Hello! I'm hosting a Pool / Bachelor / Bachelorette party tomorrow evening. We are expecting 20 -100 people what should I do to prepare for this party?? We have the main things covered margarita machine, Keg, Food. Should I worry about chemicals during the party? This will be our biggest party since Last 4th of July. Thanks. Oh ya, I'm a BBB user. I do use granule shock, and pucks in the skimmer.