I recently added an anchor washdown pump by teeing into the head inlet hose. While this technique worked well with my previous boat, a Catalina 36, it doesn't on my (new)Hunter 42. The pump is sucking air and I'm reasonably confident its because of the connection to the head, a Jabsco. I'm looking for an easier solution than putting in a dedicated thruhull. Anyone else solve this problem? Perhaps a checkvalve to the head? If the teeing works with some Jabscos and not others, is it worth trying to replace something in the head valve cover? Pete Econ
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Y-valve
Don't use a check valve, you'll just cut off water to the toilet. I can't think of any reason why the fact that the toilet is a Jabsco has anything to do with your washdown pump sucking air...unless a vented loop was installed in the wrong place (between the thru-hull and the pump, instead of between the pump and the bowl) in the head intake...but if you can't figure out what's causing it, you can solve it by replacing the tee that you used to connect the pump to the head intake hose with a y-valve. Just be sure to remember to turn it back toward the toilet when you're through using the washdown.
Don't use a check valve, you'll just cut off water to the toilet. I can't think of any reason why the fact that the toilet is a Jabsco has anything to do with your washdown pump sucking air...unless a vented loop was installed in the wrong place (between the thru-hull and the pump, instead of between the pump and the bowl) in the head intake...but if you can't figure out what's causing it, you can solve it by replacing the tee that you used to connect the pump to the head intake hose with a y-valve. Just be sure to remember to turn it back toward the toilet when you're through using the washdown.
Y valve installation
Pete, I installed the Y valve as shown in the picture. You can get them at WM or order them directly from the manufacturer (a little cheaper and you can get the exact diameter fittings). I don’t have the brand name with me). Peggie, the “infamous” aluminum tape seen on the bottom corner is still keeping the stench inside the permeated hoses. 2 and ½ years and my rudder is still with my boat
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Pete, I installed the Y valve as shown in the picture. You can get them at WM or order them directly from the manufacturer (a little cheaper and you can get the exact diameter fittings). I don’t have the brand name with me). Peggie, the “infamous” aluminum tape seen on the bottom corner is still keeping the stench inside the permeated hoses. 2 and ½ years and my rudder is still with my boat
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