Quote:
Originally Posted by DutchmenSport
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OK, Looking at the floor plan, the bathroom sink is in the middle of the trailer. The anti-syphen valve everyone is talking about is attached to your black tank flusher line which runs from your wet bay to your black tank (only 1 dedicated line). The anti-syphen valve is located right behind the wall of your wet bay, NOT under your bathroom sink.
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Actually many people have found the anti siphon valve under their sink. Yes, the one in your second picture. Mine was inside the wall between my shower and the entry closet on opposite side of trailer from the wet bay/convenience center.