I've been using bleach since I've had my pool for the past 3 summers and haven't had any problems. I'm considering installing a SWG to automate the process a little, of adding chlorine. During the summer I will at times put in 1 jug (121 oz) daily, sometimes a little more, to keep my FC levels up, I'm in full sun nearly all day. The pool is 24-25000 gal and I'm looking at the Pentair IC40. Looking at a comparison chart I found on discountsaltpools.com it says that this unit will produce 1.4 lbs/day of chlorine, I assume if running at 100%. My questions are: How many lbs of chlorine is in a jug of bleach, will this SWG be able to keep up with my demand without having to run 100% all of the time and how much supplementing will I have to do with bleach, should I be looking at a different unit and am I looking at this right or am I off my rocker?? Also, am I wrong in thinking that I can go away for a week in the summer and not come back to a pool severely lacking in FC or needing to SLAM it? Thanks.