Quote Originally Posted by ddxsinxcosxdx

By root computation, I came up with 1ml = 264 ppm. Does this seem reasonable to you?

The thought of getting an identical amount of any liquid poured every time just doesn't happen. I have no problem getting a meter and testing, but to use it as a guideline, I would rather go with computation.... maybe im just crazy.
If you use your computation, you will be wrong every time....why??? Because not all formulas are created equal....and not all formulas are given in equal portions, only the micro and trace....N-P-K's will exceed the dosages before and after your cal mag and liquid k cap at 5ml per gallon....

The example I gave earlier was a real measurement example, not just made up numbers.... I literally did the steps while writing the post and those were the numbers I came up with.... Now after reading that you want to use your computation, I decided to measure the liquid k at 1.25ml per liter.... The result was a ppm of 70.... So you see why I recommend a ppm meter.... Don't let $20 stand in the way of you knowing what your ppms are.... If I had your exact nutes, I'd tell you what the PBPG and PBPB are too.... So for now, know that the LK and CM give you 70ppm for LK @ 1.25ml per liter and 225ppms of CM @ 1.25ml per liter....

Here's an example of what your nute recipe should look like....

Week 3 veg 4-500ppms per gallon
PBPG - 5ml
CalMag - 2.5ml
Liquid K - 2.5ml

At 1/2 strength of cal mags recommended strength and at 2.5ml per gal of Liquid K, you're at 182ppms or so....depending on the ppm strength of the PBPG, you should add accordingly to reach the 4-500ppms for that week.... Your N-P-K should always be more than your micros....

CGI::::::