I hate condensate

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Yeah, that sucks🙁

I have a gas station ~3.5 miles away and always try to fill the tank on last ride and then home. Drain the carbs (Honda Magna with 4) and smear some Sil-Glyde grease around the fill port. Think I've just been lucky though or haven't looked at it hard enough...

Wonder if you could mount the tank on a paint can shaker with some media inside🤔

That thought has crossed my mind ... but the logistics of mounting it if I had a shaker are a bit daunting . I did bust loose some of the rust with a length of chain . I need to rinse the tank out and see just how much rust remains . I'll probably end up using a chemical agent , I'm just not sure which one is best for this task .

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Don't know if it's the best... but I've heard that Evaporust works pretty well. You can buy it at most HF stores.

Might want to price a replacement tank too. I did some general searching, mainly looking for stainless steel versions (didn't find any) and some can be had for ~$130 as bare metal🤷

That thought has crossed my mind ... but the logistics of mounting it if I had a shaker are a bit daunting . I did bust loose some of the rust with a length of chain . I need to rinse the tank out and see just how much rust remains . I'll probably end up using a chemical agent , I'm just not sure which one is best for this task . Snag

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Mild: Army coffee stripped rust from the once-galvanized steel sink. Coca Cola or Mojo Criollo meat marinade might also work.

Strong: Hydrochloric (pool) acid cleaned the rust from a neighbor's corroded fertilizer spreader in a flash. Baking soda neutralizes the acid.

Didn't we have a conversation here some time back where most agreed Kreem was not a great product. Maybe it was over in the RMH VB&G.

Dill the tank with gas - ride it home and top it up with Marvel Mystery Oil (or ATF or 2 stroke oil) and shake it up a bit and the tank won't rust.

As for what you have now, get a couple dozen 1/4" nuts and about a dozen 5/16" nuts and put them in the tank then shake it around. Add half a gallon ofdeisel or stove oil or kerosine and shake it some more, Put it upside down on padding in the back of the truck for a few days driving back and forth to town on rough roads and the rust should be pretty well done. Perhaps finish it off with some evaporust or metal prep

get a new tank and have it hot galvanized - or even electr-zinc plated inside - or do what I just did on a tank I built. I got a small tub of "tinning flux" and put it in the tank then heated it just enough to melt the flux and turned the tank untill it was pretty much coated all around inside then chopped ap a bunch of flux core wire solder into 1/2" lengthsand threw that in - then put the tank on the Bar_B_Q to heat to melt the salder and rotated the tank in 3 or 4 Axis to get the solder running all around the inside of the tank then poured out all the remaining flux and solder. Got better than 95% coverage on a first try. The 70/30 lead solder should prevent rust for a few decades - or more.

I did a bit of mechanical removal/loosening with a chunk of chain ... I need to detergent (pressure?) wash and rinse well to see how much is left to remove . There's a pretty big hole in the bottom of the tank for the pump unit , but it only exposes half of the tank . Gardening has gotten priority right now , I like to eat ... my own home grown without a bunch of chemicals food .

Could well have been . I had to strip a Sportster tank a few years ago when it started shedding chunks . I'm not sure yet just what I want to do . It's only the top third of the tank that's rusted ... I keep non-ethanol premium gas here for the yard motors , maybe I better get in the habit of topping off when I get home . We didn't have this condensation problem when I lived in the high mountain desert in northern Utahahaha .