My newly constructed pool was filled on Friday the 10th. The pool construction guy initially set up all the equipment, added CYA, and put two 3" tabs of trichlor in the automatic chlorinator. I was told that due to the QuikPure 3 25k gallon ozonator, my free chlorine levels would always be low (0.5) but effective at that level.
When I had my water tested at a pool supply store on Friday, they showed:
TC: 0.2, FC: 0.0, ph: 8.7, TA: 110, CH: 92, CYA: 40
It was suggested I add muriatic acid and shock the system using 2 pounds of calcium hypochlorite, which I did between 5-6pm local time yesterday (the 17th).
Today (the 18th) at 11am, I re-tested and see:
TC: 8.0, FC: 5.9, ph: 7.6, TA: 107, CH: 132, CYA: 45
ph is better, and FC is up... but there's a LOT of CC still left in the pool. That seems to indicate to me (the novice) that there wasn't enough chlorine in the pool over the past week (its first week of use), or the ozonator isn't working. Am I correct? What should my FC be with 25k gallon ozonator on a 14,300 gallon pool?
Secondly, the pool supply store recommended I reshock again tonight to clear out the remaining CC. Is that good advice? Note that I bought CalHypo before I read about the BBB method here, and intend to use bleach for shockings going forward.
Thank you in advance for any advice you can offer!