Thanks for the advice man !
I guess I should have mentioned something after the cap full comments. In my day I was a chemistry student back in College, I happen to have a friends lab kit that was used maybe once or twice. I had it properly autoclaved from a friend at a lab and then gave them a nice clean. So I didn't actually use a cap

I used a pippette to be as accurate as I could be, as I was doing it I was thinking damn I wish I had stolen a Buret ,Digital pH meter, Hot Plate/Mag Tray. It would make all my mixing and pH'n as perfect as it could be, but at the same time that brings back bad memories of 3 - 6 hr lab sessions doing titration after titration.. boooooring. Back to the real Topic MJ !
Good idea though to use for the nutes as well, I was going to go another route but I think I like your idea better. Thanks man ! And post up around here more often, you input is much appreciated !!
-Tdot