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07-19-2015, 09:29 PM
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#1
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Senior Member
Join Date: Dec 2014
Posts: 102
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Water pump
Hello folks I have a question about my water pump I have a class C. After flushing the The bathroom the water pump would go on one or two times maybe a couple minutes after flushing
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07-19-2015, 09:32 PM
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#2
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Senior Member
Join Date: Dec 2014
Posts: 102
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And now it seems after flushing the bathroom The water pump will go on maybe five times. 5 to 10 minutes after I flushed. do I have a leak somewhere.
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07-19-2015, 09:35 PM
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#3
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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Quote:
Originally Posted by on2thenext
Hello folks I have a question about my water pump I have a class C. After flushing the The bathroom the water pump would go on one or two times maybe a couple minutes after flushing
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A little more info.
What breed of class A are we talking about?
Are you connected to city water?
The pump is designed to start on a low pressure. IE, when you open a tap and the pressure in the system drops, the pump starts and draws water from the fresh water tank to the open tap. Close the tap, the pressure builds up and finally shuts off when the set point is reached.
That is the basic design of RV water pumps.
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2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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07-19-2015, 09:47 PM
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#4
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Senior Member
Join Date: Feb 2012
Location: Lake County, IL
Posts: 1,584
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If you had a leak, the pump would alsocome on at random times.
Joel
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Retired electronics engineer. Avid paddler & birder.
2011 Silverado 2500HD, diesel, 4x4,crew cab, 8' bed
Palomino Puma 253FBS (27' 5er) & '94 19' Class B
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07-19-2015, 09:57 PM
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#5
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Senior Member
Join Date: Dec 2014
Posts: 102
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I have a class C . I am not hooked up to city water. Like I mentioned when I use to flush the bathroom the pump would come on and do it's thing. and a minute or two later it would come on one more time. But now when I flush the bathroom the pump will come on do it's thing and several minutes later it will repeatedly come on at least five times up to 10 minutes after I have flushed and then it will stop
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07-20-2015, 05:15 AM
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#6
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Senior Member
Winnebago Owners Club
Join Date: Sep 2013
Location: Ft Worth texas
Posts: 1,110
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Check the check valve in the pump intake side. I installed a new pump and water was going back in the tank once pump shut down and pump came pack on to pressurized the system. So I went to the hardware store and bought another inline check valve. System works great.
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2003 Sightseer 33L
Ford F53
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07-20-2015, 03:25 PM
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#7
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Feb 2010
Location: Buffalo, NY
Posts: 1,632
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Yes, it sounds like you have a leak. Having the pump come on by itself when no water is being used is a classic leak indication. If you don't see water spraying or dripping anywhere, it could be pump's internal valves are leaking and the water is going back into the tank just like Johndale describes.
If you have a shutoff valve between the water tank and the pump inlet, try closing it immediately after the pump first stops after a flush. Wait long enough to see if the pump still tries to cycle. If it does not, then you have found your leak: it's the pump. If it does try to cycle, open that valve right away or else the pump will be straining against the closed valve.
Does it ONLY happen while flushing? if so, it could be a leak inside the toilet. Open a sink valve long enough for the pump to start pumping, then turn it off. Does the pump stop and stay stopped? If so, the leak could be in the toilet (maybe the water valve is sticking and it's taking a few minutes for the it to close completely?) If it still does the cycling, then it's likely not the toilet and is elsewhere.
Don't let this just sit without figuring out what's going on. You could be having a leak in a hidden spot, and not notice it until it's done a lot of rot and damage.
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Adam and Sue, and a pack of little furballs
2007 Holiday Rambler Endeavor 40PDQ Limited Edition - Cummins ISL 400
2013 Ford F-150 FX4 toad - USGear Unified Tow Brake, Roadmaster Blackhawk II Tow bar, Blue Ox baseplate
Home base near Buffalo NY, often on the road to a dog show
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07-20-2015, 04:03 PM
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#8
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Senior Member
Join Date: Oct 2011
Location: Ft wayne Indiana
Posts: 479
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If it only does it when the toilet is flushed I would be suspect of the flush valve in the toilet not sealing right away maybe something as simple as a weak spring.
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07-20-2015, 04:53 PM
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#9
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Senior Member
Join Date: Jun 2002
Location: Brick, New Jersey
Posts: 273
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Quote:
Originally Posted by Elf111
If it only does it when the toilet is flushed I would be suspect of the flush valve in the toilet not sealing right away maybe something as simple as a weak spring.
Sent from my iPhone using iRV2 - RV Forum
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X2 on this. Most likely the toilet valve is not seating properly and you have some trickle taking place.
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Rob Hentges
31ft Dutchmen Royal Classic
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