I’m having an APT (aquatic physical therapy) pool built this Summer. Hopefully will open in the Fall. Indoor pool, 12,500 gallons. UV blocking windows. I want to use Clear Comfort (AOP) with liquid chlorine (variable Stenner Pump). The pool surface will be ceramic tiles with epoxy grout. PT pools are warmer than those used for swimming laps. Around 90-95 degrees. The pH of the water here in Homer, AK is 7.2 right out of the tap. Initially, I’m looking for advice on what the startup chemicals should be. TA of tap water here is 20 ppm. Right now, I’m thinking about using baking soda to raise up the TA, then adjust the pH, and finally add enough chlorine to get me to 1 ppm FC. Not sure about CH or what to do. Any advice will be appreciated. Thanks, Bill.