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post #12 of Old 09-04-2012
casey1999
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Re: Vented Loop Design?

Quote:
Originally Posted by Maine Sail View Post
Just be sure your "exit" hose does not have any dips in it that can collect and hold water. With a bad impeller even a small "trap" can cause a siphon.

For engine vacuum breakers I prefer the ones made by the Scot Pump Co. as I find they are far more trouble free than a duck bill....

You can buy just the vacuum breaker:

Or the whole thing:

I tend to just make custom ones:



This was Ericson's idea for a siphon break and it sprayed salt water all over the engine when the brazed copper tube failed. It was also mounted under the cockpit:


A few dollars and 30 minutes later a new one that is significantly more robust replaced it.
Main Sail,
In the last (bottom pic) where does the vent hose go?
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