Just because, I did a lab test and taylor kit test today side by side. Water sample sat 15 min in bottle, 🤨, but my tests at work also sit in bottles for upwards to 45 min and almost mimic the live feed chemistry I test.
Lab- ph 7.67, fc 1.66, cc 0 alk 70
Taylor- ph 7.8, fc 2, cc 0 , alk 80...