I have been testing the CYA levels of the pool water in several conditions and each time have gotten a different number.
On a cloudy day: 35
In shade: 40
In full sun with the sun at my back: 50
I'm interested in why this happens and in which condition is best to test CYA.
Thanks for your help.
On a cloudy day: 35
In shade: 40
In full sun with the sun at my back: 50
I'm interested in why this happens and in which condition is best to test CYA.
Thanks for your help.