My 309 is a 2007. Hull # 92. What is the proper procedure to use this sump? I have seen some posts allude that the valves under the head sink need to be in a particular position. My pump turns on but water flow seems to be blocked.
My Jabsco has that, too. When it jams on the down-stroke, a push to the right or a quick flip of the >wet>dry will do something to the valve inside. I have not repleced the valve, nor the pump to clear this, but it is coming... soon. Meanwhile, I push the lever to dry BEFORE I start to pump....When pumping the head out there is often back pressure on the Dry downstroke unless I push on the cam lever harder into the dry setting. Any suggestions on how to troubleshoot?