buy new stuff with the little bags of dessicant.
A while back, my new neighbor who had just bought the muffler shop next to mine called me over to ask why his welds were crappy. I saw he put a roll of .035 MIG wire in his welder that had been sitting under the chop saw bench in the back of the shop for several years. It was all spotted with rust. You could barely weld with it.

ain: It was so rusty that when you pulled the trigger and fed wire without welding a cloud of rusty dust would blow out with the gas. We pulled about 1/4" worth of wraps of wire off the spool and got down to some wire that was a little cleaner, put a new tip, cleaned the liner ,clamped the scrubber pad on it, and he finished the day with it, as was a little better to weld with.
With the way he welded then, I don't think anyone will notice the rusty pinholes anyway

. Glad it's only mufflers. He bought a new spool the next day anyway.
later,
Mikey