Having been guided by a good explanation of the Drop checker and the need for the 4dKH solution as a reference solution by Dave Spencer on TFF, I have a couple of questions. My drop checker is a cheapie from Hong Kong. I'm a right cheapskate, almost Scottish one might say... Anyhoo, it came with a "reagent" solution held in an API test tube My question is that this reagent solution is red/orange in colour and I understand that I need something with Bromo Blue in it. I am putting my new blonde streaks to good use now as I'm guessing that the reagent should be blue in colour? I don't have a PH test kit - can't find it at all, so until I get another one with Bromo Blue in it, will the reagent work instead? Sorry and thanks in advance!!!