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Old 05-28-2014, 11:07 PM   #1
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Water pump/i'm stumped

The question is that when I turn on the water pump it works fine but about every 30 seconds it comes on for a couple of seconds and drives me nuts. I have looked at everything and there is no leaks that I can find. But I do notice that when ever I turn on the water there is air popping out of the taps, where is the air coming from.


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Old 05-29-2014, 01:09 AM   #2
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Sure sounds like you have a leak somewhere in the system....the water pump should only run when it needs to pump water from the fresh water tank to replenish the water in the system.

Check under the trailer and look for a leak or a bulge in the underbelly material....there maybe water in the under belly.

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Old 05-29-2014, 01:58 AM   #3
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Welcome to JOF

Check around the pump for any connection air leaks and especially confirm that the winterizing anti-freeze valve at the inlet tube is completely closed.


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Old 05-29-2014, 06:47 AM   #4
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Hello Randy,

Check the external shower. Usually, one of the kids do not turn the knobs off tight enough.

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Old 05-29-2014, 06:49 AM   #5
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Worse case is the seals inside the pump.
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Old 05-29-2014, 09:05 AM   #6
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I never leave the pump on.. just flip the switch when I need it..
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Old 05-29-2014, 12:15 PM   #7
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Originally Posted by Seann45 View Post
I never leave the pump on.. just flip the switch when I need it..
X2 there. Even when hooked up at campgrounds we cut off water supply when we leave unit for awhile.

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Old 05-29-2014, 12:48 PM   #8
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Had this problem once.Turned out to be the toilet,you couldn't see it with naked eye,I finally found it by drying the bowl good, then laid some T paper around the inside of the bowl and saw that it got wet.
Also check all your low point drains outside under the trailer.
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Old 05-29-2014, 12:58 PM   #9
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I had a similar problem mine was the screen filter on the inlet side of the pump it had bad threds like a hair line crack and wouldnt seal replaced it and no more problems.
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Old 05-29-2014, 01:23 PM   #10
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If you have one of the short hose lines you use to stick down a PINK ANTIFREEZE bottle when winterizing check to make sure the cap is on good. might be sucking air there... Also some of them have a valve to turn before using - make sure that is in the right position.

Of course the water pump is only to be used if there is water in the fresh water tank. If you are connected to city water the pump should be turned off. The city water will pressure up your system.

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