Underbelly

[atripp]

I have a 2 part question on my 285CK Sunset Trail

On one of our recent outings on the day we were leaving, I noticed a leak underneath the kitchen area. It had not leaked at all before then. The kitchen gray tank sensor indicated full so I can only imagine the leak is somewhere once the tank is getting full. I also noticed the underbelly had been cut under this same area (shame on me for not taking the time to have an inspection) and taped up. Fast forward to our last trip and after checking in, I noticed all the tape hanging down underneath so I assume it all got wet from the leak and caused it to no longer hold. I ordered a roll of flex mend underbelly repair tape (4" wide) and re-taped this area. The next morning we were leaving I noticed all the new flex mend I had put on was coming off and not sticking. I pull it off and now I'm back to square one. How to I fix these spots and is there a tape that will stick. I almost want to replace this whole section - does anyone know exactly what the underbelly is - it almost looks like coroplast. I actually just googled it and I see it sold by the roll on RecPro.

Second part is do anyone have an idea of what may be leaking as the kitchen sink gray tank is getting full? I had a camping neighbor tell me to just leave this valve open with the sewer hooked up since its only the kitchen grey tank until I can find the leak and repair.

 

[Jimbo57]

A couple questions, when you say it’s full is that because shower is backing up or your panel says it’s full. On some RVs the vent in the kitchen may not be a pipe thru the roof but a cap under the counter that may not be longer working. Is it possible to remove sheeting from underside to see gray tank, then fill with clean water till shower shows water or you can see leak. There are many places that could leak, every connection

 

[atripp]

It's the gray tank at the back that the kitchen sink drains to not the one for the shower and bathroom sink. I have 2 gray tanks .

 

[Jimbo57]

Then that is the tank to fill. My old 5th wheel had black, grey and galley tanks , I miss 3 tanks

 

[ducksface]

https://www.amazon.com/gp/aw/d/B0BN12BN6V?psc=1&ref=ppx_pop_mob_b_asin_image

https://www.amazon.com/gp/aw/d/B0C1WGH6D8?psc=1&ref=ppx_pop_mob_b_asin_image

I use these.

 

[Papa-T-XRD]

When I had a leak, I cut three sides of the underbelly so it was like a trap door. Then I used a piece of wood, held it in place with it overlapping the cut hole and used a couple wood screws to screw in place. Then closed the flap onto the overhanging wood and used another wood screw and screwed the door closed. Then used wide black gorilla tape to tape the seamed. Hasn’t came off in a year.

 

[atripp]

When I had a leak, I cut three sides of the underbelly so it was like a trap door. Then I used a piece of wood, held it in place with it overlapping the cut hole and used a couple wood screws to screw in place. Then closed the flap onto the overhanging wood and used another wood screw and screwed the door closed. Then used wide black gorilla tape to tape the seamed. Hasn’t came off in a year.

I'm assuming you placed the wood on the "inside" of the underbelly and not the outside that you would see?

 

[atripp]

https://www.amazon.com/gp/aw/d/B0BN12BN6V?psc=1&ref=ppx_pop_mob_b_asin_image

https://www.amazon.com/gp/aw/d/B0C1WGH6D8?psc=1&ref=ppx_pop_mob_b_asin_image

I use these.

This is what I used - by the next morning it had all come off - didn't stick at all.

https://www.amazon.com/Mobile-Belly-Bottom-Repair-Fix-Underbelly/dp/B00BJ5SPO8//URL]

 

[ducksface]

There's a pretty fair chance that if it is applied in cold weather or to a not clean surface it might not stick.

 

[atripp]

It definitely wasn't cold but I definitely didn't spend any time cleaning it either. It didn't look dirty but that doesn't mean it wasn't.