Why isn't my fluval 306 Primer work!?

MermaidMan

Feeder Fish
MFK Member
Apr 12, 2013
50
0
0
Cali
When I pull it up and down to prime, it doesn't have any resistance of water. Like its not pushing it out. It feels like its pushing nothing.
My fluval 306 is only 3 months old. I was previously priming it a lot, then it just stopped.
The hoses are cut to fit the tank perfectly.
 
zoomed.com
hikariusa.com
aqaimports.com
Store