The most likely reason your Hobie Livewell Primer wont pump is the pump is sucking air or not making enough head to draw the water up the tube.  The smple answer is to buy the Livewell Primer from us.  However it is a good idea to inspect the seal around the tube that goes from the livewell pump to the water.   Also confirm the tub is facing forward so that when you pedal it pushes water up into the pump.

The livewell pump shaft was cut by Hobie to order so that it fits this application.  There is an o-ring that seals the bottom pickup where it meets the pump shaft (see diagram) .  Often this o-ring is bad or when Hobie cut the pump shaft they accidentally cut it at a slight angle and the o-ring then fails to seal.  Wrapping teflon tape around the TUBE that pushes into the bottom of the pump will fix this or you have to carefully file the shaft flush so the o-ring seals.

If the pump is not running the issue is likely an electrical issue.  The Hobie Livewell pump uses a 6 volt electric motor to power a 12 volt bilge pump to reduce the speed some.  Often the wires become corroded.  We sell a terminal that connects to a standard battery saving you money if it needs to be replaced.