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Old 12-02-2019, 09:17 AM   #1
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2016 30' Flying Cloud
Pensacola Beach , Florida
Join Date: Jun 2015
Posts: 3
Leak behind fresh water fill box

Hi everyone. We have a 2016 Flying Cloud 30FB (bunk model). During our recent Thanksgiving trip, I noticed water leaking from the underside panel directly below the fresh water fill box while filling the fresh water tank. I pulled the box and found that the interior line and clamp had backed off the fill box inlet pipe. This should be an easy fix, but the interior fill line barely reaches the skin of the trailer, so thereís not enough slack to securely clamp the fill line from the outside before installing the box. My wife has smaller hands and was able to get it close, but we still have a leak. I pulled the microwave and all the drawers in the area to see if I could get access from the inside with no luck. I donít see an easy way to access it from underneath either.
I wish I had taken a picture but Iíll do my best hereÖ From looking at the fresh water fill box, it has two pieces: the box/housing and the inlet pipe with the cap. The back of the housing has a couple of plastic tabs that act as stops to allow the cap to be twisted on and off, but thereís also a gap that seems to allow the inlet pipe to be removed from the box by rotating it past the tabs. With the inlet pipe removed I could clamp it to the interior line, install the box, then rotate the inlet pipe about 10 degrees back over those tabs. However, I canít remove the inlet pipe without forcing it and damaging those tabs, and Iím not sure I could rotate it back over those tabs once installed anyway.
This really should be an easy fix. I have a feeling Iím missing something obvious. My last idea is to rig some kind of an extension to the back of the inlet pipe. The extension would reach further into the interior fill line and would probably stop any leaking even if the clamp isnít quite secure.
Has anyone run into this before? Any advice is appreciated.
Hope everyone had a great Thanksgiving.

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Old 12-03-2019, 06:03 PM   #2
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2019 26' Flying Cloud
Morristown , Tennessee
Join Date: Dec 2016
Posts: 604
I have the same issue on my 2019 FC26, and I just logged on to see if there was an easy fix. I get drips at the city fresh water connection, and also have a leak whenever I use the wastewater flush connection.

2015 Chevrolet Silverado 2500
2019 Airstream Flying Cloud 26RBQ
WBCCI #6679
On the road between Arizona and California, then PNW/Canada
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Old 12-03-2019, 10:36 PM   #3
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2005 25' Safari
Salem , Oregon
Join Date: Mar 2006
Posts: 7,961
Images: 18
Blog Entries: 55
Hi, when my trailer was brand new it had a water leak on the floor after filling my fresh water tank. I found that when someone at the factory was trimming the vinyl flooring, they cut the fresh water filler hose. I wanted to remove the filler assembly but it was sealed on the outside and had about five pounds of sealer inside of the wall; So it wasn't coming out. I did get my filler hose replaced, but it was extremely difficult to do.

I think you can do it, but it won't be easy.

2005 Safari 25-B
"Le Petit Chateau Argent"
[ Small Silver Castle ]
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
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