SO I have a vinyl lined pool and just this past week added a Hayward 200k BTU Heater. I did the heater installation myself, so I voided the warranty and I am ok with that. Since I have already voided warranty, and I have a vinyl liner, is there any need to worry about CH at this point? Reading through these forums, it has been a hotly debated topic. If there is no advantage, I see no point in paying for and adding unnecessary chemicals to my water. I am a subscriber to the less is more theory in most things. Thank you