Here are a few pictures of some of my exhaust system components. The vented loop has no anti-siphon valve, it is truly vented. The second picture shows how the hose from the top of the loop attaches to the galley sink drain plumbing. The stainless check valve is located high in the port cockpit sail locker. The pictured external flapper is not my boat but I have the same thing.
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Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Last edited by ndutton; 12-14-2018 at 11:30 PM.
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