ballast not working

[wannagobak]

you can hear the pump running but there is no water moving. Front is working fine. Are there two intakes? Do these get clogged easily, or?

[GRAVITY04]

what boat are we talking about

[NAW]

Have you tried 'priming' your pump?

Turn the switches on, and drive the boat up to plane....this can prime the pumps. You can fill while driving, or stop once they start pumping.

[GRAVITY04]

Check the small valves in the inlet. I had the same problem and found that the inlet to the pumps you have small valves that you can open and fill as you drive

[jflock2]

Priming the pump is a must, especially if you trailer the boat. The fill tubes drain when she's out of the water...

[SUPRA SAM]

Mine air lock all the time. Sometimes it takes several tries to get them primed and sometimes they fill right up. Just depends on their mood!!! Just keep trying.:)