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 > Shower WOnt drain if Gray valve is shut

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Cmccain13

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Posted: 12/04/20 11:45am Link  |  Quote  |  Print  |  Notify Moderator

2021 Coachmen leprechaun 300bh
Ok so i have been looking at a lot of things on here and I cant seem to find the right answer. ( Preface, my motor home is a bit off level to the front) So first off I can turn on my sink faucets and run them for a good three minutes and no back ups when I turn them off there is a significant amount of gurgling coming from my walls. From the looks of it that is where the vent pipe is located. I was taking a shower and water was draining and then all of the sudden nothing, i mean not a drop more. i went to the roof to see if the vent was clogged and when i looked in there i could see water and it was bubbling. so i opened the valve and it all went away. so im not sure why water would be going up the vent pipe. I'm a first time RVer and need some help.

Matt_Colie

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Posted: 12/04/20 12:22pm Link  |  Quote  |  Print  |  Notify Moderator

Cmccain,

What valve did you open?

Is it possible that the gray tank was full to the level of the shower tray"

I don't know Coachman well at all so maybe someone with more familiarity can be more help.

Matt


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A sailor, his bride and their black dog (one is waiting for us at the bridge) going to see some dry places that have Geocaches in a coach made the year we married.


Cmccain13

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Posted: 12/04/20 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

Matt_Colie wrote:

Cmccain,

What valve did you open?

Is it possible that the gray tank was full to the level of the shower tray"

I don't know Coachman well at all so maybe someone with more familiarity can be more help.

Matt


Im refferring to when i close the valve to fill up the gray tank in order to flush the black water out when I am going to dump. even when the only water that would be in the gray tank is from the shower it drains for like one minute and then stops and wont drain at all. the gray tank is lower than anything else in the RV.

Lwiddis

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Posted: 12/04/20 12:48pm Link  |  Quote  |  Print  |  Notify Moderator

Air! Drains for a while and stops indicates a plugged air vent.


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Yeti plus

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Posted: 12/04/20 12:55pm Link  |  Quote  |  Print  |  Notify Moderator

With my Bigfoot truck camper, if the camper is lower on the passenger side the shower doesn't drain properly, and the water from the kitchen sink sometimes "washes" the bathroom floor. There is very little drop from the shower base to the grey water tank, and the piping is such that this happens. I just make sure that the camper is level, and there is no problem.
I would try levelling the coach, and see if that helps.


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johnwalkerpa1

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Posted: 12/04/20 01:05pm Link  |  Quote  |  Print  |  Notify Moderator

Am I understanding correctly that when you went on the roof, that the vent pipe was full of water?

And...when you then opened up the grey tank drain.....how much water came out? I.e. Was it just a few gallons or did it seem like the grey tank was full?

And... last question....is this a new issue or did it just start? Or is this the first time you used the rv?

Cmccain13

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Posted: 12/04/20 02:01pm Link  |  Quote  |  Print  |  Notify Moderator

johnwalkerpa1 wrote:

Am I understanding correctly that when you went on the roof, that the vent pipe was full of water?

And...when you then opened up the grey tank drain.....how much water came out? I.e. Was it just a few gallons or did it seem like the grey tank was full?

And... last question....is this a new issue or did it just start? Or is this the first time you used the rv?


SO it wasn't full of water but when I was looking down the pipe I could see some bubbling.

It the valve was open and draining until this morning when I closed it and took a shower. (tying to fill the gray tank in order to flush the black water out of the sewer hose) I opened the valve and only a few gallons came out.

I bought the RV brand new in October, we have used the shower only three times so far. Wheni took showers before the valve was open and the water did drain slowly then as well. water would pool up on the shower floor.

Old-Biscuit

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Posted: 12/04/20 02:07pm Link  |  Quote  |  Print  |  Notify Moderator

One of 2 issues:
Vent Pipe has slipped down into grey tank and gets blocked with water.
No Venting No draining ---IN or Out

Cutout disc fell inside tank and wasn't removed(plumbing lines in, vent line or outlet drain cutouts)
Disc has gotten pulled down to outlet and obstructing flow


Is it time for your medication or mine?


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Cmccain13

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Posted: 12/04/20 02:13pm Link  |  Quote  |  Print  |  Notify Moderator

Old-Biscuit wrote:

One of 2 issues:
Vent Pipe has slipped down into grey tank and gets blocked with water.
No Venting No draining ---IN or Out

Cutout disc fell inside tank and wasn't removed(plumbing lines in, vent line or outlet drain cutouts)
Disc has gotten pulled down to outlet and obstructing flow


when i got up top it doesn't look like the drain pipe fell in. how would I be able to tell the other one about the cut out. water is actually draining out when i open the valve though

johnwalkerpa1

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Posted: 12/04/20 02:13pm Link  |  Quote  |  Print  |  Notify Moderator

I was going to guess the cutout falling down as well.... because I have actually seen it! I know it sounds crazy but it happens!!! With a brand new unit, I’d get the dealer to handle it.

With the cut out issue, it usually will still drain just slowly.,. The cutout does not block the drain completely just slows it down a lot

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