Numbers check Jacuzzi J-345

Not getting any luck in spa section, hopefully I can in this section

Jacuzzi j345

1400 litres

temp 104 hot tub in use
temp 100 not in use
ph 7.4
TA 80
Ch 80
CYA 30
FC 9
CC .5

chlorine is 10.25 in strength

Generally 2 bathers approx 9pm. No swimsuit. Not showered. After hot tub FC falls to around 3. I bring FC back to 9 at 10pm

between 6-10am I find I need to add 90 ml to bring FC back to 9. does this seem right?

Around 5pm FC sits around 5

Testing with Taylor 2006
 
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