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Old 06-01-2015, 08:31 PM   #1
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Water pump modifications

Does anyone know how to modify our water pump to "fill" our fresh water tank? I noticed this guys method(How To Use RV Water Pump to Fill Freshwater Tank for Easy Boondocking) But it won't work for me since I don't have the pressure relief hose up in the pump compartment. Can I just put a t valve with a on/off switch on the output side and T that back into the input hose?

I'll be using the winterizing hose on the input side so nothing will be getting pumped up through the tank.


I tried filling the water tank through the tank fill port on the side with a funnel and 6 gal jug but the stupid check valve wasn't letting water back in. I even had a small enough funnel to make sure that was pressed in.


by the way this is on a 2013 vibe 826vfk
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Old 06-01-2015, 08:39 PM   #2
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Some people just buy a second pump and use the four prong plug on the tow rig for power.
Couple of short hoses to move the water to and from.
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Old 06-01-2015, 10:12 PM   #3
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Does anyone know how to modify our water pump to "fill" our fresh water tank? I noticed this guys method............................................ .................................................. .................([url=http://www.liveworkdream.com/2014/02/13/rv-freshwater-pump-boondocking-modification/]How this is on a 2013 vibe 826vfk
If you have a docking station with all the valves and an outside shower nozzle it's quite easy! (1) If your potable water tank is filled with a garden hose fitting you attach your shower nozzle to the inlet for the potable water tank. (2) Then you select your winterizing valve to winterize as if you were going to winterize, except you put that hose into your potable water jug and turn on the pump. Your pump will now fill your on board water tank. Good luck.
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Old 06-02-2015, 09:02 PM   #4
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I do have an outside shower, I'll just need an adapter to go from the shower hose to the fill port. The current hose is smaller than your garden hose.
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Old 06-02-2015, 09:28 PM   #5
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I do have an outside shower, I'll just need an adapter to go from the shower hose to the fill port. The current hose is smaller than your garden hose.
Do you have a re moveable nozzle on the end of the shower hose, it might fit the fill port. We have a garden type nozzle on the end of our shower hose and when removed it fits perfectly to the fill port.
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Old 06-02-2015, 09:58 PM   #6
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Yes it's removable however it's a female end not the male end that you need to connect to the fill port. It's also about a 1/2" thread and not the 3/4" thread that is on the garden hose.

I have the water bandit so that might work. I'll test it out tomorrow to see if it creates a good enough seal around the shower nozzle.
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Old 06-02-2015, 10:00 PM   #7
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Yes it's removable however it's a female end not the male end that you need to connect to the fill port.
Adapter it is then!
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Old 06-02-2015, 10:03 PM   #8
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Yup, I'll just go to hardware store and get a 3/4" male to 1/2" male hose fitting.
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Old 06-03-2015, 08:14 AM   #9
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Hang on a second... doesn't the Vibe have a gravity fill for the FW tank? Seems the OP has the city water inlet confused with the FW tank fill... there should be a screw off cap with about a 1" inside diameter and a air vent.

You would use the outside shower to pump water to the fill inlet... not the city water connection.

Some RV's have the same style of freshwater holding tank inlet as the city water connection, called pressure fill. But most TT have the gravity fill type.

As shown... the freshwater tank inlet is the bottom one... the city water is the top... the middle is the bypass or winterizing inlet.
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Old 06-03-2015, 07:55 PM   #10
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Nope not mine. I have a city connection, a black tank flush connection and then the fresh water (tank) connection.
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