My husband put a few old 1 lb bags of cal hypo shock on top of an old broken refrigerator in our garage and one of them has spilled open somehow. The spilled shock has turned dark brown and it is stuck to the top of the refrigerator. Since the shock is on top of a tall refrigerator, the only way to get it out of there is to vacuum it up with a shop vac. Could it damage the shop vac if I vacuum it up? After I get all of it off, how do I dispose of the shock if I don't want to put it in my pool? I'd like to dispose of the shock that has spilled and the other 2 bags since I never intend on using it.