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Old 06-05-2016, 09:18 PM   #1
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Fresh water tank problem

Bought new 2016 Eagle HT 27.5RKDS..Filled fresh water tank to go camping for the weekend. Filled the tank till water was running out of the overflow tubes and panel says full. After only 2 quick showers and some dirty dishes we were out of water already. When we got back home I filled the tank again till running out overflow tubes and panel said full. I then drained it out the valve into 5 gallon pails. I'm only getting 4 pails outa the tank, about 20 gallons...Freshwater tank should be 48 gallons...Anyone know what my problem is.
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Old 06-05-2016, 09:35 PM   #2
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Does the water keep flowing from overflow? It can siphon, but never heard of one that almost empties the tank. I put a barbed wuarter turn brass valve on mine. When water shows I close valve and removed fill home. I open the overflow valve once I've used some from tank.
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Old 06-05-2016, 09:43 PM   #3
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No it quits running out soon after shutting water off..Its like they used a 20 gallon tank for the fresh water...or the tank that should be installed is half full of spray foam. Or maybe they have a gray tank and freshwater tank plumbed wrong..See what dealer has to say in the morning.
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Old 06-06-2016, 05:50 AM   #4
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Wow! Curious to hear what you find out
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Old 06-06-2016, 03:10 PM   #5
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one other thing I do when filling is kick on the pump and fill the six gallon water heater and all plumbing. This could explain some loss in a small holding tank. Mt fiver has 95 gallons of fresh water and I make it stretch to 100.
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Old 06-06-2016, 03:14 PM   #6
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Your water capacity includes the capacity of the water heater. Not sure if you have a 5 or 10 gallon water heater, but subtract that from the 48. Still, you seem to be coming up way too short....
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Old 06-06-2016, 03:30 PM   #7
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Quote:
Originally Posted by buzzard01 View Post
No it quits running out soon after shutting water off..Its like they used a 20 gallon tank for the fresh water...or the tank that should be installed is half full of spray foam. Or maybe they have a gray tank and freshwater tank plumbed wrong..See what dealer has to say in the morning.
When you emptied it into the buckets what did it say on the gauge?

Now you have to measure how much you're putting in til it's full.
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Old 06-06-2016, 04:17 PM   #8
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Originally Posted by Cosmik Debris View Post
Does the water keep flowing from overflow? It can siphon, but never heard of one that almost empties the tank. I put a barbed wuarter turn brass valve on mine. When water shows I close valve and removed fill home. I open the overflow valve once I've used some from tank.
The newer models use a 2" pool hose as the overflow. Adding a valve would be a bit different.

I think they fixed the siphon issue with that larger hose. However, I do notice that I do loose some additional water on turns when I travel with a full tank.

I'm kind of curious as to what I would find if I drained the tank, although, I don't expect that I'd find what the OP found. I find that the water lasts as long as what I would expect.
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Old 06-06-2016, 04:24 PM   #9
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one other thing I do when filling is kick on the pump and fill the six gallon water heater and all plumbing. This could explain some loss in a small holding tank. Mt fiver has 95 gallons of fresh water and I make it stretch to 100.
Actually, while you are hauling 100 gallons, you don't have access to all of it.
What you are doing makes sense, but you really only will have access to 95 gallons (and probably less because you can never completely empty your FW tank).
You won't get more than 95 gallons because that 5 (6?) gallons in your water heater and plumbing is never available to you. Once you are completely out of water, you will still have a water heater full of water. It only comes out of the hot water tank when there is water coming from your fw tank to push it out.

What you are doing is a good thing, because if you didn't do it, you would have access to even less water.
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Old 06-06-2016, 05:44 PM   #10
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I crack the taps and turn on the pump when I fill to get the most I can and make sure the hot water tank is full...Before I filled trailer tank I filled a 5 gallon pail with the same water hose I use to fill trailer and that took 2 minutes. so by right it should take roughly 20 mins to fill trailer tank but it only took 10 mins which equals to about 20 gallons and when I drain that's all I get back is 20 gallons...Took it back to dealer today, see what they come up with.
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