Community Forums

Rookie Rick · 07-23-2022, 09:34 PM

I need to repair a leak from the kitchen plumbing run to the graywater tank at the tank. Looking at the graywater tank from the drivers side water control compartment, the suspected connection would be somewhere by the top hinge for the water control compartment. But I can't get to it there, can't even see it. Thinking about cutting the right side of the double door compartment right next to the water control bay to see if I can see the suspected pipe connection there. Anyone done this before? Suggestions?

Flyer15015 · 07-23-2022, 09:40 PM

Year, make, model, and pictures will get you better answers.
Otherwise, we are just guessing, and you may not want to act on those.

Mike in Colorado

appsol · 07-24-2022, 01:18 PM

I see from your profile you have a 2013 Palazzo 33.2. On my 33.2 I have had leaks several times at the point where the flexible hose from the kitchen sink connects to the ridged pipe that extends up from the top of the gray tank. You can access that connection from the false drawer front below the big kitchen drawer. (Only when the slide is extended.)

That connection comes loose. I tried a couple different fittings.. nothing improved it. When I was at TMC factory service a couple times they didn't have any better ideas.

Duct tape, replaced periodically, was all I found that works.

Rookie Rick · 07-24-2022, 08:05 PM

Thank you for the reply. I've opened the bag under the sink and drawer are and it's completely dry. The flexible hose appears to be functioning just fine at this point. I didn't take any pictures, but the left bracket that holds the graywater tank up when looking at the drivers side water control area, is totally rusted and drips every time I use the kitchen sinks. Don't dare use the washer as it's on the same plumbing run. Of course I'm on the road so finding time right now is tough.

Rookie Rick · 07-24-2022, 08:12 PM

RV is a 2013 Thor Palazzo model 33.2. No pictures, but Ill try a plumbing diagram

appsol · 07-26-2022, 11:38 AM

Took me awhile to look at the diagram and figure out what didn't make sense. In that 2012 drawing there appears to be a metal cage not identified by number surrounding where the drain pipe rises through the floor and into the slide area... but there is no such metal cage on my 2013. The riser (29) elbow (7) and hose connection fitting (14) are not supported in any way. (It is likely that cage was eliminated after the original engineering drawings for the Palazzo line were done.)

From this detail it appears the only place a leak could be happening if you don't see water when looking in the "bag" under the counter is the riser or where it attaches to the tank, but it seems the tank attachment would only be leaking when your tank was full... so that points to a crack in the riser or elbow.

If you have an endoscope you might be able to slide it down along the pipe to see if you can locate the leak while water is running.

Another possibility is the leak is not there, but from somewhere else on the plumbing in the slide and running to that point to drip out.

Rookie Rick · 08-09-2022, 09:01 AM

Thanks for your thoughts apposol. I didn't mention this, but my large slide which contains all the plumbing for the kitchen, is having issues and I can't take a chance of moving it. So, I have to try and see what I can, with less accessibility than one normally has. I did get an endoscope and am trying to fish it in to various spaces to check for cracks, but the electrical wiring, water supply pipes and foam, prevent the scope from getting to where I want it. I'm continuing my investigation today. Thank you

Rookie Rick · 08-15-2022, 08:50 AM

Found my leak, even with the slide stuck in. Problem is, I can't get to it with the slide stuck in. It's going in for slide service tomorrow so I'll try to get them to repair the 90 degree elbow and the female coupler as well. I'll try and attach a picture. It appears that both the 90 and the female coupler are cracked and the overall connection point broken and being held in place by pressure. In the picture, the freshwater tank connection is on the left and the 90 is on the right.

appsol · 08-15-2022, 10:31 AM

Difficult to see in the picture... is that the outward side of the elbow which is number 7 in the diagram above? Hopefully they can get to that once they address the slide issue.

Does your 2013 have the upgraded triple track system on the large slide?

Rookie Rick · 08-15-2022, 07:37 PM

Triple Track System? No, I sure wish it did! Makes absolute sense for a huge slide like the 2013 33.2 has. Ya, I said freshwater tank but obviously I meant graywater. Thanks

Rookie Rick · 08-15-2022, 07:41 PM

I meant to title the post graywater tank update

Rookie Rick · 08-16-2022, 11:17 AM

Hey appsol,
Yes, that attached picture is #7 on the plumbing diagram. The 90 degree elbow, which is cracked, goes into a female fitting that is also cracked and probably separated where they mated. The plumbing drawing is a bit exaggerated as everything is a lot tighter. It works for knowing where to look. Thank you for your thoughts.

appsol · 08-16-2022, 12:41 PM

Once the slide is fixed replacing that elbow and the fitting that connects to the flex hose should solve the leaking problem.

As for the triple track slide mechanism, Thor changed to that on the big slide in 2015 after numerous problems with the double track mechanism on the 2013 and 2014. The change includes new tracks and drive shafts and using higher torque and slower motors. (500:1 vs 300:1) Mine was rebuilt twice before it was stable, but that is covered in numerous other threads on this site.

Feel free to PM me if you want more information from what I learned during those replacements and subsequent repairs.