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

Thread Tools Search this Thread Display Modes
Old 03-04-2012, 11:49 AM   #1
2 Rivet Member
2008 25' Safari
Newport , Oregon
Join Date: Mar 2009
Posts: 72
Images: 1
Water heater trickle leak

Heading out next weekend after a long rainy winter. Hooked up to fresh water and de-winterized and noticed a very tiny trickle leak under the heating tube thingy where the gas flame ignites. Checked all connections and went online to see what was what and read that often too much pressure causes those type of leaks.
Yup, I forgot to put my regulator on the hose, and as soon as I did, the leak stopped.

Now what? Does the WH need to be removed so that the leak can be fixed? Do I need to fix it(hoping it will just fo away with the lower pressure)?

I'm not in the least bit handy and don't have any time to deal with it before we plan to leave, so should I take it in to a local RV place and have them work on it? The nearest Airstream shop is 75 miles away and service isn't available on weekends and I work M-F. I checked inside and found no evidence of water anywhere. We plan to use the rig for 6 weeks or so while we try to find the sun in So Cal.
It wasn't the pressure relief valve, but under the heating tube.

The leak is/was tiny, just a drip a minute or so. HELP!!
Steve97365 is offline   Reply With Quote
Old 03-04-2012, 11:55 AM   #2
Rivet Master
2005 25' Safari
Trabuco Canyon , California
Join Date: Apr 2006
Posts: 866
Images: 2
I've seen condensate trickle out of burner tube in cool damp weather. This is when starting water heater on cold tank of water. It can accumulate quite a puddle, and it stops when the tank gets warm. It is similar effect to a cold car exhaust system dripping till it warms up.

If pressure is excessive, you should see it clearly coming from pressure relief valve. I had this issue and solved it with accumulator.
tpi is offline   Reply With Quote
Old 03-04-2012, 01:00 PM   #3
Rivet Master
A W Warn's Avatar

2000 25' Safari
1999 34' Excella
Davidson County , NC Highlands County, FL
Join Date: Aug 2006
Posts: 4,336
If you are where you can leave the water system pressurized, just leave it connected for a several hours or a few days. If the leak persists it is something to repair.

If it does not continue to leak it was most likely an accumulation of rain water or condensation that started to run when you moved the trailer slightly.
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
A W Warn is offline   Reply With Quote
Old 03-04-2012, 02:15 PM   #4
Site Team
Aage's Avatar
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,219
Images: 25
It`s hard to imagine that a 2008 WH could have a leak caused by corrosion. It`s too new for that.
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................
Aage is offline   Reply With Quote
Old 03-04-2012, 02:53 PM   #5
Rivet Master
dkottum's Avatar
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
I wonder if it is dripping down from the pressure relief valve (probably normal). The pressure in the hot water system increases as it heats up. As many do, I turn mine off at night when at campgrounds and water pressures increase from lower demand during the night.

As a check, see if it stops dripping when you turn off the hot water ignition switch.

Also, there could be some buildup of mineral in the pressure relief valve causing a drip. Turn hot water heater off, let it cool down, then snap the valve release a few times to see if it clears.
If that's the leak source, it's not the end of the world, replace it (easy) when you have time, after the tank is cooled down.

doug k
dkottum is offline   Reply With Quote
Old 03-04-2012, 03:15 PM   #6
2 Rivet Member
2008 25' Safari
Newport , Oregon
Join Date: Mar 2009
Posts: 72
Images: 1
Trickle leak

Thanks for the replies. The leak went away when I put my pressure regulator on the city water hose. Should I risk trying it again without the regulator?
If that is the problem, what would be the fix?
I would love to travel this weekend, and take care of it when I get back if I'm not risking ruining something like the floor.
Steve97365 is offline   Reply With Quote
Old 03-04-2012, 03:34 PM   #7
Rivet Master
4RXLA's Avatar
1977 31' Excella 500
West Sacramento , California
Join Date: Feb 2008
Posts: 551
Images: 33
Blog Entries: 12
Mine does the same only on the initial firing. It is condensation that goes away once the tank is warm.
4RXLA is offline   Reply With Quote
Old 03-04-2012, 07:09 PM   #8
2 Rivet Member
2008 25' Safari
Newport , Oregon
Join Date: Mar 2009
Posts: 72
Images: 1
Thanks again for the help. I was away all day, but left it hooked to water and the water heater on, and so far, no more leak. I hope it was just as a few mentioned, and is condensation that eventually goes away. It was puzzling to me why it was coming from the gasket underneath the heating tube and not the pressure relief valve.

I'll keep my eye on it on the trip. I'm sure it would cost plenty to run down and fix a leak, especially an intermittent one!
Steve97365 is offline   Reply With Quote

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
Healthy/Green Fresh water storage tank SteelyDan Classic Motorhomes 23 03-27-2012 09:55 PM
Water leaking eek Fresh Water Systems 7 03-06-2012 11:08 AM
New low tech water heater Globie64 Water Heaters, Filters & Pumps 17 03-05-2012 11:23 AM
Bowen G6A2 water heater refurbishment dryenko Water Heaters, Filters & Pumps 0 02-29-2012 06:10 AM
High Flow Water Pump - yes / no ? MrJ Mechanics Corner - Engines, Transmission & More... 7 02-29-2012 12:07 AM

Featured Campgrounds

Reviews provided by


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 04:33 AM.

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