I have a 2010 Zinger trailer and all of a sudden have been getting mice in it. All last year no issue at all. We have put the electrical cord in (as I know this is a common spot) we even spray foamed the opening in the electrical box to the trailer. I have mouse repellent in the trailer itself. Now that all holes are plugged they are getting in and coming up under my sink, we have not found poop anywhere in the trailer, so this leads me to believe that they get in and have no where to go but under the sink where the trap is. Funny thing is its been like 5 days since the last one was in there. I can't keep saying they were in there from the initial instance. Is there any way, in the underbelly (even though its supposedly enclosed) that they can be getting in? Help!!?
You going to have to look under and around your unit very completely. A mouse can get in through a 1/4" hole. Check in front of back bumper, there is usually holes in the frame there. Also if there is any space around plumbing where it comes through the membrane on the bottom, seal it up. If there's a hole, they will find it.