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Old 09-04-2012
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Re: Vented Loop Design?

Question on the vented loop:
The vented loop on the water line to my engines water injection elbow has the vent line exiting through the hull of the boat at the stern. It has worked this way for 30 years. The vent line is somthing like 1/4 inch plastic tube. The through hull fitting has no seacock.

I am thinking of fitting a seacock but does the vented loop need to run out the hull? At some points of sail and sea state, seems the through hull could be under water.
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