Water in coroplast

[GrandpaKip]

When I jacked the camper up to work on the brakes, water came out from under the belly coroplast. Or so I thought. It actually was coming out of the tunnels in the stuff. I took a few screws out and the top was completely dry.
Really big “Whew”. Not a leak.
First time I’ve ever seen that happen

[GrandpaKip]

Waaay too many holes to plug. Don’t think it’s hurting anything and just gonna let em be.

[LVJJJ]

Had a 2000 Trail-Lite that had that stuff underneath the small slide out. The tunnels would fill up with water and when I slid the slide in, the water would run out on the floor. Took a while to figure out where the "non-leak" was. Plug the ends.

[MFL]

Yup, likely from towing in the rain. If a hard rain, water seems to find any entry point.

Jerry