Much has been made of the fact that when switching from an old FG gas tank to an old steel one, the insides of that old steel tank need considerable prep/de-rusting before adding a protecive layer of Caswell's.
I was considering just dumping 8 oz of traditional jellied rust remover (aka phosphoric acid) into the tank along with another half pound of nuts & bolts and shaking things around for 15 minutes, but everything I've read says this is bad juju.
Then I happened across some writeups in this stuff... "Evapo-Rust"
broken link removed
... which supposedly is not only very effective, but attacks ONLY the rust.
Any one have experience with it -- or other preferred de-rusting methods for tank prep?
I was considering just dumping 8 oz of traditional jellied rust remover (aka phosphoric acid) into the tank along with another half pound of nuts & bolts and shaking things around for 15 minutes, but everything I've read says this is bad juju.
Then I happened across some writeups in this stuff... "Evapo-Rust"
broken link removed
... which supposedly is not only very effective, but attacks ONLY the rust.
Any one have experience with it -- or other preferred de-rusting methods for tank prep?
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