Water damage

[Joycehedin]

We just purchased a 2003 airstream trailer, international 22' and pulled up the
carpet in front of the kitchen sink. We found water damaged wood directly in front of the sink and under the sink. Also water stain out side the bath room door. The kitchen sink is not leaking,the roof is not leaking. Do we need to remove the toilet and look under it? Has anyone had this problem?

[Belegedhel]

Welcome to the forums!

So, yes, I guarantee that someone has had mystery floor damage due to a leak from roof, vent, window, door, sink, plumbing, waterlines, tanks, etc..

The first thing you need to figure out is whether your damage is old evidence of a leak, that has already been repaired, or evidence of an active leak where the floor is still regularly getting wet. You might try hosing the trailer down and making sure that you don't get water inside the trailer, then thoroughly test the plumbing to determine if water is leaking from any of the water lines, run water into your grey tanks and flush the toilet into the black tank and so on. If you can convince yourself that you have neither an internal or external leak, you can focus on deciding whether your floor is damaged enough to warrant a patch.

[Protagonist]

It could be something as simple as the PO overfilling the gray tank (possibly more than once); the excess water has to go somewhere, and waterlogged carpet will retain water for a long time, leading to water damage in the wood underneath.

[Joycehedin]

Thank you for your help. What do you mean by PO?

[ljmorr3]

Previous Owner

[Panama Red]

Not sure if this applies to your model, but on my '74, where the plumbing stack vent exits the roof of the camper, there is a little aluminum chimney looking thing. There is a rubber seal under that that keeps water from leaking inside your trailer down the plumbing vent. They should be replaced every five years or so... Something or check.

-Red, covering the bases...