Preval paint system??

The first time I used one, I thinned the paint as recommended and it ran like crazy.

The second time I mixed as per instructions, and was super satisfied.
It was even my first time trying to blend a patch.

The third time the can worked for one spurt. Plenty of air left, but no suck-y from the jar, and couldn't find a clog. New spray head worked ( I found three on the discount table).