RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-15-2017, 12:54 PM   #1
2 Rivet Member
 
1985 29' Sovereign
Winter Park , Florida
Join Date: May 2004
Posts: 21
Water tank leaks only when greater than 3/4 full

When I fill my tank, water starts running out of the metal support pan before it reaches full on the tank guage. I suspected a loose connection on the fill line as there is no leak when the level is below 3/4. I attempted to fill while observing the connections (on the street side of the tank) and no leaks were present on any of the connections. As I continued to fill, eventually water appeared, flowing from the street side along the bottom of the support pan.

When full to the point of leaking, and the water to the fill line shut off, eventually the leaking ceases, at I estimate 7/8 full. If you hook up and tow, I'll notice water leaking when I stop, untill approximately the guage reads 3/4 full.

I'm assuming I have a leak high on the tank, on the opposite side of the trailer from the fill. As long as I shut off the fill when the guage reaches 3/4, no leaks. As of right now, it's not worth it to me to go through the hassle of removing the tank, but I wouldn't mind having the full water capacity. Has anyone else ever run into this situation, and if so what was the source of the leak? The trailer is an 85 Soveriegn 29 footer.
safariuser is offline   Reply With Quote
Old 11-15-2017, 01:32 PM   #2
Rivet Master
 
CBWELL's Avatar
 
1994 34' Excella
Warren , Manitoba
Join Date: Apr 2006
Posts: 782
Are you also assuming that the gauge is reading correctly?? Most gauges that I have had in any of my rigs are not correct. I know when my tank is full, when it comes out the overflow, or if filling quickly through the tank fill, it blows back. I don't think you have a problem.
__________________
ACI #7394
2012 GMC 2500 HD Duramax Denali
1976 31' Gone but fondly remembered
1976 22' Argosy
Hensley Hitch
CBWELL is offline   Reply With Quote
Old 11-15-2017, 02:21 PM   #3
Rivet Master
 
Belegedhel's Avatar
 
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 2,800
Well, that tank is 30+ years old...not hard to imagine that the tank has cracked, or that some previous owner drilled into it while installing flooring or fastening down a piece of furniture, etc..

The original water tank in my '73 held water fine when filled completely up, but the black tank had all kinds of cracks in it and had to be replaced.

good luck!
Belegedhel is offline   Reply With Quote
Old 11-20-2017, 02:06 PM   #4
2 Rivet Member
 
1985 29' Sovereign
Winter Park , Florida
Join Date: May 2004
Posts: 21
Thanks Belegedhel and CBWELL for responding. CBWELL, the tank never reaches the designed overflow before the water starts running from the opposite side of the tank. I think Belegedhel is on the mark. The previous owner made some floor repairs and I've backed out all the installed screws I can access and I don't think more than just the tip end of any of them could protrude through the decking. Either that is enough or like you say, a 30 year old tank could develop a crack. If thats the case I'm glad its apparently on top of the tank!
safariuser is offline   Reply With Quote
Old 11-20-2017, 06:10 PM   #5
Moderator
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,887
Images: 29
Blog Entries: 49
Check the filler tubing for cracks. My 34' did the same thing and the problem was several splits in the tube. Much easier to fix than pulling the tank!
__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie(RIP) -
A honkin' long 34' named AlumaTherapy https://www.airforums.com/forums/f20...num-54749.html
and a 26' '63 Overlander, Dolly https://www.airforums.com/forums/f10...ome-71609.html
HiHoAgRV is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Leaks, leaks, and more leaks da_lizard Leaks - Weatherstrips, Gaskets, Caulks & Sealants 15 04-11-2016 12:36 PM
Leaks, Leaks and more leaks Jim in Pima Leaks - Weatherstrips, Gaskets, Caulks & Sealants 5 12-12-2007 12:23 PM
Leaks, leaks, leaks jeffnjen30 Leaks - Weatherstrips, Gaskets, Caulks & Sealants 8 08-28-2007 12:03 AM
leaks leaks leaks Globie64 Leaks - Weatherstrips, Gaskets, Caulks & Sealants 10 12-31-2005 06:49 PM
Argosy Values greater than Airstream? Coastalview Trailer Values 9 09-12-2005 11:12 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 09:56 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.