I ran a Calcium Hardness test with the tf100 kit. I filled the cylinder to 25ml. I added the 20 drops of r-0010. Then added 5 drops of r-0011L. The sample was suppose to turn red but it turned a pale pink. Then I added drops of r-0012. At 25 drops, the sample became clear. I continued to add and stopped at 70 drops and the sample never turned blue. I then redid the sample adding 2 drops of r-0012 prior to adding R-0011L in case of the presence of copper but I had the same results. Do I not have enough calcium to turn the sample red or do I have another problem?