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Old 12-08-2019, 11:33 AM   #1
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Removing Water Pump 25FBT

I have a couple of questions related to removing and replacing the water pump and check valve assembly on my 2019 Flying Cloud 25 FBT. Sorry in advance for the long post. During a recent week-long camping trip to the Oregon Coast, we experienced serious amounts of water running out of the bottom of the trailer exiting from a hole in the floor where the main power feed from the hitch enters. It is right near the fresh water tank and city water connections. I went with a 50% (gage indication) fresh water tank but connected to the campgroundís city water. It is at a reasonable pressure and Iíve been there many times in the past (Barview County Park). The 2nd morning I heard water dripping noises and found copious amounts of water running out of the wire pass thru mentioned above. I turned off city water and the dripping stopped a few minutes later. I turned on the water pump and no leaks ensued. The fresh water tank said 100% so the check valve, which is part of the pump assembly, had clearly failed and back filled my fresh tank. I drained it down to 50% again, turned city water on, and monitored it for the rest of the day. It was steady at 50% where it remained for about 36 hours. At this time I noted it at 80% and turned off the city water immediately. This repeated 3 times so it is an intermediate failure. I went to Airstream Adventures NW and talked to the service department. They told me it was out of warrantee, because Iíve had it 15 months, and all appliances and devices are only covered for 12 months. Labor is $145 per hour and the pump assembly is $250. Fine, Iíll do it myself. I found the pump behind a hinged panel under the wardrobe. The furnace vent/hose is attached to this door and must be detached to get in at the pump. Does anyone know how to unhook the vent hose? I donít see any fasteners and moderate tugging doesnít detach it. Help please!
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Old 12-08-2019, 11:41 AM   #2
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"Intermittent" not "Intermediate" failure.
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Old 12-08-2019, 11:52 AM   #3
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The vent part that rotates will snap out there should be 3 screws that hold the rest pull out and the hose will come loose.
Good luck
Ann & Preston
Mechanicsville VA
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Old 12-08-2019, 12:46 PM   #4
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Oldman2 thanks for the response. This is not one of the metal rotatable vents. It is plastic, doesn't rotate, and appears to have been taped to the hose. It mounts in the wooden cabinet door. I see the kind you're talking about in the ceiling unless I'm missing your point.
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Old 12-09-2019, 06:12 AM   #5
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If you pry out on the vent while rotating it thee is a spot where it will come loose, mine is plastic as well. Then you can access the 3 screws there are small barbs that hold the hose in place that are too close to the circle cut out in the panel must remove the vent to get the hose loose without tearing the hose.
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Old 12-09-2019, 06:15 AM   #6
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Hey what kind of truck is that in your signature? A Studeabaker?
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Old 12-09-2019, 06:28 AM   #7
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You might get easier access by removing the floor in the wardrobe. Some models just lift out (not sure about yours.)
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Old 12-09-2019, 10:18 AM   #8
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Hey what kind of truck is that in your signature? A Studeabaker?
Looks like a late 54 Chaby or gmc
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Old 12-09-2019, 10:37 AM   #9
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It wasnít your question but if you are bothered by pump noise, you might as well fix that as well. I had success with the Sureflow Silence kit or you can make your own. The problem is Airstream uses rigid pipe to connect to the pump instead of following manufacturers instructions.

You can also make it better than new by doing a better of isolating the pump and itís hoses from the wood. Thereís a lot of vibration that gets transmitted to the rest of the trailer.
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Old 12-09-2019, 11:51 AM   #10
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Yep, 3 screws holds the venting to the plastic outlet ... I also had to contend with a black PVC tank vent which made the replacement process so much fun
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Old 12-09-2019, 01:23 PM   #11
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The truck in my picture is a 1955 Chevrolet 3100 1st Series. They were only built for the first 3 months of 1955 when the 2nd Series started production. This one was built in March in Oakland so one of the last ones ever built of the 1st Series. It is different than 1954 in that it has a open driveshaft rather than a torque tube.
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Old 12-09-2019, 01:47 PM   #12
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Awesome truck thanks
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Old 12-13-2019, 08:24 PM   #13
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Sort of OT but we bought a couple of kitchen sink flex lines at Home Depot and quieted our pump down considerably. And that vent hose that goes to the outlet in the panel? Ours was 'fastened' with three sheet metal screws to the outlet and two had begun to tear the plastic fabric in the hose. Solved problem by using a spring-type clamp used on a clothes dryer. Easy on/easy off for working under that area.
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Old 12-17-2019, 12:25 PM   #14
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I've opened this panel many times on our 25fb (once cross thread on a fitting causing air to be drawn into the system, once for clogged filter, once for leaking pump.) Access sounds the same as the 27. Unscrew the vent cover from the panel, pull a small amount of hose through the hole, and you should be able to access screws holding the hose to the vent cover. It drives me nuts this hose doesn't have enough slack to open a panel that's clearly meant to be opened.


The pump should be $70-$100 and is an easy install IMO. I added a pressure bladder too and it reduced pump cycling considerably.
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Old 12-17-2019, 01:54 PM   #15
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Thank you! I am presuming that you pry the rotating vent off the plastic mounting fixture and the screws you mention will be visible?
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Old 12-18-2019, 10:00 AM   #16
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I recently had to replace the water pump on my 2018 25FBT and was told that the component warranty was only 1 year on that item. Seems different components have different warranties. When replacing the water pump, how do you deal with removing and installing the two mounting screws on the blind side of the pump? There is limited room and it took a short screwdriver to blindly reinstall in the previous holes. I was able to open the panel under the cabinet, but did not see any way to remove the cabinet floor to gain better access. How have others dealt with this?
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Old 12-18-2019, 04:36 PM   #17
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Thank you! I am presuming that you pry the rotating vent off the plastic mounting fixture and the screws you mention will be visible?

On ours (2010 International) there are 3 screws visible holding the vent into the panel.
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Old 12-19-2019, 10:11 AM   #18
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I found basically the same thing when at the Airstream dealer as you, all appliance warranties expire at 12 months. All the items that wear out have very short warrantee.
I had my machine for 14 months when the check valve on the water pump failed allowing city water to overfill (and leak) in to the fresh water tank. I was informed that neither the parts nor the labor would be covered. The sign said "Labor $145 per hour". They told me the pump would be approx. $250. Part of the sales pitch used to get me to purchase my $80,000+ 25FBT was that 2019 warranties are 3 years. Nope.
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Old 12-20-2019, 08:43 AM   #19
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Well I’m at a loss. We purchased our 2018 in Feb of ‘18. I just needed a furnace repair (circuit board and switch). It was completely covered under the Dometic 2 year warranty and no questioned the coverage at all. Certainly it must vary by item, although the vast number of appliances are Dometic. We had a previous issue with hot water heater and it was also completely covered.
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Old 12-20-2019, 10:30 AM   #20
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Guess you need a score sheet to watch your warranties expire. The pump and valve are definitely only one year. Oddly, I read on Shureflow's web page for this pump that their warranty is 2 years but for OEM they say "Contact OEM". For some reason Airstream has it at one year. Consequently I ordered the whole upper assembly, which contains the check valve, for $17. With the help of you folks on the forum, I was able to successfully remove the old one. Thank you! BTW, Shureflow's PN for this assembly is 94-800-00. From what I've read, this is a common failure mode so others of you may need it.
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