We received our TF-100 test kit yesterday, and did our first test today. Here are the results:
I have to say that the CYA is a bit subjective as it came to just under the 20 line on the vial. I have a SWCG pool with a vinyl liner. It is about 30,000 gallons--41x16. Reading, it seems that my TA is fine and so is the CC level. I am unsure about the FC and CYA levels. It sounds like the CYA may be low, and I am unsure about the FC levels. Any insights into these readings would be greatly appreciated.