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Old 07-14-2011, 05:19 AM   #11
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Originally Posted by FPM III View Post
Then, I guess the other hose isn't a low-point drain either.
No the low point drain is at the rear of the TT.

Photo 1 is the fresh water tank drain.
Photo 2 is the 2 overflow hoses and the tanks drain in the background.
Photo 3 is the low point drains.
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Old 07-14-2011, 07:38 AM   #12
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OK. I'm out of ideas. I have both a front and rear low-point drain, but my TT is a bit longer than yours judging by the model numbers. Besides, they (the manufacturers) tend to do things differently than they did in 2000. Sorry I couldn't be of more help.
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Old 07-14-2011, 08:08 AM   #13
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Water Tank Vents

I had the same thing happen this week on my maiden voyage to the NASCAR track in NH. By the time I got to the track I had lost 1/4 tank according to guage. A friend that was following me said I was loosing water all the way from his house which was about 20 miles. This a 2011 T26Y toyhauler which has two tanks hooked together.
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Old 07-14-2011, 05:09 PM   #14
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I think that the hoses are too close to the top of the tank.
I may buy about 6 feet of hose, cut it in half and coil it up, zip-tie it up to the frame.
My fold down had the overflow vent through the fill tube, there is a vent hose connected to the fill port to vent expanding air as you fill it.
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Old 07-14-2011, 05:25 PM   #15
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I think that the hoses are too close to the top of the tank.
I may buy about 6 feet of hose, cut it in half and coil it up, zip-tie it up to the frame.
My fold down had the overflow vent through the fill tube, there is a vent hose connected to the fill port to vent expanding air as you fill it.
Hey Big Jim, does you 22FB have the same drains set up I posted in the photos above? I don't lose any water.
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Old 07-15-2011, 08:35 AM   #16
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Honestly folks, a pair of these will resolve your problem. Just clamp them on the overflow hose after you fill your tank. Then, remove them once you're all set up.



Lisle 23000 Hose Pincher

By the time you buy the materials to engineer and implement the modifications you're describing, you could simply buy something like this which requires no modifications at all- simply attach it to your drain overflow hose.
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Old 07-15-2011, 08:43 AM   #17
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I have the same hose setup and realized I was losing quite a bit of water. What I did was bought a couple of plastic barbs w/ 1/2" thread on the the other end. Inserted the barb into the tubes held on with hose clamps. Then I screwed 1/2" PVC valve on the threads of the barb. When filling I open the valves. Once full, close the valves, go to the campground and once in place reopen the valves w/ a still full tank of water. Probably a grand total of $6 in parts.
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Old 07-15-2011, 09:14 AM   #18
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Yes, mine look the same, only I have 2 tank drains.
May go the shut-off route, that JW has. Be easy to open and close.
Like those Lisle clamps may have to get a pair for fuel line for my Mini Bikes!
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Old 07-15-2011, 02:52 PM   #19
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Common problem

I have a 2010 Jay Flight 23FB with the same problem. When I got to the lake, according to the fresh water gage, I had lost 1/3 of my water.

I called Jayco & they told me I could plug the overflow lines to correct the problem. The guy warned me to check and see if the vent was connected at the fill hole. He said some aren't hooked up. If it's hooked up, you're safe to fill with the two overflows plugged. He said to check, you can plug the overflow tubes & carefully start filling. Use your lips, a flame, feather or something to detect if air is escaping from the vent next to the filler hole. Another suggestion is to look under the sink or wherever to see if a hose is connected at next to the fill hole.

I installed a shutoff in each vent hose & plan to open them when I fill. If I forget to open them, my vent next to fill hole should keep me from damaging my fresh water tank. Hope this helps.
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Old 07-15-2011, 03:09 PM   #20
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Quote:
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No the low point drain is at the rear of the TT.

Photo 1 is the fresh water tank drain.
Photo 2 is the 2 overflow hoses and the tanks drain in the background.
Photo 3 is the low point drains.
Your setup looks similar to mine. A drain for the fresh tank, 2 overflow hoses, and my other 2 low point drains are on the back, accessed under the rear bunk.(pull up valves)
As for the gauge, my fresh tank never seems to read no more then 2/3 full, even when overflowing. The gauges for all tanks are very unreliable IMO.
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