but SWIM was referring to the only crap he has found here in arts and crafts stores, all of them have glycerine based stuff.
Well SWIM's going to fork over the 50$ for a 50lb sack of it from local chem supply.SWIM is a caretaker of a large pond with fish and wildlife in it and has to raise the PH of it on occasion, and of course the standard ph increaser found in every store here is only Sodium Carbonate, which will kill off the aquatic life in pond.