How do you use BioGuard pool chemicals?
How do you use BioGuard pool chemicals? If you’re wondering, “How much BioGuard® Back-Up® 2,” should I add, it’s simple: use 1 oz. per 5,000 gallons of water. Pour the solution directly into your pool water to back up your shock and algaecide. The bottle has a measuring window on the side, so you can see exactly how much you’re adding.