You did use 5 drops of A; mix for 15 sec; scoop of B powder and mix for 1 min; scoop of C powder and mix for 15 seconds; then time 9 minutes.....right? Just hard to believe it is clear!Tried the other way too and deff not a lick of nitrates, it just worried me that there was always still a little residual dust looking reagent on the bottom reguardless of how vigorously I shook it.