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Old 08-12-2016, 10:42 PM   #1
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Camper Ken's Avatar
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Do I have a water leak?

When using water from the tank and I turn on the water pump it usually runs for a brief moment. Does this indicate I have a water leak? Or is it because the gravity fill opening is not air tight when closed? It has a door which closes against the filler opening.

Thanks for any and all advice.

2016 Itasca Navion 24J (Mercedes 3500 chassis)
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Old 08-12-2016, 11:28 PM   #2
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If I understand what you are saying, I would think that the pump is running long enough to build pressure in the lines. Pressure could be lost by bleeding back through the pump or by opening a faucet without the pump on. If it does not cycle off and on when sitting in the on position, then the system is good.

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Old 08-12-2016, 11:28 PM   #3
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The pump goes on and off based on the water pressure in the line from the pump. When the pressure drops if a faucet is opened, the pump turns on. When the faucet is closed, the pressure builds and the pump shuts off. If there is a leak it will cycle on/off. If you cannot see evidence of a water leak it may be leaking past the check valves and go the FW tank. Not a big deal, you just have to wait a few seconds for the pump to fill the lines when you open the faucet. A leak in the check valves might also manifest its presence if the FW fills when you are connected and using city water.
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Old 08-13-2016, 12:35 AM   #4
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if the pump is just running 2-3 pumps after your turn the power on, it's normal. mine does the same, i know for a fact mine does not leak.
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Old 08-13-2016, 09:48 AM   #5
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Mine does that and has since new. It is just the pump bringing the lines up to pressure. When you need to worry is when you have the pump on and it is already primed, and then you hear the pump coming on for short bursts every so often and nobody is using any water. Then I would start looking further.
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Old 08-13-2016, 10:07 AM   #6
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Don't forget that if you have an ice maker it also uses water and the pump will cycle.

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leak, water, water leak

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