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I was thinking the same thing. I'm looking at this and thinking it's around 0.1.mate, this is just a guess but I would hazard a guess at 0.1
phosphate test kits are naturiuoslybad.
But that one looks like it was left in the Sun to fade
I gave up and bought a hanna test kit for my phosphates and could not live without it
I was thinking the same thing but actually saw people recommend against it elsewhere on here. You think it's worth the purchase so far?mate, this is just a guess but I would hazard a guess at 0.1
phosphate test kits are naturiuoslybad.
But that one looks like it was left in the Sun to fade
I gave up and bought a hanna test kit for my phosphates and could not live without it
I'm with you. I need to find another way of testing my phosphates. I agree that it doesn't look like a pure yellow (0 phosphate reading).The fact that the intensity of color is much greater than the reference makes interpretation problematic. I think that it has a touch of green and is not pure yellow. So I would say .03 - .07 and that is without confidence.