Should I be taking any special action if my CC is at 1.0 (using 0.50 resolution FAS-DPD) for two weeks?


Gold Supporter
Jun 16, 2019
No visible algae, FC levels are solid , so not sure if this is really a problem or not. Rained once or twice during this time. FC did drift to 5.5ppm (80 CYA) two days ago (bottom of target range is 6.0).