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Old 08-06-2013, 08:17 PM   #1
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Water tank not empty ...

I have a 2013 sabre rkok fifth wheel, using it this summer found the fresh water was running out fast, pump was making an sound empty and taps flowing like a typical empty tank. refilling seemed very quick so I filled a barrel when it did it again and only took 15 gallons to fill. also checked filler and vent pipe.. all good... what is causing this and how do I correct it? trailer is level whenever this happens and about 20 gallons is left in tank if I drain what is left after the pump has run dry...
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Old 08-06-2013, 08:57 PM   #2
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You have a PEX hose running from the FW tank to the pump. Can you see how high it is connected on the FW tank? Mine is on the bottom of the tank but I had one trailer where it was 2" up the side of the tank; making it impossible to use the full capacity.

Or, maybe a vent issue, but that's a wild guess.

Can you see the connections to your FW tank?
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Old 08-06-2013, 09:02 PM   #3
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I'm guessing I will have to take a cover panel off the bottom to see the hidden tank and go from there, but that is what I suspect is happening...thx any other suggestions are welcomed before I start exploring the problem...
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Old 09-03-2013, 10:13 PM   #4
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anyone know the best way to access the suction for the fresh water tank, dealer is telling me factory most likely mounted it too high and not emptying tank....didn't figure out until off warranty so sol...thx
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Old 09-03-2013, 10:40 PM   #5
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The FW tank shouldn't be too far from the drain for it...may only have to remove the section of underbelly nearest the drain. If the suction for the pump is mounted too high, some have modified the tank drain adding a 'T' and hooking the pump supply to it. You see what's needed after you've had a look.

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Old 09-14-2013, 07:37 PM   #6
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Thanks so much for the advice Dave, that is exactly what I did, much easier and cheaper than retapping an inlet at a lower spot that the manufacture should have done in the first place, thx again...
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Old 09-14-2013, 09:25 PM   #7
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Quote:
Originally Posted by Dave_Monica View Post
The FW tank shouldn't be too far from the drain for it...may only have to remove the section of underbelly nearest the drain. If the suction for the pump is mounted too high, some have modified the tank drain adding a 'T' and hooking the pump supply to it. You see what's needed after you've had a look.

Dave
thats a great idea..
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