I just got the TF-100 testing kit. When testing Alkalinity is says to "add R-0009 one drop at a time, swirling between each drop. Wipe the tip of the bottle after every drop with a damp cloth."
I am curious why this is done as it is not specified in any other test and how important it is to do?
It's pretty annoying when you are trying to add a drop and swirl after each drop.
I know...first world problems. But it's bugging me so I thought I would ask.