Leak

[Nelly]

Hey, I have a 2021 3121RL and had the same problem water in the underbelly. I also believe it came in somewhere while we were driving in heavy rain. I had to poke holes in the bottom to drain the water. Happen twice! Couple of questions, is there insulation inside that gets wet and could cause mold? Also was a sign of hydraulic fluid in the water that came out? But no lose of fluid in the reservoir ? Any suggestions on these questions? Thanks Rich

[Kfinnert]

Hydraulic fluid could indicate a small leak in a hose, or it could be a loose fitting. But, then again, it could be residual from a previous installation or repair to the hoses, bleeding the lines to eliminate air, or something from the factory. Water getting into the underbelly of the rig would have washed out some of the fluid.

Based on my experience with my 5th wheel's hydraulic system during service and repair; and having spent many hours on tractor seats working fields and vineyards too, hydraulic fluid seems to seep from God knows where and you'll notice it now and then.

The best recommendation I have is what you are doing, monitoring the fluid levels. If you don't regularly check the fluid levels unless you suspect something is up, then I suggest the marking of the hydraulic fluid reservoir at the fluid level with all hydraulic components retracted and then mark the reservoir when all components are extended. Do not depend upon the factory's markings on the reservoir!

Watch those levels to determine if you have a leak somewhere in the system - the levels will drop. This is the first step to investigating the pool you have under the rig!