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Old 10-22-2015, 04:19 PM   #21
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Originally Posted by dahagen View Post
My son runs an RV repair shop near Denver and when I had the problem he said it is a common problem. I discovered it when my fresh water tank overflow had water coming out of it. Had my water pump replaced under warranty.
This is why I leave my fw tank valve open @ all times unless using fw tank.

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Old 10-22-2015, 04:26 PM   #22
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I agree with springpop. Sounds like your service dept. doesn't know how to work on RV's or yours it the first one they have worked on. This is a common problem. The easiest way to fix it is, as bubbles said, to turn off your city water, turn on your water pump and try to clear what ever is keeping the water pump check valve open. You can either replace your water pump or put in an external check valve. The external check valve will cost less than $10.00, a new water pump is over $100.00. If your unit if still under warranty, I would have the dealer replace the water pump. Another question I have, is the water pump check valve faulty or is there debris in the fresh water tank from when they cut the holes in the tank at the factory. You may want to flush out your fresh water tank. Since this happened to me, when I am camping for an extended period of time and hooked up to city water, I check my fresh water tank occasionally to see if it's filling up.

Good luck
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Old 10-22-2015, 04:36 PM   #23
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This is why I leave my fw tank valve open @ all times unless using fw tank.
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X2.
I even zip tied a little screen cap over the FW tank drain valve nipple so no bugs could get in while open.
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Old 10-22-2015, 06:21 PM   #24
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All very good ideas.

I will try the "recycle pump" idea before taking unit in.
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Old 10-22-2015, 07:09 PM   #25
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If you do not have an antifreeze adding system you can still check this problem. Run your fw pump and after a minute or so it should shut off. Then turn it off. Wait 5 minutes and open the kitchen cold water. If the pressure is very low then the water has drained back into the tank because the check valve didn't hold.


If pressure is good turn pump back on. As pressure drops the pump will cycle on and off, as it should.


Cycling the water pump by building then draining the pressure may clean and unstick the check valve. Good luck.


Jim
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Old 10-22-2015, 08:10 PM   #26
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If you do not have an antifreeze adding system you can still check this problem. Run your fw pump and after a minute or so it should shut off. Then turn it off. Wait 5 minutes and open the kitchen cold water. If the pressure is very low then the water has drained back into the tank because the check valve didn't hold.


If pressure is good turn pump back on. As pressure drops the pump will cycle on and off, as it should.

Edit: to say I do not have the antifreeze adding system.

Cycling the water pump by building then draining the pressure may clean and unstick the check valve. Good luck.

Jim
Jim I will try this method tomorrow... I'll let you know how it goes.
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Old 10-23-2015, 12:41 PM   #27
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Thanks to all!

Recycling done as suggested...everything working as should. Must have been trash.
I will keep a close eye on this in future.
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Old 10-23-2015, 01:23 PM   #28
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Thanks to all!

Recycling done as suggested...everything working as should. Must have been trash.
I will keep a close eye on this in future.
Great! Nice to see good news once in a while, LOL!

Jim
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Old 10-24-2015, 10:08 AM   #29
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I am wondering if this isn't directly related to the occasional cycling of the pump that is heard when everything is turned off that only lasts a couple seconds. If you have ever had a pump head apart. There are a set of umbrella check valves in the head
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Old 10-24-2015, 11:20 AM   #30
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I believe that all of the responses have missed a vital part of the OP's original post: "the carpet was wet."

The fresh water tank should have an overflow pipe that allows air to enter the tank as it's drained, and provides a drain if you overfill the tank. Tis overflow pipe should end up outside of the RV, not inside where overflow will wet the floor of the bedroom.

The overflow pipe may not be properly routed outside of the rv and/or the connection to the tank may not be properly sealed. Both should be checked and repaired as needed.

Phil
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