Water leak inside

rmcarthur

I own a 2016 T@B 320 CSS. Arriving at our destination after driving about 25 miles during a bit of rain, and the road being drenched, I noticed a water leak on the floor directly in front of the cabinets just outside the wet bath. The water appeared directly below the cabinets on the floor as though it seeped through the floor. Am I correct in assuming that it may have come from underneath the camper, as though the force of the rain from the road made its way through the floor? Has anyone else experienced anything like this? We have owned this camper over seven years and camped at over 50 campgrounds and have never experienced this dilemma. We have not used the camper in the same conditions since this happened, so we don't know if it was a fluke - nor am I going to assume it was a fluke. Thoughts??

pthomas745

This is always hard, because the water that you see "now" may not be the place the water entered, and is simply at the lowest point of the trailer.

In general, yes, there can be places where water can enter: through the fan vent, if it isn't perfectly secured or somehow loose. Under the door, which over time can also be a bit out of alignment.

You should have a close look at all the spots in the trailer that were the usual suspects for water intrusion. You might have a leak in one of the wheel wells, for example. So, take a really close look at all the areas under the benches and see if you can spot any other staining, etc.

There is a caulking guide that at least shows you where you might want to look for the various "known spots" for leaks.

Caulking Guide

Here is a thread about a door leaking, but it is for a 2021. There is a discussion about how this might have happened.

Door Leak and test

You might also crawl under the trailer and have a look at the "coroplast" cover and look for obvious breaks or cracks in the plastic. If there is wear and tear along the front edge behind the tub, that might allow water to be driven in under the coroplast.