Something like a pump for a decorative fountain could be plumbed to the drain port to keep the acid bath circulating. The one I use on an old pitcher pump fountain in my yard is all plastic and submersible, and pretty cheap. Even if it wore out or failed within a few days, it might be worthwhile to keep the crud cutter solution in motion.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!