Is anyone else using the lamotte phosphate kit with the octet comparator. I seem to be having a little trouble making out the colors, especially in the high range. Has anyone come up witha tip for making it a little easier to decipher the colors? So far the only thing thats come close is natural sunlight thru a window but even then I can't really tell the difference between 1.5 and 2.0. I can see the difference on the comparator itself, the problem lies in getting the sample to match up colorwise.

Marcel