Water leaking into rear of trailer

Yooper

My 2005 has developed wet floors at the rear, under the cushions. Seems to happen when the trailer is stationary.  I tried caulking the rear lights, no luck. Any ideas?

Sharon_is_SAM

Can you take a picture?  Do you mean the floor is wet in the area under the bench?

Michigan_Mike

https://tab-rv.vanillacommunity.com/discussion/7591/new-tab-320s-does-stain-indicate-leaking

Yooper

Thanks, I will go after the tail lights with better caulk.