Hunter 310 head, raw water hook-up

fxg88k

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Nov 16, 2014
4
Hunter 310 Port Washington, NY
I recently purchared a Hunter 310. The prior owner replaced the manual head pump but ran the raw water intake line directly from the thru hull to the pump intake, bypassing the vented loop. Is there a problem with this?
 
Sep 4, 2007
776
Hunter 33.5 Elbow, Saskatchwen, Can.
I don't see a problem here as long as you have a seacock on the thru-hull. I just changed the lines on mine and only the vents were looped. The intake goes straight to the pump and the line between the bowl and holding tank is vented.
There are manuals online that show how the system should be hooked up.
 
Last edited:
Feb 26, 2004
23,067
Catalina 34 224 Maple Bay, BC, Canada
The raw water intake SHOULD go to the pump. The vented loop goes between the pump and the bowl.

Every single manual head instruction manual has a drawing of how to properly plumb them.