Clear, but no chlorine???

[FormerBromineUser]

Yes! You need to make sure you've reached the target FC. Under shock conditions you don't want to make assumptions. (Once your demand is gone, you won't have to do this).

Have you checked your CYA lately? BigDave mentioned the possibility of some conversion of CYA and I don't have time to back track to see when you last checked it.

[mary jo]

Last week (august 11) my CYA tested at 150. I typically do the test 3 times and average. (since it's a more subjective test than most- i think). I have not added any hose water since last week, but I will test it again today.

[Watermom]

If you tested CYA on August 11, no need to do it again. Just wastes reagents.

[mary jo]

already tested everything at 12:30. CYA=150. FC=32, CC=0
however- pH is up to 7.8 today. it's been hovering around 7.6 for the past week.

[BigDave]

... Have you checked your CYA lately? BigDave mentioned the possibility of some conversion of CYA ...

I think this may have happened before mary jo started this thread when the FC was 0 for alot of the time. I don't think it's an ongoing issue.

@mary jo: pH test is probably inaccurate with FC at this level, I wouldn't bother with it for now.