Yeah, I don't think I can take anymore of there help. My pool is an AG 18' round 4.5' deep. It's about 8000 gals. They put in a full quart of the stuff and that should be enough for 25,000 gals according to the label. The ingredients listed on the label are

n-Alkyl (60% C14, 30% C16, 5% C12, 5% C18) dimethyl benzyl ammonium chloride ....39.84%
N-Dialkyl (60%C14, 30%C16, 5%C12, 5%C18) methyl benzyl ammonium chloride ....0.16%
Inert Ingrediants ....60%