Color charts are silly.....

[Rodeo one]

It s always a guessing game for me with the PO4. I d say it s at 1.0? Pic makes it look slightly darker than it is.

 

[Fidgetromeo]

to me even looking at your tube and my colour card, it looks nothing like ANY of the colours.

 

[Old Scales]

LOL Looks like the ammonia test color. Weird? OS/

 

[Rodeo one]

I know, right? The chart goes from light green to blue but at it s highest, the tube is just a darker green. Maybe I need a different brand of test. Or beer goggles!