We moved into a house three years ago and I always had a pool guy maintain my pool throughout the year. This year I decided to try to maintain the pool myself. The pool guy has been using chlorine tablets and I wanted to try using liquid chlorine because I read it causes less problems. I have been reading the forums and pool school the last couple of years and learning from other people. When I go to poolmath, it mostly explains how to increase or decrease the different levels if they are not optimal. How do I know how much I should add of liquid chlorine on a daily, weekly or monthly basis to maintain the optimal levels or will this just be a guessing game until I get it right?