First time posting - hope I'm in the right place! I have a 6 yr old in ground pool, 22k gal, Jandy APURE 1400 system. The cell has quit producing and its the older style, rectangular shape , sharp corners etc. Can I replace it with the newer PLC1400? I want to keep it simple, but the new one has 3 ports as opposed to my 2 port unit. As an option, what woud you think about converting to the Nature2 system with the mineral/salt combo? And would that system work with my existing Jandy RS system/panel? Thanks for any help you can offer!