Pressure leak in the front left

Bbaldwin

hello,

I have a 2016 T@B S, with the bathroom/shower. I have a leak somewhere in the left front of the trailer, it’s I not the pump. I can see the pump through the access door above the toilet but not behind the wall its mounted too. Pretty sure the leak was caused by pressure, I was filling the tank to check it and I got distracted and left the hose running in the filler much longer than I should have.

the nearest nucamp dealer is roughly 100 miles away so I took the T@B to a local shop, been in business a long time well regarded, but they’ve never worked on a T@B before. He agrees that it’s a pressure leak somewhere in the left front of the trailer, but neither he or I can figure out how to access the plumbing in that area, short of pulling the shower/toilet out or removing the diamond plate on the front of the trailer, or removing the sink/cabinent. Can anyone here tell me the best way to access that section of plumbing?

Bruce Baldwin

ScottG

When did you notice the leak? Was it immediately after filling the tank? Or was it after you activated the pump to draw water from the tank?

Under normal circumstances, filling the fresh water tank on a 2016 does not involve pressurizing anything. The tank fills by gravity, and air is displaced through a vent above the fill port. So, while you might have made a big puddle on the ground, it's unlikely you would have damaged anything by leaving the hose running a little too long.

Bbaldwin

no, I’ve drained it and refilled it acouple of times, it definitely has a leak. When I turn the pump on water starts to drip out of bottom of the trailer

ScottG

Ok. Check this first…

Stick your arm down in the hatch (it takes a little T@B yoga) and see if you can reach the back of the city water fill port. It's a screw-on connector that tends to loosen over time and cause a leak in that area when the lines are pressured.

Please report back after. If the leak persists we'll dig a little deeper!

Bbaldwin

thanks, I’ll try it, might be a day or two, the trailers still at the RV shop in chico

ScottG

And if that's not the culprit, it is possible to build an access hatch to get to the area behind the toilet wall.

It may take some more of that T@B yoga, but try to locate the leak before breaking out the demo tools. Ripping out the entire shower is almost certainly not necessary!

Bbaldwin

Scott,

So the tip you gave me didn’t fix the leak, the tech from the RV place had already checked that. He also put a video camera down the hole where the pump is and looked around and couldn’t find the leak using it. Is cutting an access hole behind the toilet the next step?

Bbaldwin

I’m looking at the picture posted on the link you sent and it appears that it’s taken from the front of the trailer with diamond plate removed, which is what he was thinking of doing next. Also, do you know what year T@B that picture is from?

ScottG

Nope—I don't know what year trailer that photo was from. I know it's a similar—but not quite the same—configuration as my 2015.

I believe that was a factory photo taken during assembly. The diamond plate had not been removed, but rather had not yet been installed. I'm unaware of anyone removing any part of the outer skin from a completed trailer, so have no idea what's involved in doing so (or in putting it back properly).

It's hard to say if an access hole is the next best step. At least in my case I was able to locate the leak by sight and feel through the little hinged hatch above, so I knew my hole would provide the access I needed to make the repair.