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Dude is that a tire ? or an O-ring..??
Not trying to be a wise guy but lots of threads here on that. Just search for "tank cleaning" or the like....
I need to clean the inside of an old tank. It has plenty of surface rust. Can it be done chemically?
Quote from: BrandonB13 on January 28, 2011, 07:24:18 PMI need to clean the inside of an old tank. It has plenty of surface rust. Can it be done chemically?It CAN be done chemically but acids dissolve both rust AND metal, which can leave you with holes.On the other hand, Electrolysis and some patience will dissolve the rust and leave the base metal alone (with correct polarity).
quick question since this is the most recent thread:can you sacrificial anode touch the inside of the tank?I've heard that the rust like a direct route to the anode, and that sometime electrolysis doesn't get into the nooks and crannies of the tank because the rust cant get pulled to the directly to the anode.So, would a coat hanger that reaches to the depth of the tank, even if its touching the tank, be ok?
I tried the electrolysis method on a pretty rough XS650 tank. I didn't think it was working too well; it took quite a while and left a rough, scaly looking finish. That said, it stayed rust free for more than a year with no fuel in it.
Besides, no one said it was impossible to screw up the "electrolysis method" by using the wrong polarity, wrong type of soda, the wrong solution strength, or the wrong current levels. Properly done, it works as described.But, that's no reason to damn a method. It IS clear that acids will attack the base metal. If you have some base metal to spare, then fine. But, if the metal is thin, you'll have to patch pin holes where the acid ate through.Cheers,