It's forecast to be in the mid-20s tonight here in SE Missouri. The RV tech at our dealer suggested that I disconnect the ice maker water line when it gets below freezing. I've disconnected the line by the water manifold but can't figure out how to disconnect the line at the back of the refrigerator. As shown in the picture, there's a grey plastic connector that connects the line but I don't know how to disconnect the line from the connector. Any ideas?
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