@Mike20132 Well, that is disturbing.......I have never had any problem with MC2 not dissolving completely, at least in amounts of 5Gms or less per gallon. You might try adding the MC2 to the water in very small amounts....letting it dissolve completely before adding more. I remember when MC2 first came out, several people that were mixing large amounts reported that it wouldn't go into solution easily....one person heated the solution and finally got it all to dissolve.
That being said, I do think there has to be a wide variation in dosing the various chemicals, etc that compose MC2. I you accept the premise that the different sizes, shapes, and colors of the components of MC2 contain different chemicals or substances, it would be almost impossible for the amounts of each to be constant. I recently scooped out 10 different 5Gm scoops and spread them out on paper to better see the components. This was after shaking bag well to mix it and just pulling out 5Gm scoops at random. Let's just take the little white balls for example as these are the easiest to see.....I have no idea what these balls contain but I do know that the amount of them one gets varies wildly from scoop to scoop e.g.the ten scoops I pulled contained from three of the little white balls to twenty of them!
I feed roughly a gallon every three days using 4-5 Gms of MC2. Let's say that the little white balls contain nitrogen[I have no idea what they contain.] If we take the low and high of the samples I pulled, it means that one feeding has only 3 balls of nitrogen while three days later, I might be feeding over six times as much!
I still think MC2 is an excellent product.....I just wonder about nute amount variation, especially for those who are using small amounts per feeding.