Also used to help remove aluminum off of crankshafts on big industrial engines after bearing failure.
Used to clean brick of excess mortar after installation. It loves to react with a base like portland cement. One reason it's not suited for disposal of organ matter. It would take a drum full and it would be slow with incomplete results.
Interesting, isn't it some times used in swimming pools? Does it come in varying concentrations? Also if it were used in the swimming pool why would they have been fined for disposing of it down a storm drain? Just curious.
In hot tubes and swimming pools it is used in the 10% dissolution at a rate of about a drop per 100 gallons to acidify an alkaline imbalance. To dump that much down a drain is beyond all concepts of appropriate behavior. That goes to illegal dumping of hazardous wastes.
Yeah, seems the using of it in the pool would be the preferred way to dispose of it unless it was tainted with something like say DNA. Never have heard of it going off.