i cannot get water to come out of the sink on 12volt, I have blown air
thru the pipe.....it's clear.... the switch works. the pump ...pumps, i
have taken the hose loose, its pumping

how strong should the flow be out of the pump?

I have hooked a battery charger to the aux battery to prove it works with
a strong 12volts

so what is the dilla-o on the pump?

I have tried priming the best I can, so and scoop on this?