Hi -
Pool is 10,560 gallons. Have only had to add some acid (and the chlorine) up until this point.
Just yesterday, in addition to finding out the chlorine is still zero, we JUST added some alkaline increaser (baking soda equivalent) as the alkalinity was off a bit. Is this a result of no chlorine being produced?

Otherwise, no, even last week, when the TC,FC & CC was 0, we hadn't added anything else besides acid and chlorine, everything was fine for a two weeks. The pool has only been running for 3 weeks, 8 hours a day on the pump/filter - water is crystal clear.