My alkalinity has been on the rise, it went from around 100ppm to 140ppm in the past few weeks. I've been adding MA on a regular basis to try to lower it, I get it down to around 100, and by the next morning, it's hovering between 120-130ppm.
I wait 2 hrs after adding MA before I test to ensure that it mixes.
My pump is on 24/7 (commercial pool).
I use Co2 as the pH control, I know that will raise the alkalinity, but, why does it keep bouncing back after the addition of MA?
Current Readings using the ColorQ:
Alk: 126(I've tested this using the Taylor drop-count, and got 130ppm)
CYA: 0 (commercial "indoor" pool-cannot use CYA)
Temp: 86 degrees
This is a 126,500 gallon commercial pool with a retractable roof-which is open all day since it has been so gorgeous. The pool sees about 150 people/day(mostly kids)
Thank you for your help!
The pool uses liquid chlorine.