I have a fiberglass pool and last year I used the chlorine tablets and my water was perfect all summer. I have been told that the tablets are not good for the pool since the 1% waste from them will add up and make things very bad over time (can't empty the pool). I have started using liquid chlorine only but it's a pain. I'm adding half a gallon a day and my fc is nowhere near normal levels since it burns off quickly. Would like to have at least I tablet in the skimmer sock at all times and supplement with liquid chlorine. Bad idea?