Green pool........... new pool owner

[UnderWaterVanya]

Also be aware that pH reads high when fc is above 10 - so when you bring the pool back down to below 10 you may find your pH is too low. Don't try adjusting it now, but you should be prepared to deal with it later when the algae is gone and you have let chlorine levels fall to normal.

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[duraleigh]

I would suggest you go back and re-read the Shock Process in Pool School. It will likely make more sense to you now that you can test accurately.

 

[greenpool74]

Your readings are confusing .....tc=fc+cc so 22.5+.5 is 23 not 30?

Yes your are right...... Thanks for catching my typing error

 

[greenpool74]

Also be aware that pH reads high when fc is above 10 - so when you bring the pool back down to below 10 you may find your pH is too low. Don't try adjusting it now, but you should be prepared to deal with it later when the algae is gone and you have let chlorine levels fall to normal.

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So to clarify..... Just running the pump and time will allow the chlorine levels to fall?

 

[greenpool74]

Results today.....
FC-19.5
CC-.5
TC-20
TA-160
CYA-51
PH-7.2

I don't understand why the TA dropped from 210 to 160 overnight...... Please advise
Thanks

 

[Smykowski]

Most likely testing error. Don't worry about it for now. While you're shocking, only test FC &CC. pH will be inaccurate due to the high FC, and everything else won'tchange fast enough to worry about.

 

[UnderWaterVanya]

...when the algae is gone and you have let chlorine levels fall to normal.

So to clarify..... Just running the pump and time will allow the chlorine levels to fall?

Sunlight will cause a lot of it to go away (% of the total each day varies by CYA and FC levels)

Results today.....

I don't understand why the TA dropped from 210 to 160 overnight...... Please advise
Thanks

Most likely testing error. Don't worry about it for now. While you're shocking, only test FC &CC. pH will be inaccurate due to the high FC, and everything else won'tchange fast enough to worry about.

Great answer! The TA test has some nuances that we can cover when you have the rest under control. Stay the course, you are doing fine.


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[greenpool74]

Just tested just the chlorine levels......
FC=15.5
CC=.5

The water is now almost crystal clear. Should I let the chlorine levels fall? How important is the oclt?
Thanks

 

[greenpool74]

Oh also I did add about 3 inches of water yesterday due to level getting low. Lots of back washing filter

 

[Smykowski]

How important is the oclt?

Extremely. It's the only definitive way to prove that there's nothing living in your pool. Let the FC fall to maintenance levels only after passing all three criteria of the shocking process.

 

[UnderWaterVanya]

How important is the oclt?

Extremely. It's the only definitive way to prove that there's nothing living in your pool. Let the FC fall to maintenance levels only after passing all three criteria of the shocking process.

I'm still trying to get a neighbor up to speed on this point...

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[greenpool74]

The results of the oclt are........
Yesterday 8:25 pm FC-11
Today 6:30 am FC-11

Waters clear. Cc is under .5, and I didnt lose any chlorine through the night. Now to do go back to normal operation of pump and balance the TA, PH, and CH?

Thanks

 

[Butterfly]

The results of the oclt are........
Yesterday 8:25 pm FC-11
Today 6:30 am FC-11

Waters clear. Cc is under .5, and I didnt lose any chlorine through the night. Now to do go back to normal operation of pump and balance the TA, PH, and CH?

Thanks

Yep, Good job

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