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Old 11-04-2014, 09:49 AM   #15
Nomad Willy
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City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,743
Lots of stern bearings are equipped w an angled hole at the front of the bearing housing that scoops in water for the cutlass bearring. If your keel is configured so a hole could be cut near the head of the stern tube or at least ahead of the cutlass you'd get a constant flush while underway. But if you needed to plumbing from the inside of the hull to the outside of the stern tube probably would be a project breaker. Also instead of a pump in an ideal place (mostly so) you could put a small through hull w a screened scoop and a small hose to the PYI hose barb. You'd have another through hull and a small hose but far less trouble than an electric pump. You could vent to burp air at the high point of this hose.

Also you could use a clear hose for a vent tube and monitor the WL in the hose to insure the PYI seal was flooded. But burping would accomplish that however less convenient while underway.
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Eric

North Western Washington State USA
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