The instructions on the underside of the the lid are pretty simple to follow. Most of us here use the 10ml sample for chlorine tests (saves on reagents plus accuracy within 0.5ppm is good enough). Also, if your sample turns pink after adding one dipper of the dpd powder, adding a second is unnecessary. Test chlorine and ph daily until you learn your pool's behavior, then you can relax to every other day or so (unless you are dealing with a problem of some kind). Finally, the cya test is a little tricky to read correctly. You want bright, indirect light. So ideally stand in sunlight with your back to the sun (your shadow directly in front of you) and view the dot in the comparator by holding it at your waist. You can also pour the sample back into the bottle and retest a second or third time to verify your results.

Oh, and make sure you check out the Best Guess Chlorine Chart in Ben's signature... This will tell you what your chlorine levels should be depending on your cya readings.