Scuba tank boots will damage your tanks! 

Thanks for watching

In an ideal world yes, removing the boot for a good wash would be perfect. Unfortunately it's the most neglected area of after dive care.

@@scubatechkeylargo : Makes sense, and that was my fear/concern.

Sand blasting can be harmful because in the process of removing paint some aluminum can also be removed. Zero tolerance for missing aluminum. Best method of removing paint is paint stripper and scrapping lose paint.

you got it, I'll start putting some more vids about regs. Thanks for watching.

I’m guessing it’s a old steel oxygen tank, send me pic of the markings, the valve and neck

Will do.