I opened my pool only last year, and on opening, immediately went with a swcg, and it's great. I did notice something disturbing though. The metal part that goes on top of the pool wall (not the rail) - looks like a U or J channel - is rusting. I have heard about the 'electrochemical corrosion' involved with metals around saltwater pools, but I need to make some changes, obviously. The rails are also metal, but are not showing signs of rust. I am thinking that perhaps I need to be preemptive to worsening rust conditions and replace the metal channel that is rusting with aluminum - if they make that, or perhaps take them off, remove the rust and spray down with rustoleum?
I know there are some that totally feel like people that use swcg with an above ground pool are idiots, but frankly it is so low maintenance and pleasant to swim in, that I don't see myself converting back to traditional chlorine. I greatly appreciate any and all suggestions.