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Old 08-25-2016, 10:11 PM   #1
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Fresh Water Tank filling up wihen attached to City Water

I have a 2015 Jayco Whitehawk 24RKS. When I am hooked up to City Water Connection at the campground, me fresh water tank fills up after several hours and overflows over the escape valve. Also, when my refrigerator is pretty full, it doesn't want to latch closed. Doesn't appear that anything is preventing it other than a heavier door. Any suggestions or recommendations are greatly appreciated.
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Old 08-25-2016, 10:31 PM   #2
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Are you by chance using your water pump while connected to 'city' water? If no... I have no suggestions other than dealer.

I see you are from Modesto I was born there, enrolled at Davis High school and then started moving around the country (parents issue) and finally landed here in Colorado... anyway shout out to ya.

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Old 08-25-2016, 10:45 PM   #3
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No, the water pump was off. We had left to go to dinner and visit friends and several hours later returned to water flowing out of the overflow fresh water valve. Thank you for your inqirery.
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Old 08-25-2016, 10:47 PM   #4
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Yes, have lived in the Modesto area for many years. Actually grew up in the Chico area which is where this incident occurred. Wife born and raised here.
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Old 08-25-2016, 10:56 PM   #5
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Yes, have lived in the Modesto area for many years. Actually grew up in the Chico area which is where this incident occurred. Wife born and raised here.
Sorry I couldn't help you resolve the water problem.. I've been told to disconnect city hookups if I'm not at the camper, always use a pressure regulator in case the city supply has too much pressure, etc.. perhaps you have a valve problem. If you email Jayco they can send you something resembling a 'blue print' of your water system and you can isolate the issue. Good luck to you!
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Old 08-25-2016, 11:03 PM   #6
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Yes, I had a Campco water restricter on. I think I will turn it off when not present at the trailer. Thanks for the advice.
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Old 08-25-2016, 11:39 PM   #7
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is the valve turned off that allows the pump to pull water from the storage tank? Maybe its getting to the tank that way.
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Old 08-26-2016, 12:02 AM   #8
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When I drained the fresh water tank I believe there were two valves turned. Once turned, I thought I put them back into their original position. I ma not have. I will need to determine which valve it is and check to make sure. Thanks for the thought.
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Old 08-26-2016, 01:49 AM   #9
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I had a jayco trailer that also filled the fresh water storage tank when hooked up to city water. The problem was my shurflo pump that had a bad check valve built into the pump.The trailer was still on warranty and the dealer gave me a brand new one.
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Old 08-26-2016, 04:51 AM   #10
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I had a jayco trailer that also filled the fresh water storage tank when hooked up to city water. The problem was my shurflo pump that had a bad check valve built into the pump.The trailer was still on warranty and the dealer gave me a brand new one.
Jimmy has this one nailed for you. The check valve in the water pump is allowing backflow to the fresh water tank.

You can try disconnecting the city water an running the water pump for a few gallons. A piece if grit may have been stuck in the valve. This may flush it out.

If the problem persists you can replace the pump. Or purchase an add-on inline check valve. That would be less expensive.

I would also recommend using a water filter for ALL water entering the camper. City water connection and filling the fresh water tank. The valves used in RV's do not tolerate particles or sediment very well.
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