Hi, I am working with a pretty fresh fill (2 week old water) in a 400 gallon covered hot tub, and did have perfectly balanced water. But when I did my complete weekly testing yesterday, my Ph wasn't even on the charts? I have a Taylor 2005 test kit. Here were my numbers 8 days ago:
FC - 5
TC - 5
Ph - 7.6
Alk - 60
Ch - 110
CYA - 30
Since then I tested the chlorine each day, only used the hot tub once, and only added Clorox bleach. Here were my numbers yesterday:
FC - 5
TC - 5
Ph - unreadable. A very bright pink??
Alk - 50
Ch - 110
CYA - a little under 20 (not sure why it fell like that).
Anyone know why my Ph was reading like that? I did the test twice and came back with the hot pink both times. I had thought that would only happen if my FC was above 10, but it has not been above 5.
And on another note, any reason that my CYA dropped like that, in a covered hot tub? I guess that means I have to use dichlor again a couple of times even though I thought I was done with dichlor until the next fresh fill. I DID add about an inch of fresh water (my kids like to splash), but I didn't think it'd make that much of a difference).
FC - 5
TC - 5
Ph - 7.6
Alk - 60
Ch - 110
CYA - 30
Since then I tested the chlorine each day, only used the hot tub once, and only added Clorox bleach. Here were my numbers yesterday:
FC - 5
TC - 5
Ph - unreadable. A very bright pink??
Alk - 50
Ch - 110
CYA - a little under 20 (not sure why it fell like that).
Anyone know why my Ph was reading like that? I did the test twice and came back with the hot pink both times. I had thought that would only happen if my FC was above 10, but it has not been above 5.
And on another note, any reason that my CYA dropped like that, in a covered hot tub? I guess that means I have to use dichlor again a couple of times even though I thought I was done with dichlor until the next fresh fill. I DID add about an inch of fresh water (my kids like to splash), but I didn't think it'd make that much of a difference).