Gray Water Leaks: Shower & Outside Kitchen Drains

[Terril Riley]

I have a 2018 windsport. Getting a small amount of water leaking into lower compartment under shower. Don’t know if it’s the tank or maybe a line leaking, also have a water leak under cabinet in out side kitchen. Anyone have an idea on how to fix or what could be.

 

[ghnl]

I assume you will need to figure out how to get access to the shower drain. There is usually a P-trap under the drain. The connections could be loose. There might be a panel under the shower that is nailed in place. If you can carefully pry it off you should be able to get at the drain pipes.

As for the outside cabinet, again - you need to get access to thee plumbing. RV manufacturers don't always make it as easy as we'd wish. But water leaks are the biggest killer of our rigs. The plywood they use is thin and not waterproof.

If you're not an experienced DIY'er then I'd suggest hiring an independent RV repair shop. The good technicians tend to work there. The ones at many RV dealers are in the beginning steps of learning on the job...

 

[1129Fran]

I had a similar problem a couple years ago w my 2019 windsport 34R (I am the second owner). Water showing coming from under the shower pan (not under pressure so I knew it was not a pressurized line leak). I contacted Thor who got me contact info for the manufacturers of the shower pan, the shower enclosure and the shower doors (not all the same). Contacted them all and they sent me their install instructions so I could figure out how they all go together and possible leak pathways. I removed the hall wall panel that backs up to the shower (side with the showerhead). From there I could see underneath the pan and look at the floor drain. There is a P trap and a cut in the floor to provide space for the trap and for the line connecting to gray tank. Nothing there was leaking. Bottomline: my leak was coming from the intersection of the enclosure, the pan, and the shower door frame. Somehow water got behind the wall panel at the bottom of the shower door and came out on the floor. Solved by caulking the area. While the hall panel was off I used the opportunity to change the shower valves, etc. Also got new hardware from door manufacturer which improved sliding the door around the corner. I found the Thor people and the suppliers to be very helpful.