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Old 02-24-2021, 11:19 AM   #1
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2018 27' Flying Cloud
Orange Beach , Alabama
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City Water filling Fresh Water Tank and Overflowing

When I hook up my 2018 27’ FC-FB to City Water the Fresh Water tank fills to 100% and spews water through the overflow vent. Is there a bypass or check valve I am overlooking? Please advise
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Old 02-24-2021, 11:26 AM   #2
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Dewey , Arizona
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Common problem. Check valve in the water pump is not sealing. Could just be some matter in the line. Running the pump will clear this up in most cases. Worse case will be to replace the pump.


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Old 02-24-2021, 12:51 PM   #3
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Old 02-26-2021, 06:39 PM   #4
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2016 23' Flying Cloud
Jasper , Georgia
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For what it's worth, we had the same issue. We decided to have a check valve installed. The water pump is extremely noisy now and we wish we had just replaced the fresh water pump from the start.
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Old 02-26-2021, 08:41 PM   #5
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2018 30' Flying Cloud
Anchorage , Alaska
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We just had that problem on ours a few days ago, although it was more a drip than a spew. Turning off the city water and running the pump for a few minutes fixed it.
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Old 02-27-2021, 08:02 AM   #6
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2018 27' Flying Cloud
Orange Beach , Alabama
Join Date: Aug 2017
Posts: 39
Fresh Water Pump Replacement

Thank you all for your help. I have decided to replace the fresh water tank pump. I have been told that their is a variable speed pump upgrade out there. I would appreciate any replacement pump information. Again...THANK YOU
(2018 Airstream Flying Cloud 27’ FB)
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Old 03-03-2021, 06:02 PM   #7
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Old 03-08-2021, 08:04 AM   #8
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2019 28' International
Murphy , Texas
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I just experienced the same issue. Turned off city water, filled the fresh water tank and used the water pump for 3-4 mins. shut it off, then did the same several times. This fixed my issue. Good luck
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