Aeration and pH

[ShallowWater]

How long to aerate at 10k to 11k gallon pool to move pH from 7.2 to 7.5?

Additional information: I'm still dialing in this pool and was gone for 4 days and turned up the SWCG a bit And FC is 18, TA is 50. Can I I even trust my pH reading right now?

The pool is relatively new and I am adding a cup to a pint of MA a day right now and asked the guy watching our house to add a quart of MA on day 3 which may have been a bit much and I think he over estimated a bit on top of that.

 

[mknauss]

No need to push the pH higher. FC above 10 ppm makes the pH test suspect .

No way to predict how long it may take. Hours, days, all depends. The TA of 50 will restrict the rise.

 

[C&HSewell]

I wouldnt waste the MA until your FC comes down.

 

[ShallowWater]

Here's to sunny days in SoCal!

 

[ShallowWater]

..to bring down the FC. SWCG is off right now.

 

[mknauss]

Do not force the pH so low in the future. Keep it in upper 7's.

 

[ShallowWater]

I added some baking soda and turned off the SWCG. Here's this morning's test results.

In my current location there's lots of mature trees. In my previous location there wasn't. I'm seeing some CC here whereas in my old location I didn't. Is it possible to get it to 0.0 with the leaves and other organics at my new location. (Different pools of course)

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Test Results 04-19-2023 @ 06:43 AM
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Free Chlorine: 9.5
Combined Chlorine: 0.5
pH: 7.8
Total Alkalinity: 80
Calcium Hardness: 350
CYA: 90
Salt: 3000
Temperature: 68°F
CSI: -0.17

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Chemical Addition 04-18-2023 @ 12:29 PM
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+ 52 Ounces of BakingSoda

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[mknauss]

With your fill water, you should never, and I mean never, need to add baking soda.

The CC below 1 is considered zero.

 

[ShallowWater]

With your fill water, you should never, and I mean never, need to add baking soda.

The CC below 1 is considered zero.

I wanted to get the alkalinity up a bit from 50. Of course I will be adding MA sooner. CSI is good now and before it was aggressive IMHO.

EDIT:

Yesterday's test results:
Test Results 04-18-2023 @ 06:23 AM
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Free Chlorine: 11.5
Combined Chlorine: 0.0
pH: 7.2
Total Alkalinity: 40
Calcium Hardness: 350
CYA: 90
Salt: 3000
Temperature: 72°F
CSI: -1.22

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[ShallowWater]

Things are looking Trouble Free!

Latest Test Result Summary:
FC: 7.5 (2 minutes ago)
CC: 0.0 (2 minutes ago)
pH: 7.8 (2 minutes ago)
TA: 80 (2 minutes ago)
CH: 375 (2 minutes ago)
CYA: 80 (2 minutes ago)
SALT: 3000 (2 minutes ago)
TEMPERATURE: 69° (2 minutes ago)
CSI: -0.11 (2 minutes ago)
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