The other night I needed to cut some metal outside, so I ran the torch hose under the door and proceded to work out in a rather nasty night with a strong wind. I didn't realize I was running out of acetylene until the torch started going goofy. At first the handle valve started sticking open so I thought it was freezing up (it was minus 20 with a serious windchill) so I shut things down. When I went to check it out the next day, I saw that the acetylene tank was pretty much drained, and when I opened up the torch little grey and black beads that looked like granular fertilizer started falling out. Apparently one of them had blocked the lever valve. Just wondering if anyone else had seen these come out of an acetylene tank under these conditions, or if possibly they had come out of my spark arresters. The tanks are kept in an upright position. Any thoughts or concerns? I was using my "fairly new" Victor cutting torch and regulators. I'm thinking if those pellets went through the regulators too, I should be checking out those and the hoses pretty closely. Can't be a good thing. The hoses are new T rated ones, but I still have the Princess Auto spark arresters. Anyone ever broken one apart to see what's in there?