To do the hot water bath you need a 5 gal bucket and some dish soap. Everybody seems to like Dawn dish soap. Put a little soap in the bucket, get the water as hot as it will get out of the tap, fill the bucket 1/4 full, some people tape the holes shut (me), put the ball in the water, and fill the bucket the rest of the way with hot water. I also use a very soft bristle brush. Don't worry if a little color comes off the ball. Soak for 1/2 hour, run a little water in the bucket to get the oil on top off, dump the water and rinse the ball off with warm water then towel dry. Make sure you do this 24 hrs before you use the ball so any water in the ball will evaporate. Have fun.
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Dick
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So many questions, so little time but I'm having fun.