I would expect that it is sucking and that a valve is closed, not allowing water or air into the house. Shouldn't be a valve there though......
Has it worked previously?
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2016 Jayco Eagle HT 29.5BHDS (ordered 12/30/15, delivered 3/8/16)
2015 F-350 crew cab, short bed, 6.7L PSD, Pullrite Superglide 3300 hitch
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