Is this much acid demand normal?

BoilerSim

Gold Supporter
Apr 22, 2019
38
Winter Garden, FL
Hi all. Wanted to get your opinions on how much acid my pool is taking to keep the pH in line. I’ve had to add 2 gallons over the past month, or about a cup a day. With each addition I take it to 7.6. The pool is new, with the plaster done in late March. The only material aeration it gets is via the spillover running a total of 30 min/day to cycle the spa water. I have had to add water a couple times due to evaporation in the Central Florida heat, but our fill water has a pretty moderate pH of 7.4 - 7.6. Is this normal?

My test numbers as of this morning are:

FC: 6.0
CC: 0.0
pH: 7.7
TA: 70
CH: 350
CYA: 70
Salt: 3,500
Temp: 83
CSI: -0.18
 
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