My readings today are FC-8ppm, CYA-70, PH 7.6, ALK-100, CH-140. This is the first time I have EVER tested for CH (because I was under the impression it was not necessary on vinyl pools), so I am not sure I knew what I was doing. When I added the R011L it turned a very light pink, not red, and when I started adding the R-0012 it took 10 drops to get clear and 14 drops to become a very light blue, so I called it 140. * FYI-My regeant is about 5 years old.