- May 3, 2009
- 71
I am confused about the CFI numbers on the pool calculator.
My pool: 20,000 gal. Intellichlor Salt Generator Plaster surface (new plaster 3 weeks old)
FC 5
pH 7.5
TA 120
CH 340
CYA 70
Salt 3400
The CSI number on the left is -0.28 and reads "balanced"
The CSI number on the right is -0.32 and reads "potential for corrosion"
Why is there two numbers?
Thanks
My pool: 20,000 gal. Intellichlor Salt Generator Plaster surface (new plaster 3 weeks old)
FC 5
pH 7.5
TA 120
CH 340
CYA 70
Salt 3400
The CSI number on the left is -0.28 and reads "balanced"
The CSI number on the right is -0.32 and reads "potential for corrosion"
Why is there two numbers?
Thanks