So i am having issues with the ORP sensor in my sense and dispense system.
The OPR doesn't make sense sometimes it is showing 600 when the fc is 12 and 630 when the fc is 3.
So i contacted Hayward support, they asked me for the pool test result which i gave them
CYA = 70
pH = 7.5
TA = 110
CH = 250
FC = 10
CC = 0
SALT - 3400
Then they ask me to get the result from a pool store, so i did and the result was the same as mine.
So now they ask me to find out what is the value of the pool's phosphates, i had to go to the pool store since i don't have that test at home the result was 200.
Ha ha they say, you need to reduce that value this is why the ORP doesn't work.
Why would phosphates interfere with the ORP operation? and if this is correct why doesn't it clearly say that in the manual? i am really disappointing with Hayward support.
The only way to reduce phosphates is to replace the water, right?
In California and especially were i live it is forbidden to replace the water in the pool, so what do i do???