I've heard about all that. Anecdotal evidence from my own experiences as well as my father in law tell me that CYA levels don't dramatically climb like some people make it seem like they do. My pool has not been drained in 3 years with exclusive use of pucks as a chlorination method and has been sitting at a cool 30ish since then. My father in law has had his going for 15 years or so without needing to drain and has an inline chlorinator using pucks. Have you ever actually had a problem with them, or did you switch before a problem developed?
Liquid chlorine has annoying points attached to it. I either have to go buy it more often or store more of it at a time, plus creates more trash, not that that's a deal breaker. It's just less convenient than pucks and I've never had a problem with pucks.
I'll save my pennies up some day and get a SWG but for now I have other things I'd rather spend $900+ on. Namely, I'd like to put it towards replastering said pool.
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