Mine holds about 25 gals total or something.....2 different reses...Bear I do want to try some different things like this 3 part but I know me well enough to know that if I don't understand it I will screw it up without a doubt. I have heard so many good things about the 3 part formula and feel better about trying something more complicated if it will increase yield etc....just afraid to jump into something I'm not understanding....I did study the back of the bottle and sort of went back and forth....yeah I understand this....wait....no I don't.....you get the idea. Any help, info, visual aids etc would be very appreciated. Thanks!