- May 8, 2018
- 337
- Pool Size
- 14000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
OK, this is very weird and I can't wrap my head around it...
2 weeks ago, my CYA was a bit low at 60, but I began a travel cycle for work and I didn't really have the time to do anything about it. Since then, it's rained a LOT here in Houston (on the brief time I was home, I had to drain the volume down a bit.
Here's where it gets weird. Due to the rain, salt and calcium are (as expected) lower than last time. By an amount that I would consider reasonable for the rain we've had. But.... My CYA went up. Way up. Like, it's about 90 now, maybe even 100.

I have definitely not added any in the last two weeks and nobody else has. The only thing I can think of is that my reagent is old (headed to Pinch a Penny to get some stuff later, so I'll get some new reagent).
Otherwise, the only difference is that we are in the middle of a heat wave and the pool temp went from 80 to 87 in the space of a week.
I'll update/redact if the new reagent shows a number that makes more sense.
2 weeks ago, my CYA was a bit low at 60, but I began a travel cycle for work and I didn't really have the time to do anything about it. Since then, it's rained a LOT here in Houston (on the brief time I was home, I had to drain the volume down a bit.
Here's where it gets weird. Due to the rain, salt and calcium are (as expected) lower than last time. By an amount that I would consider reasonable for the rain we've had. But.... My CYA went up. Way up. Like, it's about 90 now, maybe even 100.
Otherwise, the only difference is that we are in the middle of a heat wave and the pool temp went from 80 to 87 in the space of a week.
I'll update/redact if the new reagent shows a number that makes more sense.