Reading PH results


Well-known member
Apr 25, 2020
Oro Valley, AZ
Is there a proper way to hold the container to read the PH level properly ? Kind of like when you hold the CYA tube at belt level with sun at your back ? Asking as I have issues aligning with the color matching myself and always asking my wife for a second opinion This morning the test water look orange which is not really on the color chart -

Also, my ALK is reading 70 - just as a FYI.

thanks !


TFP Expert
LifeTime Supporter
Jan 6, 2010
San Dimas, CA (LA County)
I like to hold the block at arm's length with a white background (Some plastic stacking chairs do well for me) and squint until things get blurry and the numbers aren't readable. Then the colors seem easier to differentiate.