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Old 03-13-2015, 04:44 PM   #1
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What's causing this?

First 2 nights in our new 5th wheel. 2nd morning I noticed water leaking and thought city connection was loose. Instead I see water coming out of the fresh tank fill. Apparently when connected to city water some water is being diverted into the fresh tank. It took two nights to fill and start overflowing but don't know the cause. Bringing it to the dealer but first appointment is the 26th. Any ideas or suggestions in the meantime?
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Old 03-13-2015, 05:01 PM   #2
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Same thing happened to me. My dealer said it was a bad check valve in the water pump & replaced it under warranty. I haven't checked it yet to see if all is well, but will this weekend as we are going camping for about a week. What I did until I got it fixed was just leave my fresh water tank drain valve slightly open & let it drain out.
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Old 03-13-2015, 05:19 PM   #3
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Originally Posted by clicker1944 View Post
First 2 nights in our new 5th wheel. 2nd morning I noticed water leaking and thought city connection was loose. Instead I see water coming out of the fresh tank fill. Apparently when connected to city water some water is being diverted into the fresh tank. It took two nights to fill and start overflowing but don't know the cause. Bringing it to the dealer but first appointment is the 26th. Any ideas or suggestions in the meantime?
Not much Info to work with? WAG would be (Check valve in F/W Pump,turn OFF City water and turn ON pump,this might clear the situation? Next (Maybe?) you have a Unit with F/W fill from the C/W Inlet that is turned part way ON? Either way Drain your F/W tank,no need to keep running it on the Ground! Youroo!!
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Old 03-13-2015, 05:36 PM   #4
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Not much Info to work with? WAG would be (Check valve in F/W Pump,turn OFF City water and turn ON pump,this might clear the situation? Next (Maybe?) you have a Unit with F/W fill from the C/W Inlet that is turned part way ON? Either way Drain your F/W tank,no need to keep running it on the Ground! Youroo!!
No, it's a manual fill no valve that's slightly turned on, that would be way too easy to fix. Running the pump didn't fix it, again way too easy. Tank no longer full (didn't need to travel with 400lbs of water) just looking for any ideas of what it could be before bringing her in.
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Old 03-29-2015, 11:03 PM   #5
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What was the result? Mine is going the other way. When I turn on my FW pump it shoots out the city water connection.
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Old 03-30-2015, 05:01 AM   #6
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What was the result? Mine is going the other way. When I turn on my FW pump it shoots out the city water connection.
Take screen off at city connection and reset check valve by pushing/releasing
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Old 03-30-2015, 10:41 AM   #7
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Took it in Last Thursday, they said the pump has a check valve that may have debris in it. They just replaced the water pump since it is not time or cost effective to take the pump apart to clean it. We head out on Wednesday for our first trip since the repair. Will let you know if it's all better.
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Old 03-30-2015, 02:51 PM   #8
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Make sure your screen is properly placed on the city water hookup. there should not have been any debris on it unless there was something in the line from the factory. The dealer likes to get you on the "it was debris from dirty water" or in my case, a spider web in the fuel tubes (even thought it was on their lot not my driveway) and say it's not under warranty.. sorry had to get that off my chest LOL
Enjoy!
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Old 04-02-2015, 09:45 AM   #9
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Well happy to report that replacing the pump seems to have done the trick. Thanks for all your suggestions.
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Old 04-26-2015, 10:12 PM   #10
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This is happening to my 2013 Sabre TT, Can I just take the pump out and connect the 2 hoses with a nipple ?
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Old 05-03-2015, 05:37 PM   #11
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^ yes just run them in a loop
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