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Old 04-09-2017, 04:09 PM   #1
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HopelessNewB's Avatar
1976 Argosy 26
Dallas , Texas
Join Date: Mar 2017
Posts: 13
How to pest-proof?

Not sure if this is the right forum...I recently bought a '77 trailer. There is strong evidence of previous mice colonization as I start the clean-up. What is the best product and method to go about sealing up every...single...tiny...entry point?
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Old 04-09-2017, 05:35 PM   #2
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2000 25' Safari
Davidson County , NC Highlands County, FL
Join Date: Aug 2006
Posts: 4,480
There is only one way to know what to do. Get under the trailer and look at what is open.

In the exterior of the belly pan metal:
Caulk small places that are large enough for a mouse (any water that gets inside still needs to weep out so not water tight)
Re-rivet loose metal
Stuff large openings with brass wire wool, putty tape, or similar material.
Install coarse metal screen wire over vents that are required to stay open (like a fridge vent thru the floor)

Do not seal air tight around openings in the interior wood floor. They are needed for return air from those ducts that go into the belly pan.

add edit:
FOR YOR SAFETY wear safety gear when you get into cleaning up, read here:
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
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Old 04-29-2017, 04:15 PM   #3
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2002 27' Safari
Churchville , Maryland
Join Date: May 2008
Posts: 29
All above is good advice. I found locating entry points to be a multi-year challenge. One that surprised me was around some sloppy work on the holding tank dump valve shafts. Some copper flashing was cut to cover the holes. Aluminum would also be good as it is soft and easy to work with. The metal was attached using automotive trim two sided mounting tape. Also had mice entering through holes in the frame just behind the hitch coupler. These holes were filed with kitchen stainless steel scouring pads. A hole was found where the AC power cable entered. "Great Stuff" foam was used to fill that hole. Spend some time under the trailer and close any hole that a pencil will go through. It is possible to keep them out.
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Old 04-30-2017, 09:47 AM   #4
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1967 17' Caravel
Oak Creek , Colorado
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Like cable said the A frame is an entry way right to the belly pan then into the coach. Also the slots the step slides in & out of are an entry in to the belly.
I made covers out of aluminum for both areas on my 67.
2 sets of covers for the step, one set open, one set closed position.
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Old 04-30-2017, 10:01 AM   #5
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2017 26' Flying Cloud
Tampa , Florida
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If you have a boat store near you I'd suggest bronze wool over steel wool since it doesn't rust.
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