I've been open now for 2 weeks. These results are from my Color Q. I ordered my TF-100 yesterday, according to USPS tracking, it and the speed stir should be here..... well.... who knows cuz the USPS tracking likes to keep you guessing but should be tomorrow.
We've been getting some rain so it's twice dragged my PH down. Each time I raised it using washing soda and pool math, and it was raised back to 7.5 as promised by pool math. I'm not super confident in the CYA reading which is why I'm not raising my FC yet. (and the water is clear) I've used the Color Q a number of times now to test CYA... including bringing the sample water inside and letting it warm up for 2 hours before testing and all results are in the 70's. I do like the Q, but am anxious to see what the TF-100 tells me. Just thought I'd share.