Question / Concentrate Solutions and ppm

[shadytrake]

Okay, I'm a little mathematically challenged and I have a question about the concentrate solutions and ppm.

I took my 20-20-20 powder mix and created the concentrate solution using the First Ray's direction of 3 pints hot water per 1 lb of net weight fertilizer.

Here is where I get confused. How do I measure for mixing up my fertilizer solution?

Is there a ppm measurement?

Quote from Ray's
"You now have a 25% concentrated solution of your original formula. In other words, if the original powder was a 20-20-20, your solution is one-fourth of that, or 5-5-5."


I know I'm missing a step in here somewhere.