Hello neighbor! I'm sure the experts (I'm not one) will love advising you on this. Tl;Dr is likely be 0) get rid of the tab feeder 1) biggest VSP you can afford 2) biggest cartridge filter you can afford 3) biggest Circupool SWCG you can afford unless there's fancy automation; then match the automation brand (e.g. Pentair or Jandy). Still big as you can afford. Matching pump is also a good idea. 4) True diverter valves rather than what you have. 5) Brace for sticker shock. 6) DIY is doable.
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