If it were me, I'd retest the cya using the diluting method 1st. You may need to drain. You'll just be wasting bleach if you need to drain. Good testing aways gives you good answers about what to do next.
Re: Chlorine Lock ?
If it were me, I'd retest the cya using the diluting method 1st. You may need to drain. You'll just be wasting bleach if you need to drain. Good testing aways gives you good answers about what to do next.
Last edited by Watermom; 07-25-2014 at 07:05 PM. Reason: change "waisting" to "wasting"
19.5k gal, 16x32 vinyl liner, sand filter, 1hp single speed pump, K-2006 test kit. PF=6
Re: Chlorine Lock ?
Yes, we need to verify that your CYA is really as high as it appears, before we can really proceed. Watch the CYA video again.
And, take a look at these Taylor images:
Re: Chlorine Lock ?
I tested CYA again and maybe I did do something wrong the first time. I really watched until I was SURE I didn't see the black dot and now it registers about 80. Does that help? Hang in there with me-please!
Jane
Re: Chlorine Lock ?
80 is pretty high but workable. This late in the season, draining might not be worth it. Its up to you. Check the best guess chart for the amount of bleach youll need at 80 cya (24 FC I think) to stay at shock levels.
19.5k gal, 16x32 vinyl liner, sand filter, 1hp single speed pump, K-2006 test kit. PF=6
Re: Chlorine Lock ?
I have looked at that chart and have no idea what it means. I don't mean to sound stupid here, but am I missing something? Where does the chart indicate how much I need to add? Is there anyone who can explain this to me?
Re: Chlorine Lock ?
So, if you did the dilution and the test read 80, that means your CYA is 160 since you have to multiply the result by 2.
With a CYA of 160, you need to keep your chlorine levels between 8-15 ALL the time. If you dip lower than 8, you risk an algae bloom. And, when you need to shock the pool, your shock level will be 25ppm.
What is the volume of your pool?
Re: Chlorine Lock ?
23000 gallons
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