+ cal hypo = granular calcium hypochlorite. The good stuff will show a percentage of 65% or HIGHER.
+ 6 gallons is fine; that would be about a 12 ppm dose.
+ cal hypo = granular calcium hypochlorite. The good stuff will show a percentage of 65% or HIGHER.
+ 6 gallons is fine; that would be about a 12 ppm dose.
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