Quote Originally Posted by Water_man View Post
0.2 ml is about 4 drops. Although by your routine you dilute 1 by 10,000 as chem geek suggested, you compromise on the accuracy significantly by dropping in only 4 drops.
I wouldn't measure anything less than 1 ml - that's about 20 drops. You can do two dilutions of 1 ml into 34 fl oz and you get your 1 in 10,000 dilution.
I'm not using drops--the eyedropper is marked off in .1 ml units, but starts at .2 ml. It's a marked line. Besides, if my LC tests at 15% or 12% I don't care--schocking your pool isn't an exact science nor does it need to be. But, like horseshoes and hand-grenades, close is good enough.

But if the LC has degraded and tests at 5%, it will certainly be captured.

Besides, for greater precision, using my method, all you need to do is pour five of those 2 liter soda bottles worth of tap water into a five gallon bucket and use the eyedropper at the 1.0 ml level. Takes a little longer.