I bought my refill kit in March of 2015. Since I have a vinyl pool, I haven't been testing my CH very much. Last test was about a month ago with reading of 140. Yesterday I decided to test again and I noticed that the R0012 is a light lavendar purple color. I don't recall if it's supposed to be that color, or if it's supposed to be clear. Anyway, yesterday's test results:
FC - 7
CC - 0
TC - 7
pH - 7.5
TA - 80
CH - 100
CYA- 50 (had been 70 for most of summer)
Salt - 3100
I have a 20k vinyl lined inground pool with SWG and natural gas heater. If the R0012 is accurate and my CH is 100, isn't that too low? I know I've heard if you have a vinyl lined pool, you don't need to worry about CH, but that seems awfully low to me.
My other question regards my CYA. During this past summer it's been very dry here, plus now we have a small leak in the pump (hoping it holds out till next spring) so we've had to add more than usual fill water. We are closing Sept. 20th. At this point I've had no problems holding FC in my pool. I even had to dial back the SWG to 15% (running pump 9 hours/day). So do you guys think it would be okay to finish out the next 3 weeks with CYA where it's at?
Thanks in advance for any help.