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09-11-2012, 06:54 AM
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#1
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Junior Member
Join Date: Aug 2012
Posts: 19
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Water pump
Have a new greyhawk 31ds. We are on a month long trip to the northeast. I have noticed that when I am on park water (city fixtures), it sounds like the water pump is running all the time. I can switch valves to normal and the pump shuts off, but when I turn back to city fixtures the pump runs. is this normal ? Any thoughts?
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09-11-2012, 06:57 AM
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#2
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Junior Member
Join Date: Aug 2012
Posts: 19
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Also the water pump seems to be pulsing in normal settings.
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09-11-2012, 09:44 AM
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#3
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Senior Member
Join Date: Feb 2012
Location: SE Wisconsin
Posts: 455
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You should shut off your pump when you are drawing from a 'city water' source.
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1998 Jayco Eagle 302FK (Honda EU3000is)
2016 GMC Sierra Denali 3500HD 4x4 Duramax/Allison
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09-11-2012, 12:14 PM
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#4
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,773
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When you are connected to city water the pump is turned off.
When running off the fresh water tank, the pump is on. All water pumps seem to all pulsate a bit. To reduce the amount of pulsation you can add a small accumulator tank, after the pump.
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09-11-2012, 06:58 PM
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#5
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Senior Member
Join Date: Dec 2010
Location: Central PA
Posts: 1,236
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When you are connected to "city water" the water pressure moves the water through the water lines. Your pump should be turned off. You only need the pump to supply water when you are using your fresh water holding tank.
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Tracy from Central PA
2010 Jayco 17Z Ex-Port
2004 Ford Explorer V8 with the tow package
2010 Camping Stats
Nights Camping 132 - Nights Camping in My Z 102
2011 Camping Stats
Nights Camping 107
2012 Camping Stats
Nights camping 133 - Nights camping in my Z 128
2013 Camping Stats
Nights Camping 66 Nights
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09-16-2012, 07:27 PM
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#6
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Senior Member
Join Date: Sep 2011
Location: Luray, VA (central Shenandoah Valley of VA)
Posts: 1,430
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X4
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2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, Teddy (Jack Russell terrier), and Honey (Beagle)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.
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09-20-2012, 07:51 PM
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#7
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Junior Member
Join Date: Mar 2012
Posts: 7
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We often go in campgrounds where there is no water hookup so for us it is natural to open the pump switch when we get installed. About a month ago we went to a campground that had a water hookup but we mistakenly put the pump switch at on and there was no water in the tank. A/C was on so we could not here the pump. We realized our mistake after 4 hours. Amazingly enough the water pump still works fine.
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2012 Jayco X17Z
2011 Kia Sorento
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09-20-2012, 08:55 PM
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#8
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Senior Member
Join Date: Dec 2010
Location: North Idaho/Arizona
Posts: 5,446
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The pumps are very tough. They will run dry for hours without damage.
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2017 Silverado 1500 4x4 5.3 with tow package. (no, we don't tow the Jayco with it.)
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Life in the slow lane is still life.
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07-10-2015, 08:48 AM
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#9
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Member
Join Date: Jul 2015
Location: Dearborn Heights
Posts: 64
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We turned our pump on before switching from city fill, now pump pulsates when using bath or kitchen faucets. Tankless water heater now also makes a 'clunking' noise when not in use.
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07-10-2015, 08:51 AM
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#10
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Senior Member
Join Date: May 2015
Location: Campbell Hall
Posts: 2,835
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Quote:
Originally Posted by Jamnpete
We turned our pump on before switching from city fill, now pump pulsates when using bath or kitchen faucets. Tankless water heater now also makes a 'clunking' noise when not in use.
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You pumped air into the water system.
Re-purge.
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TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!
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07-10-2015, 09:24 AM
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#11
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Member
Join Date: Jul 2015
Location: Dearborn Heights
Posts: 64
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Opened all faucets and showerheads, hooked up water and reset manifold to city use, then after everything was running smooth, shut down, disconnected, set manifold to normal, still pulsing.
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07-10-2015, 09:31 AM
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#12
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Senior Member
Join Date: Jun 2015
Location: Oklahoma City
Posts: 151
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This is what happened to me. I first made suer enough water was in the FW tank. I then turn on the tap long enough to pressurize it enough that the pump shuts off. I then switch the valves to city fixtures. The pump ran again with taps open but shut off after another 3-5 minutes.
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2015 Precept 29UM
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07-10-2015, 09:41 AM
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#13
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Member
Join Date: Jul 2015
Location: Dearborn Heights
Posts: 64
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Did this clear the pulsing?
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07-10-2015, 10:30 AM
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#14
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Senior Member
Join Date: Jun 2015
Location: Oklahoma City
Posts: 151
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It stopped it for us.
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