I've read up on the different acid washes with drywall nail cleans, but my tank doesn't have egreegious flaking rust, just some sediment. I want to clean it in a less-obtrusive way (but maybe that's the wrong tack). What say the council on a tank that has speckle residue.
I'm pretty sure I need to address the petcock, but would vinegar in the tank be the better answere than phosporic or hydrochloric acid?
