Hey TFP! I had a few questions about the CYA in my pool.
Recently, I noticed that the FC in my pool did not seem to last very long, and I was having to add a lot of chlorine to maintain my levels. Well, because of what I learned here, I suspected low CYA, only to find out that it is almost non-existent! I filled the tube for the CYA test and it was only barely cloudy with the black dot still very visible.
1. Does the R-0013 ever expire? I am confident in how I made the solution and performed the test. I want to make sure it's not expired as I bought my kit over a year ago.
2. Should I be conservative and assume 20ppm and add CYA based on 20ppm and poolmath?
3. How important is it to leave my pump running for 24 hours as the CYA is dissolving in the sock, in the skimmer? Don't worry, I will add in small increments
4. Finally, how is it possible for my cya to go from 40-50 down to 20? I only did ONE partial drain, and that was only when we had a heavy rain this year and the level was over the skimmer opening. CYA doesn't evaporate from what I've read here. Granted, southern Cali had a ton of rain this past year. Does rainfall dilute the CYA somehow?
Recently, I noticed that the FC in my pool did not seem to last very long, and I was having to add a lot of chlorine to maintain my levels. Well, because of what I learned here, I suspected low CYA, only to find out that it is almost non-existent! I filled the tube for the CYA test and it was only barely cloudy with the black dot still very visible.
1. Does the R-0013 ever expire? I am confident in how I made the solution and performed the test. I want to make sure it's not expired as I bought my kit over a year ago.
2. Should I be conservative and assume 20ppm and add CYA based on 20ppm and poolmath?
3. How important is it to leave my pump running for 24 hours as the CYA is dissolving in the sock, in the skimmer? Don't worry, I will add in small increments
4. Finally, how is it possible for my cya to go from 40-50 down to 20? I only did ONE partial drain, and that was only when we had a heavy rain this year and the level was over the skimmer opening. CYA doesn't evaporate from what I've read here. Granted, southern Cali had a ton of rain this past year. Does rainfall dilute the CYA somehow?
