I'm new to this forum, so forgive me if this has been asked. I understand that everyone on here is stating that pucks keep adding to the total CYA, and that the CYA gets too high if you keep using pucks, and that is why everyone is using bleach. The problem with bleach is it is more manually intensive, and you can't use it when you travel for periods of 4 days or more. That is why pucks are great, you just put them in the inline chlorinator and everything is swell. Why hasn't any of these great chemists invented a puck that doesn't add to the CYA? Isn't it possible? I would think there would be a huge market for this if possible.