I don't think there is any rust inside the tank -- it was drained religiously once a week. There IS some oil inside the tank -- got a nice grey goo from the drain valve, which spits and sputters. There are two large plugs in the side of the tank, about 2" in diameter. I'm going to remove at least one of them and wash out the tank, maybe get a good look inside. It's been in continuous use, never sat up, so should be good. Of course it will be in a far corner of the shop, so if it does burst a seam I should be safe! Even 150 psi is not enough pressure to cause a catastrophic explosion, if anything happened it would most likely just be a seam split and casue a big leak. No, I wouldn't weld it up and continue using it! ----------------- Date: Wed, 16 Jan 2008 18:29:21 -0500 (EST) From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker) " From: Frank Swygert <farna@xxxxxxx> " " Tank has a 150 psi rating, but due to age will keep it down to 120 " psi. Will clean it all up and put a fresh coat of paint on it before " installing and using. makes me wonder if there's any good way to check and/or remove rust from the inside of the tank. phosphoric acid wash? -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For all AMC enthusiasts http://farna.home.att.net/AMC.html (free download available!) _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list