CYA Test

[JohnT]

Is cya level a color type test or a digital computer readout? (I'm beginning to wonder if this particular guy at Leslie's might be color challenged.)
PAT

8 days ought to be long enough. The CYA reagent clouds the water. The deeper you can see a dot at the bottom of the tube, the less CYA you have. The tube is graduated to read CYA level.