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Old 06-26-2020, 12:25 AM   #1
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Kitchen gray tank

Endurance 3316g with full kitchen gray tank. All valves open and still not draining. Had one month, only water in sink, no food... any ideas on how to get gray water kitchen tank to drain? Two black pipes under trailer one definitely drains black tank and a gray tank, but not sure what the function of the other pipe. Most of what I have found say only one gray tank, but monitor suggest kitchen gray is full as well as sink back up.
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Old 06-26-2020, 12:55 AM   #2
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Your missing a pull handle somewhere for the other tank. Follow the frame back and you will find it sticking out. Click image for larger version

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Old 06-26-2020, 02:01 PM   #3
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Quote:
Originally Posted by Shaneerph View Post
Endurance 3316g with full kitchen gray tank. All valves open and still not draining. Had one month, only water in sink, no food... any ideas on how to get gray water kitchen tank to drain? Two black pipes under trailer one definitely drains black tank and a gray tank, but not sure what the function of the other pipe. Most of what I have found say only one gray tank, but monitor suggest kitchen gray is full as well as sink back up.

Looks like you have a second discharge pipe next to the one your are connected to in that pic. Like the other response says, follow that pipe back towards the tank and there will likely be another pull valve.

I had a similar experience as the guy that did my delivery never pointed it out and it is in a different location than my black and front gray tank. My second gray tank valve is way in the back behind my axles even though it feeds into the same discharge outlet as the other two. Mine was actually open so the first time I camped and removed the cap I was showered with gray sink water (fortunately not black!).
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Old 06-26-2020, 03:42 PM   #4
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These photos are from a Voltage toy hauler... but yours should be similar:

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Old 07-02-2020, 02:20 AM   #5
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Figured it out

As you all said a second drain. No missing valve, just controlled by the valves up front. Guess I did not open the right valve when I hooked drain hose to second connection. Wish you could find diagrams from manufacturer to tell you how these are supposed to work. Thanks for the replies.
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