High TA, CH but pool looks great

salinda

LifeTime Supporter
Feb 25, 2008
149
Los Gatos, CA
Pool Size
37000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Update--The RO was done last Monday. He actually overshot a little, bringing my TA and CH quite low. I pushed them both up plus added some liquid chlorine right away. After a few days balancing, and adding CYA and salt as well. I've posted my log after the filtering and the most recent log today for comparison. I also discovered in this process that there was something wrong with my TFP Test Kits refills this year (both were reading high), so I had to get Taylor reagents for CH and TA. Now jives with others' test of my water. Pretty happy!

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Test Results 06-15-2021 @ 04:24 PM
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Free Chlorine: 3.5
Combined Chlorine: 0.0
pH: 7.8
Total Alkalinity: 90
Calcium Hardness: 230
CYA: 50
Salt: 4050
Temperature: 84°F
CSI: -0.09


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Test Results 06-08-2021 @ 11:49 AM
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Free Chlorine: 0.1
Combined Chlorine: 0.2
pH: 7.6
Total Alkalinity: 38
Calcium Hardness: 150
CYA: 5
Salt: 1340
Temperature: 76°F
CSI: -0.68
 
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