It's been around two weeks since we filled our new pool and I am constantly checking it to understand its temperament.
For the last couple of days, the ORP reading has been around 540 to 620 - never reaches 650.
The Chlorinator automatically gets turned on by the Hayward control system if the ORP is below 650. So, I am seeing constant chlorination for the last couple of days or so.
FWIW - all equipments are new - the probes are only a couple of weeks old..
My current readings are:
FC - 11
CC - 0
TC - 11
pH - 7.5
TA - 100
CH - 300
CYA - 55
During the last week, my ORP values were almost always around 700+... even if the ORP reading came below 650, it would go up to 700+ within an hour or so.
But, during this week, the ORP is not moving above 620.
All this time, pH was a constant 7.5 - checked very often with TF-100
I also checked every few hours last night 7 pm to 5 am - the ORP never went beyond 620~~ and the chlorinator was constantly running.
Should I turn off the chlorinator and do an OCLT this weekend?