Hypro d252 pump on JD 750 drill
I bought a used 750 no-till drill and it came with a liquid fertilizer system, but obviously no instructions. I have a Hypro D252 pump, a 300 gallon tank, and a manifold by Blumhardt. The pump is driven off of the seed shaft. What do I need to know to calibrate this set-up? Will a change in speed affect the rate or pressure? How do I regulate the pressure and do I need a return line?
This is my first attempt at using liquid and either I'm confused or missing something.
PS the drill also has the half speed kit if it matters.