Hi all, I am a new homeowner and new pool owner in southern Georgia and up until recently have done pretty well taking care of the pool myself. I plan to get one of the recommended test kits but don't have it yet so I have to rely on test strips and the pool store for the moment.
I have a ~20,000 gal vinyl non-salt pool, and my FC is reading 0 ppm even though everything else (pH, TA, CH, Phosphates) is "perfect" per the pool store and within the acceptable range per test strips (hard to list specific numbers using the strips). The pool store did say I have a CYA of 70 ppm which was slightly high but not enough to eat up all my chlorine and didn't know what to do other than shock my pool.
Any ideas on what is eating my chlorine? Is there too much stabilizer despite what they said? I do not have algae in the pool, the water is clear and blue, I have 3-4 silk tabs in the skimmer basket at the time of testing. With that many chlorine tabs I was surprised that my FC = 0. The test strips are new and the pool store confirmed there was no FC so I don't think faulty strips are to blame.