rain water leak basement storage

Harveyj wrote:
Try placing a battery powered lantern or the like in the compartment and wait for night when it's dark. Sometimes you can see the light coming from any openings, bad gaskets, etc. I found one on our Minnie using this method...replaced the gasket and all was well.

Works Great! I did this WITH the dealer after they said they couldn't find a leak in my old Vectra. A 100 watt light bulb works great and the leak was plain as day....as long as you looked at it in the dark...LOL

Mine was a similar leak, rear basement compartment in a slideout. Turned out to be a seam where the metal support frame and fiberglass wall material met at the rear (towards the center of the coach laterally). Never saw it using the light in a compartment method, but did by using a targeted water spray (didn't take much pressure) to see where it was coming in. It got really wet when driving in the rain, not so much standing still, but did get some seepage even then - probably because the rain could get at it.

That said, I used a butyl caulk (smoothed and tucked into the seam) to seal the seam and it's held for several years now.

Try placing a battery powered lantern or the like in the compartment and wait for night when it's dark. Sometimes you can see the light coming from any openings, bad gaskets, etc. I found one on our Minnie using this method...replaced the gasket and all was well.

I have the same leak in the bay just behind the driver drive wheels then everything in the world cocked everything I can think of it still leaks