I'm completing the SLAM process on my swim spa and wanted to use a more precise measurement for the CC and OCLT at the end to confirm everything is a clean as possible. I am using a TF100 test kit and have read the extended test kit instructions. I understand that you can increase the precision by using a larger sample and using .2 for the drops as noted in this instruction.
"There isn't normally any reason to do this, but if you need more precision you can do this test with a 25 ml sample of pool water and multiply the number of drops by 0.2. In most situations the added precision is useless and simply wastes reagent."
I did have one question in doing this. After you get your FC level, when you add the R-0003 to start the check for your CC, do you still only add 5 drops? Or do you need to double that to 10 drops?