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Old 05-31-2011, 03:16 PM   #51
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I see it now. It appears the black valve is past the grey valve in your drawing which verifies what you are saying, the black valve/tank must be open to drain the grey. That is a strange and inconvenient setup IMO.
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Old 05-31-2011, 04:11 PM   #52
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The instructions do say owners should empty the black tank before they empty the grey tank but I don't believe this implies the black tank must be drained or empty before the grey tank dump valve can be opened.

Let's assume the black tank is full, partially full or empty & the black tank valve is closed. Now we open the grey tank dump valve. If the valve remains open, fluid should flow through the grey holding tank and out the sewer hose housing. If your diagram is correct, grey water would not flow freely if the black tank valve is closed. That seems contrary to what actually happens.
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Old 05-31-2011, 04:40 PM   #53
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I am scratching my head on that one too...I have not seen a setup like that on a new model Jayco.

I am trying to doubt you, but have you actually crawled up there and verified and tested that is the setup?

If it is in fact like that, time for a mod! lol
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Old 05-31-2011, 05:00 PM   #54
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Somewhat off the. Current topic, sorry... if you leave the grey water valve open to the sewer, wouldn't fumes travel into the trailer? Water traps aren't 100% fume proof.
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Old 05-31-2011, 05:05 PM   #55
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Quote:
Originally Posted by Zombied View Post
Somewhat off the. Current topic, sorry... if you leave the grey water valve open to the sewer, wouldn't fumes travel into the trailer? Water traps aren't 100% fume proof.
They should not since the grey tank is vented. I have never had an issue.
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Old 05-31-2011, 10:20 PM   #56
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Oh. I didn't know there was a vent.. should have researched more I guess. Thanks!
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Old 05-31-2011, 10:49 PM   #57
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No problem....You were doing research
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Old 07-30-2011, 03:47 PM   #58
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Okay, seem to be having some kind of trouble now with the black tank. For some reason the odor is coming back into the TT. I use the wand after every dump, never leave the black valve open, and use the deodorant for the black tank, but still getting a nausiating smell in the TT, more in the bunk house area than actually in the toilet. The black tank is installed under the bunk house, is it possible that the smell is leaking up from the tank? I thought they were sealed except for the toilet and the dump valves...am I correct?
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Old 07-30-2011, 04:18 PM   #59
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The tank has a vent going up to the roof if might be clogged. You may be able to unclogged it by removing the cap and fishing a regular toilet snake down.
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Old 08-02-2011, 12:46 AM   #60
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In the middle of our first extended stay. Have some slight odor problems too. Tomorrow we are going into denver, so I might look into a flushing system or something. Also we are out of chemicals after the last dump.
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