[tglass]

Thanks Reel Magic.
I did remove the filter and cleaned the screen and re-installed even though it wasn't that dirty. At that point the filter was empty of water and activating the pumps would not even fill the filter. I then removed the air vent hose and got the filter to fill with water only after covering the vent tube with my hand (which seems counter-intuitive) but still not enough to prime the system. I did have the faucets open too.

I'll remove the filter again tonight and make sure its properly seated and try again.