Hello,
I am a new hot tub owner and I am slowly learning the intricacies of spa chemistry. I have read the stickies which are incredibly helpful, but I could still use some advice. The hot tub is 280gal at 100°F. The water is clear and feels fine, but I just tested using the Taylor FAS-DPD kit and it appears that my CYA has become way too high. Here are the current values:
pH: 7.4
TA: 70ppm
CH: 220ppm
FC: 8.5
CC: 1.5
CYA: ~140ppm (mixed with half fresh water, tested at around 70ppm)
It is entirely possible that there is some user error with the testing procedure, so please keep that in mind. First of all, shouldn't CC be higher than FC? If I drain half the tub to get CYA levels down, how do I bring up Cl without adding CYA? I have a couple different types of chlorine powder, but I assume they both have CYA. Do I run to the store and get some liquid chlorine?
Thanks!
Dave
I am a new hot tub owner and I am slowly learning the intricacies of spa chemistry. I have read the stickies which are incredibly helpful, but I could still use some advice. The hot tub is 280gal at 100°F. The water is clear and feels fine, but I just tested using the Taylor FAS-DPD kit and it appears that my CYA has become way too high. Here are the current values:
pH: 7.4
TA: 70ppm
CH: 220ppm
FC: 8.5
CC: 1.5
CYA: ~140ppm (mixed with half fresh water, tested at around 70ppm)
It is entirely possible that there is some user error with the testing procedure, so please keep that in mind. First of all, shouldn't CC be higher than FC? If I drain half the tub to get CYA levels down, how do I bring up Cl without adding CYA? I have a couple different types of chlorine powder, but I assume they both have CYA. Do I run to the store and get some liquid chlorine?
Thanks!
Dave