Colors bleed and to judge the quality of water by shade of a color is ridiculous. For some reason I thought there would be better logic to this test kit like black if something is wrong and white if it's good. In this test, you go by shades of the same color. There is no way this would ever be possible due to color bleeding. How in the world can it be accurate to compare light orange as bad to light medium orange as good? This is junk.