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Beware when you camp for extended period of time with the rooms out tree sap and debris will settle on the room.

You should check the mating surface for sap where the seal inflates and contacts the room when the room is in. The seal could be stuck to the room so when you run it out it could pull the seal out of the retainer.

Preventive maintenance by waxing the contact surfaces will save you time, money, and especially frustration.