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Topic: Water leak under rig (Read 459 times) previous topic - next topic

Water leak under rig

I have a steady dripping from the bottom of the rig under the water bay on the battery side toward the center. I have replaced the main waterline to where it splits behind the hot water tank and have inspected everything I can see. Are there water lines between the bottom of the rig and the basement floor of the water bay? I don't see a leak from the water bay anywhere but the dripping seems to be getting worse. It only leaks when I am plugged into an outside water source.
Thanks

1989 Grand Villa
1989 GV Private Coach. DD Pusher/Allison
Stay Free And Safe
Kennyb

Re: Water leak under rig

Reply #1 –
Not sure if your coach has a hose reel or not, but that is a fairly common leaking point. Where hose attaches to reel. I just chased a water leak in my coach for the last month or so, and it was coming off the Oasis hydronic heater. Not sure if you have one of those or not either.... Water leaks hard to pinpoint sometimes unless they are active while looking...good luck.. PS ...water can travel away from leak before it resurfaces... check all your bays for wetness...
Keith and Dawn Hudson #18766
Current- 1999 U295 DFGE 40ft. - Build #5405
Coach Name: 4BUS4US
Previous- 2008 Nimbus CE338: 40th Anniversary Edition- Build #6486. 
Toad: 2021 Jeep Cherokee Trailhawk

 "I know something about a lot of things..a lot about something's..and everything about nothing "

Re: Water leak under rig

Reply #2 –
It could be the pressure relief valve on the water heater, we had a similar leak experience years ago. Being hooked up to city water the expansion gap in the water heater filled with water and over powered the relief valve.
88 Grand Villa 36' ORED 3208 (throwaway)Cat.
 Build # 3150
Happiness is the maximum agreement of reality and desire.

Re: Water leak under rig

Reply #3 –
You need to find it ASAP and then dry out the basement floor sandwich. 

Your rear bulkhead will appreciate your efforts.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Water leak under rig

Reply #4 –
I think I'm past that point actually. I bought her as a project but life circumstances changed and I'm currently a full-time and haven't been able to do that work. My investigations have revealed the back part of the basement structure below the water bay is in need of replacement. I got her very cheap so I'm not upset but I don't have a place (or the funds currently) to have it done. I have read the section here on that and am contemplating doing the work myself when I can arrange different living arrangements because I would like to redo the rear bulkhead because the person who had it before me tried a shortcut and it caused the fiberglass to bubble. I see it's a lot of work but I also know I can put about $20g into it and still at least double my money if I decide to sell it after I'm done. My company went under doing Covid so pretty much everything is on hold besides what I absolutely need to do. I won't be taking her up north this year though which is kind of a bummer. Won't be able to do that until the big fix is done I think. I came back to FL from MI in November and I have some structure issues from the last trip...windshield etc...
1989 GV Private Coach. DD Pusher/Allison
Stay Free And Safe
Kennyb
 

Re: Water leak under rig

Reply #5 –
"Won't be able to do that until the big fix is done I think".

Kenny, sorry to hear. I would definitely not drive that coach any distance with this issue. Best wishes.
1993 U300 40ft GV SE
Build # 4344