I have a large syringe (minus needle) I bought online that has graduated marks in 5 milliliters increments. I attached a skinny plastic hose to the end to reach into the bottom of nute bottles. I just stick it in the bottles, suck up what I need, expel to air bubble, and squirt it into the mix water bin. After I squirt it then suck/squirt the mix a couple of times to free it of concentrate. Paper towel dry the outside. It has a 60ml capacity. You can find larger ones online if you need to.
I got tired of spilling my "precious fluids"! They are dang expensive ...LOL! Plus, some of them are intensely colored and stain things like tables, chairs, floors, carpets, pets...LOL...if you spill them!
For smaller volumes I have an graduated eyedropper that has a 1.0ml capacity and is marked in 0.1ml increments.
For that medium-sized volume, I have a turkey baster that has graduated marking in ml's that is 25ml marked in milliliter increments.
For those liquid amendments (yucca, liquid kelp, liquid iron, liquid micro-nutes, etc.) that give units in English measures, I have a shot glass that is marked in graduations on all sides that shows different increments - ml's, tsp's, tbsp's, and oz's.
Another way to do it is: If you pour your concentrated nutes in plastic squeeze bottles it is easier to manage. Like the kind catsup and mustard come in in restaurants. They have a nice little cap and everything and come in diff colors (if you like that sort of thing). You can get them at the Dollar store. Just mark them so you know which is which.
EPLS (Easy Peasy Lemon Squeezy). I am a magic man (but dumb clumbsy too)! According to Nana (God Rest Her Soul) - "...like a bull in a China shop!"
@Krissi1982 ,
@Paul Squiggle