**Does anyone have any ideas where we can start looking before we drag it to the repair shop?** We have a 2014 Fun Finder 266KIRB travel trailer. After our last trip on July 4th we emptied the gray and black tanks. It has not been used since then. Yesterday we were moving it up a few feet to let it sit on a different part of the tires. We noticed the underbelly bulging a little. Pushed the liner up and about two GALLONS of water came down on our heads. Thank goodness it was not grey or black water. Definitely clear almost cool water which is strange because we are in Florida. Absolutely nothing is wet inside the trailer. We have had a lot of rain but there is no indication it is rain coming in and going down there since there isn't ANY water inside. Called our useless dealer (btw they no longer sell Fun Finder). Said to bring it in (70 miles from home) and they would take a look. We are thinking of filling up the fresh water tank (since the water was clear)and seeing if the water accumulates again. Maybe we have a leak in the fresh water line. We don't have any idea how long the water has been sitting there. We are guessing it is only since our last trip. It is too much work to take down the underbelly since there are a lot of hose and wires screwed into it. We appreciate any insight if anyone has had this issue.

We have found that rain water runoff can go in all sort of directions. It can run down the side of the rig and follow the contours and drip to the ground not even close to where it started. My guess is rain water is making it's way in there.

Korbe-Thanks for your input. We have had a LOT of rain this summer. We will wait for our next torrential downpour (which will probably be today or tomorrow) and recheck the underbelly. Maybe we can follow the water runoff and try to figure out how it could be getting inside the liner. Our concern is how to completely dry it out under there so we don't get mold.

We had the same issue with our older TT and it was water from the roof leaking down through the wall and collecting in the underbelly. The water could be coming from anywhere and will likely take some thorough digging. I starter at the bottom bu cutting the fabric from the underbelly, removing the insulation and following the rot. Unfortunately, the previous owner neglected this trailer long enough to do major damage.

I had a water problem with my 5th wheel on two occasions.The first when it was new I noticed water in my underbelly after I would fill the fresh water tank. The factory did a poor job with the connection from the fill port to the tank. That problem was fixed by the dealer.The second was after the warranty and I found the underbelly material was not sealed at the front of the trailer. I would pick up water when driving in the rain. I lowered the front of the underbelly fabric cleaned every thing and used double sided carpet tape between underbelly material and trailer. Then reinstalled the metal strip that was used to originally hold the fabric in place.

check your vent topson the roof they could be missing or damaged water could be following the outside of the pipe down in heavy rains

Water collecting in underbelly | Good Sam Community

15 Replies

newman_fulltime
Explorer II
Aug 17, 2015
check your vent topson the roof they could be missing or damaged water could be following the outside of the pipe down in heavy rains
RCMAN46
Explorer
Aug 17, 2015
I had a water problem with my 5th wheel on two occasions.

The first when it was new I noticed water in my underbelly after I would fill the fresh water tank. The factory did a poor job with the connection from the fill port to the tank. That problem was fixed by the dealer.

The second was after the warranty and I found the underbelly material was not sealed at the front of the trailer. I would pick up water when driving in the rain. I lowered the front of the underbelly fabric cleaned every thing and used double sided carpet tape between underbelly material and trailer. Then reinstalled the metal strip that was used to originally hold the fabric in place.
RVcircus
Explorer II
Aug 17, 2015
We had the same issue with our older TT and it was water from the roof leaking down through the wall and collecting in the underbelly. The water could be coming from anywhere and will likely take some thorough digging. I starter at the bottom bu cutting the fabric from the underbelly, removing the insulation and following the rot. Unfortunately, the previous owner neglected this trailer long enough to do major damage.
twofacelady
Explorer
Aug 17, 2015
Korbe-Thanks for your input. We have had a LOT of rain this summer. We will wait for our next torrential downpour (which will probably be today or tomorrow) and recheck the underbelly. Maybe we can follow the water runoff and try to figure out how it could be getting inside the liner. Our concern is how to completely dry it out under there so we don't get mold.
korbe
Explorer
Aug 17, 2015
We have found that rain water runoff can go in all sort of directions. It can run down the side of the rig and follow the contours and drip to the ground not even close to where it started. My guess is rain water is making it's way in there.

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Water collecting in underbelly

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