Besides checking the battery voltage, if its been used a few times. Take the upper half of the pump out by pressing the red tab and turning the body of the pump 1/2 turn counter clock wise. Once you have it appart check to see if there's eel grass on the shaft. I had that happen, the impeller looked good but the shaft had a bunch and it was not visible with the pump assembled. The resistance on the shaft slowed it down.

You have not done that yet?
 

I try to break the pump down every trip so I don't have any surprises . Top is quick release .

Its seemed weak to me.. thanks ill try that. It brand new just got it 2 weeks ago and been put once never got it to prime on the water.

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You don't have a good suction, there is a leak somewhere. Try some GOOP on the connection between the intake and the tank. Also, you do know these pumps are rated for 12V, so you can always try that. Or get a new pump, they're cheap. Or return the tank for another one.

That crossed my mind too... would i kust need a 12v battery and go or are any changes needed... i took it back to the place i got it from and thwy just builr me a priming pump

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Faulty suction could explain a bit. If there is air in the pump it will be noisy and pump very slowly like you have pictured.


Make sure the pump is put back together correctly and you pedal faster a little longer. It will completely fill the pump. Make sure your battery is fully charged.