Aqua Chem is the BioLab / BioGuard low-rent brand. BioGuard chemicals are (in my opinion) a "Rambler" (or maybe, a "Suziki" or "Edsel") product at Rolls Royce prices: expensive, but not so good. AquaChem has "Rambler" products at "Rambler" prices . . . cheap, but not so good.

I don't know ANYTHING about there filter goo. But based on what I know about their OTHER products, I'd get out the shop vac!

In general, we've seen NO benefits from any of the sand alternatives, and some have created definite problems.