Drop checker question
I just got my drop checker in the mail today(now that Im out of co2 lol). I received 2 bottles one is 4 dkh and the small bottle is co2 test solution. I read the instructions and it says put 5 drops of the co2 solution in but says nothing about the 4 dkh.
Do I put both in? How much of the 4 dkh?
ps thanks mordalphus nice looking unit and man that wass quick on the shipping :-)