Chlorine Lock ?

[mjsboone]

After I test at dusk, generally I am at about 21. I add enough bleach to bring it up to 25 and then overnight I go down again when I test in the morning before sun up. I add mor bleach to bring it up again trying to hold that 25ppm as I was advised. It just evades me! PH is 7.4 but I understand that may not be correct because of high FC that I am trying to hold on to.

[CarlD]

If it's only dropping to 21 or higher, you are FINE! If everything else is now good, you can let the chlorine gradually come down to the maintenance level and go swimming!

[FormerBromineUser]

Thanks, Carl! I had a feeling mjsboone might be struggling out there waiting for input.

[mjsboone]

Thanks for the feedback. I appreciate it.