Low Alkalinity to keep PH in check

darknight201

New member
Sep 27, 2023
1
Philadelphia, PA
TLDR;
Why does my TA need to be so low to keep my PH in check?
FC 6.0
CC 0
PH 7.8
TA 50
CYA 70
CH 430
salt pool

Long Version:
If I don't keep my TA all the way down at 50, my PH always wants to rise very quickly. At 50, I need to add MA about every 7-8 days to bring it down from 8.0. If TA rises to 70 I'll be adding MA every day or two to keep PH in check. Why does my TA need to be so low? I see posts on TFP about rock solid PH at TA of 70 or even 80.
 
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