Small rust spot on new steel tank. What to do?
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tmassey
Contributor
Umm… dive it? 
Seriously, these are industrial-grade cylinders. It will outlive you, even with its flaws…
ETA: here’s a tank I bought. Cleaned off the corrosion. Hydroed it: passed just fine. Do not worry about such microscopic details…
ETA2: Rereading this, I may have come off condescendingly. That was not my intention. You’ll notice that in that thread above I was the one asking if my tanks were too damaged to be used, and everybody told me everything was fine: clean them up and use them. Of course, those tanks were slightly more corroded than what you’re showing us…
So I get it: brand new tanks and you’re worried. The point is: scuba tanks can take an unbelievable amount of abuse, and hot dipped galvanized like yours even more so. They will be fine. And for the record, that is most likely not really rust of your tank. It very well may have been something that rubbed onto your tank and rusted on the surface. But either way, the tanks are fine.
Seriously, these are industrial-grade cylinders. It will outlive you, even with its flaws…
ETA: here’s a tank I bought. Cleaned off the corrosion. Hydroed it: passed just fine. Do not worry about such microscopic details…
ETA2: Rereading this, I may have come off condescendingly. That was not my intention. You’ll notice that in that thread above I was the one asking if my tanks were too damaged to be used, and everybody told me everything was fine: clean them up and use them. Of course, those tanks were slightly more corroded than what you’re showing us…
So I get it: brand new tanks and you’re worried. The point is: scuba tanks can take an unbelievable amount of abuse, and hot dipped galvanized like yours even more so. They will be fine. And for the record, that is most likely not really rust of your tank. It very well may have been something that rubbed onto your tank and rusted on the surface. But either way, the tanks are fine.
Umm… dive it?
Seriously, these are industrial-grade cylinders. It will outlive you, even with its flaws…
ETA: here’s a tank I bought. Cleaned off the corrosion. Hydroed it: passed just fine. Do not worry about such microscopic details…
ETA2: Rereading this, I may have come off condescendingly. That was not my intention. You’ll notice that in that thread above I was the one asking if my tanks were too damaged to be used, and everybody told me everything was fine: clean them up and use them. Of course, those tanks were slightly more corroded than what you’re showing us…
So I get it: brand new tanks and you’re worried. The point is: scuba tanks can take an unbelievable amount of abuse, and hot dipped galvanized like yours even more so. They will be fine. And for the record, that is most likely not really rust of your tank. It very well may have been something that rubbed onto your tank and rusted on the surface. But either way, the tanks are fine.
Umm… dive it?
Seriously, these are industrial-grade cylinders. It will outlive you, even with its flaws…
ETA: here’s a tank I bought. Cleaned off the corrosion. Hydroed it: passed just fine. Do not worry about such microscopic details…
ETA2: Rereading this, I may have come off condescendingly. That was not my intention. You’ll notice that in that thread above I was the one asking if my tanks were too damaged to be used, and everybody told me everything was fine: clean them up and use them. Of course, those tanks were slightly more corroded than what you’re showing us…
So I get it: brand new tanks and you’re worried. The point is: scuba tanks can take an unbelievable amount of abuse, and hot dipped galvanized like yours even more so. They will be fine. And for the record, that is most likely not really rust of your tank. It very well may have been something that rubbed onto your tank and rusted on the surface. But either way, the tanks are fine.
No worries ! Appreciate the info.
newman_diver
Contributor
A little bit of vinegar will remove most of the surface corrosion. I echo the other members, those tanks last forever. My 50s are scratched from the caves, still gtg. Mostly going to be a cosmetic issue.
And here I was putting clear nail polish on all my spots when we first got them .
We love those steel tanks and a few spots and blemishes just add character!!
.We love those steel tanks and a few spots and blemishes just add character!!
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