[Ken / Claudia]

A point to make, We and that includes me find a wet spot or water leak. But, how did it get there. Remember water always runs down unless forced up by say road spray or broken water pipe. We normally find water leaks at the low point not where it entered and ran or dripped down to get where we found it. Advice, when finding water investigate up, up walls to windows and roof. Water runs inside walls and will not be found unless you look up. In this case the slide wall could be leaking at the window or other place and never noticed until it is closed and then the water pools into the unit. It could be faulty seals allowing water to run down unseen, but, who knows. I would spray the area outside with water, starting low and have someone watching inside.