Help!!! Hagen NO3 and P04 test kits
Anyone using the Hagen NO3 and/or PO4 test kits? I am wondering what's the trick to dispensing the correct # of drops from bottle #3 -- the glass bottles. My experience with simply turning the bottle over straight up and down, I seem to always get too much or too little solution in my test tube - I find it hard to control the flow. If I turn the bottle at an angle, I seem to have more control, but the drops don't appear to be the same exact size. Anyone have any suggestions? Thanks in advance!