Have a Taylor K-2006 kit. After arriving at a FC count - Add 5 drops R-0003 to titrate using 0871 for CC. Question - is it normal to get the solution colorless at a point but then if left alone for 5-10 seconds the solution begins to turn pink or lighter shade of pink? Once it first turns colorless - calculate the CC at that point? I am mixing thoroughly as well.
Another question regarding UV and it's effect on FC. I understand exposing pool or spa to sunlight reduces FC - will it also reduce CC?