15,000 gallons, fiberglass inground, cartridge filter, original system: Intellichlor power center and Intellichlor IC20, Pentair Whisperflo High performance pump, Pentair Boost-rite Universal Booster pump, Pentair Kreepy Krauly (10 years ago), currently, replaced in 2022: Blue Torrent Variable Speed pump, Salt Chlorine generator (CFICGEN40) test with Taylor Pool and Spa test kit, and generic Walmart clorine and pH tester.