If the chlorine is at 10 ppm, will it affect the reading in the pH test. I did Google this and found an old post stating that Taylor's "Phenol Red" test seems to be compensated for up to 15 ppm of chlorine, is this correct?
If not, would adding 7 drops of Thiosulfate from the Taylor's alkalinity test help? My understanding from the same post is it would not help and could skew the reading, the same post does not state why it will not help.
Thank you to those that might be able to answer the question.