I am using the TFT 100 kit and let me say it has been great. I track what goes in the pool and the test matches what is predicted by the pool calculator. A great tip was to put a white piece of paper behind the vials. I could never read the PH correctly until now.
1 question on the FC test. I start with a dark pink color then it will go to a very light pink. Do I keep adding drops until it is completely clear?
Pool is sparklng clear, no chloring smell or burning eyes. ( I always swim under water with no mask and eyes open)