Our pool is 19,000 gallons salt water new build. 16'x40' with spa. Pebble sheen, Pentair system with Screenlogic software, Pentair IC-40 salt cell, Pentair heater, Pentair filter, autocover, and floor jets. Pool was built Apr-Aug 2018.
I also have the pool autofill supplied by my water softener. Tap water is very hard where I live; this keeps my CH from rising.