Water Testing Instructions on One Page vs Extended Test Kit Directions vs TFTestKits supplied instructions all say something different on how to mix R-0013 with pool sample.
Supplied instructions say, "Mix then wait at least 30 seconds. Shake once more."
Extended Test Kit Directions say, "Cap and then shake the mixing bottle for 30 seconds."
Water Testing Instructions on One Page says, "Shake about 30 sec; let stand 2-3 minutes; briefly shake again."
I understand that it may not make a difference but in my messed up mind these three statements say very different things.
And as subjective as everyone makes this test out to be these discrepancies are a splinter in my mind