So after only getting in on the whole TFP wagon for about 1/2 of last year, I would like to get the full benefits this year. So one thing I'd like to do is install the Liquidator to avoid having to manually add chlorine bleach. Based on my pool (36k gallons), what size Liquidator should I get and what accessories should I consider? I'd imagine the larger size is simply more convenient? What is the '3/8" Upgrade' I see mentioned? I just read the last post about one outfit kinda abusing there posting privileges, so who is a good company to buy from? Thanks!