chem geek said:
6% Clorox Regular is 5.71% Available Chlorine (by weight) and is 6.17% "Trade" % which is the % Available Chlorine by volume. Most chlorinating liquid is quoted by Trade %. The rule that one gallon raises the FC in 10,000 gallons by the same numerical value as the percentage of chlorine is technically referring to the Trade %. So one gallon of 6% Clorox in 10,000 gallons raises the FC by 6.17. The "6%" in Clorox is the weight percentage of sodium hypochlorite in an ingredients list. It's confusing, but fortunately all these numbers are close enough to each other to not make this a big deal.
You seem to know what your talking about so I'll ask
How does 6% clorox compare to soduim di-chlor say at 62%? Gallon:Lb?