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06-09-2016, 08:36 PM
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#1
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Junior Member
Join Date: Jul 2014
Posts: 13
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Water pump over fill
Hello all,
We have a 2014 sunseeker 3170 ds. I pulled into Rv site, and started to hook everything up as usual. I hooked up the water line to the city water hook up, water pump off. The next morning, we had water coming out the fresh water hook up. We turned off water and then noticed water under the bed compartment. Any suggestions what would cause this?
I now have to use pump for water out if fresh water tank.
Thank you for help.
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06-09-2016, 08:43 PM
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#2
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Senior Member
Join Date: Jul 2012
Location: SE Arizona's Gila Vally
Posts: 1,511
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Higher water pressure at the park can override the check valve at the pump causing it to backfeed to the FW tank. Happened to me at the SIlver City, NM KOA even with the cheapy WP regulator.
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2016 RAM 1500 - 2016 Keystone Laredo 265SRK
The road goes on forever and the party never ends.
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06-09-2016, 08:43 PM
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#3
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Left Coast
Join Date: Dec 2014
Location: vancouver,washington
Posts: 15,649
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Check valve in pump stuck open....got A regulator?
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06-09-2016, 08:44 PM
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#4
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Who Dares, Wins
Join Date: May 2012
Location: Chester County, PA
Posts: 7,063
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Check valves also stick sometimes.
Sent from my SM-G930V using Tapatalk
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06-10-2016, 04:08 AM
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#5
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Junior Member
Join Date: Jul 2014
Posts: 13
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Thanks for help. I have a two year old reg , should I change it? Guess that is a cheap fix. Oh and is the valve in the pump?
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06-10-2016, 04:17 AM
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#6
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by Dakotablue
Thanks for help. I have a two year old reg , should I change it? Guess that is a cheap fix. Oh and is the valve in the pump?
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You might not need to change it yet, It has happened a couple times to me, what I did was turned off the city water and just used the pump. After awhile turn the pump off and rehook up your city water. If the diaphragm went it will fill your fresh water tank again. Also clean the little bowl with the screen in it attached to the pump. They sell a kit to replace the diaphragm, but IMO it is better just to buy a new pump....  
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Coachmen M/H
Concord
2018 / 300 DSC
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06-11-2016, 06:55 AM
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#7
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Junior Member
Join Date: Jul 2014
Posts: 13
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Quote:
Originally Posted by Blackrock
Higher water pressure at the park can override the check valve at the pump causing it to backfeed to the FW tank. Happened to me at the SIlver City, NM KOA even with the cheapy WP regulator.
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Tjanks for help I will try this this weekend
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06-11-2016, 06:56 AM
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#8
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Junior Member
Join Date: Jul 2014
Posts: 13
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Quote:
Originally Posted by Dakotablue
Hello all,
We have a 2014 sunseeker 3170 ds. I pulled into Rv site, and started to hook everything up as usual. I hooked up the water line to the city water hook up, water pump off. The next morning, we had water coming out the fresh water hook up. We turned off water and then noticed water under the bed compartment. Any suggestions what would cause this?
I now have to use pump for water out if fresh water tank.
Thank you for help.
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Thank you all for help I will on it this weekend and let you know how it goes!!
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06-12-2016, 05:37 PM
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#9
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Junior Member
Join Date: Jun 2016
Posts: 10
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After some friends told me of the problems they had with cheap bullet type regulators... I purchased and installed a Watts home water pressure regulator in my hose line setup. set the pressure at 60 psi and never had any trouble, well worth the few extra dollars for the Watts.
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06-12-2016, 05:51 PM
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#10
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Senior Member
Join Date: Feb 2016
Location: Conroe, TX
Posts: 333
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This fixed my back fill problem:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
$7 shipped through my amazon Prime. Installed between my pump and the tank line in less than 5 minutes, simply unscrew line from pump and screw this in place between line and pump.
Beats open/messing with the failed pump internal check valve.
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