Join Date: Feb 2010
Location: Narragansett Bay
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Re: Head hoses
I'm not sure if the waste line goes up to a vented loop or not. I know there is an external vent, but I'm guessing that it is the vent for the holding tank.
The external vent is most certainly the tank vent. The vented loop is a different animal. It's an anti-siphon device. Can you imagine a siphon starting that is backflowing into the head.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.