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Old 03-20-2020, 06:45 PM   #1
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What is this pipe for?

Hey all

I just moved from a 2018 23ft flying cloud bunk to a 2015 30ft flying cloud bunk. This model has an electric flush dometic toilet. I noticed a pipe coming out of the bottom of the airstream near the black and grey tanks that I am not sure what it should do. When I flush with water on the toilet, I notice that water comes from this pipe out onto the ground.

Can anyone help me understand what this pipe is for and whether this is normal?

I have attached a photo.
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Old 03-20-2020, 06:52 PM   #2
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Before judgement what if you put some food coloring in the commode and flush again. I'd really like to know for certain before guessing.
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Old 03-20-2020, 06:55 PM   #3
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It’s a low point drain and the valve is open. Close the cable and the water will stop coming out when you flush.
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Old 03-20-2020, 06:57 PM   #4
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[AF site very slow -- will look later for threads on macerator toilet drain for water feed line]


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Old 03-20-2020, 08:42 PM   #5
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Unfortunately I don't have any food coloring, we are out camping while we still can!

Nothing comes out when I flush without water (dry flush) so it's not draining my pee at least!

If it's the low point drain, how do I turn off? I couldn't find anything in the manuals for this, hence my questions!

Thanks so much
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Old 03-20-2020, 09:03 PM   #6
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Well I googled and found the low point value and it's not one I can turn with my hand and need a wrench. I don't have one in the woods. Argh

So it must be open and that is why my fresh water tank is draining so fast!

The 2018 FC had the red values you could turn with your hand but the 2015 appear to need a wrench.
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Old 03-20-2020, 09:15 PM   #7
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What is this pipe for?

In my 2018 you have to pop out the panel with the air vent. It is under the pantry, a small square panel. Once out I have a quarter turn valve right under the air duct. It is in the same place as the water pump.

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Old 03-20-2020, 09:48 PM   #8
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Oh interesting, I found two valves under the camper that need a wrench but didn't know about these. Are these your low point drains and you don't have ones under the camper or do you have both?
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Old 03-20-2020, 10:04 PM   #9
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What is this pipe for?

We had the same issue. See this thread: https://www.airforums.com/forums/sho...d.php?t=188427
143pm has the solution that worked for us - pop the vent panel by the floor to the left of the oven and close the valve back there.
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Old 03-21-2020, 03:23 AM   #10
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Quote:
Originally Posted by Alreddawg19 View Post
Hey all

I just moved from a 2018 23ft flying cloud bunk to a 2015 30ft flying cloud bunk. This model has an electric flush dometic toilet.
Is this a macerator toilet? Does your owner's manual give you any special instructions for winterizing the cold water supply line for the toilet?

The site is working better this morning, I will look for the threads I could not find last night.

Possible leads here:

https://www.google.com/search?q=30%2...=airforums.com

Bingo here?

https://www.airforums.com/forums/f16...et-183480.html
https://www.airforums.com/forums/f54...et-155658.html

Similar photo in Post #3 at last link:



Post #18 at the same link -- click on orange arrow in quote to go directly there:
Quote:
Originally Posted by thoreau2104 View Post
Called Colonial, dealer where I purchased new, and they tried to walk me though of how to find this white valve. I was unsuccessful after three calls, 1 service call when they never addressed that issue but completed the other repairs and finally I brought the trailer in and the gentleman that did my walk through originally was able to locate for me. Which is quite easy when you know where it is and the toliet bowl works 10x better once you close it.

It's located by popping off the ducted vent under the kitchen drawers. I was told back to the left but it is indeed to the right and located directly under the duct that you will need to push aside. You will need a flashlight as it is difficult to see and maneuver.

You shouldn't need to remove any drawers. But to give yourself some more space and more light you may want to work the bottom drawer free. Getting the drawers off easy. Back on is a little tricky. Good luck.
Please update us, Alreddawg19, after reviewing the above. If I have the wrong valve in mind, it would be helpful to know that. Thanks.

Good luck,

Peter
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Old 03-21-2020, 03:41 AM   #11
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Quote:
Originally Posted by GMFL View Post
It’s a low point drain and the valve is open. Close the cable and the water will stop coming out when you flush.
Were you referring to the same valve I just posted about? Where is "the cable" located?

Thanks,

Peter
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Old 03-21-2020, 03:49 AM   #12
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PS -- Post #34 in that thread has a photo of the valve in question under the heat duct:




Posts #7 and #9, here in this thread, had the answer all along. Sorry for the long detour!

Peter
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Old 03-21-2020, 07:07 AM   #13
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Hot water tank drain. It comes from the bottom of the tank piping. It should be closed.
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Old 03-21-2020, 09:12 AM   #14
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It was the value where the heater vent is next to the stove. When I got in there this morning, it looked like the value was partially open so I turned it off and the water stopped coming out.

Thank you all for your help! You all saved the last bit of fresh water we have on this camping trip.

Luckily Washington state parks are still open
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Old 03-21-2020, 09:17 AM   #15
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Quote:
Originally Posted by Alreddawg19 View Post
It was the value where the heater vent is next to the stove. When I got in there this morning, it looked like the value was partially open so I turned it off and the water stopped coming out.
. . .
Great . . . thanks for the update.

Happy trails,

Peter
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Old 03-21-2020, 10:25 AM   #16
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That drain pipe allows you to drain the water heater for winter storage without pulling out the outside water heater plug (however I drain both when I winterize the trailer). I leave it open in the winter to take a pressure out of the water heater tank so it will not break. If you use air pressure to winterize the trailer, the value must be closed (and then reopened after winterized). You close the value in the spring when you fill the trailer with water. There are two values connected the water heater. One bypasses the water heater (not allowing water to go into the tank) and the other drains the water heater. Both values should be near the tank.

The air pressure release value on the outside of the trailer (on the top side of the water heater) must be opened so the water will drain out of the tank. Air must go into the tank to allow the water out. Once the water is out, then close both the pressure release value and the cock value.
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