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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Poop in outside sink

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kmdiddy

Shermans Dale, PA

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Posted: 04/05/21 01:13pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 2015 Keystone Laredo with an outside sink. I have owned the rig for 3 years. I took it out for the first trip of the season and after towing it seems that I am getting black water tank contents coming into the outside kitchen sink. I understand its fairly common for there to be a sink plumbed to the black water tank.

My thought is that my waterless trap has gone bad and is allowing black water to come back into the sink. Luckily it has remained in the sink and not come out all over the kitchen. It makes for a pretty terrible smell in the camper when we get to our destination. I have also now noticed a foul smell coming from the sink even when not in tow.

Is this a common failure? Any recommendations on a better waterless trap?

Lwiddis

Monterey, California

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Posted: 04/05/21 03:54pm Link  |  Quote  |  Print  |  Notify Moderator

Never heard of this issue.


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cougar28

Lowell,AR USA

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Posted: 04/05/21 06:00pm Link  |  Quote  |  Print  |  Notify Moderator

I don't ever recall any sink being plumbed into a black water tank on a rv. Either something else is happening or it plumbed wrong.


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mooky stinks

Cicero,NY

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Posted: 04/05/21 06:51pm Link  |  Quote  |  Print  |  Notify Moderator

I’ve never heard of an outdoor sink being plumbed into the black tank. Not that it can’t be. However I have a gray tank, from the inside kitchen sink, that vents on the side of the camper, right next to my outdoor kitchen that came loose stunk like a black tank. Once I took the cover off and tightened the plastic nut I never smelled it again. Maybe yours has something like that?


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LadyRVer

Florida

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Posted: 04/05/21 06:53pm Link  |  Quote  |  Print  |  Notify Moderator

I would call the mfg, customer service.. have vin ready. Ask if the outside kitchen sink is indeed plumbed to the black tank. I had a Hurricane Class A motorhome and the bathroom sink was plumbed to the black tank. Only model which was done that way. Customer service was my answer. If not that, there is another problem as you know.

Edd505

Elephant Butte, NM

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Posted: 04/05/21 07:10pm Link  |  Quote  |  Print  |  Notify Moderator

Look under the sink for one of these about $15, one way vent, they stuck in t open. [image]


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time2roll

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Posted: 04/05/21 07:13pm Link  |  Quote  |  Print  |  Notify Moderator

I would be looking at putting a regular ball valve on that drain. Open when parked and in use. Otherwise close it.


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CavemanCharlie

Storden,MN

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Posted: 04/05/21 07:17pm Link  |  Quote  |  Print  |  Notify Moderator

cougar28 wrote:

I don't ever recall any sink being plumbed into a black water tank on a rv. Either something else is happening or it plumbed wrong.


My indoor bathroom sink is plumed into my Black Water Tank and I'm glad that it is. It helps to keep the gray tank from getting over full.

blaczero

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Posted: 04/05/21 07:45pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

I would be looking at putting a regular ball valve on that drain. Open when parked and in use. Otherwise close it.


a ball valve on PVC drain? Never seen that.

Bobbo

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Posted: 04/05/21 08:31pm Link  |  Quote  |  Print  |  Notify Moderator

cougar28 wrote:

I don't ever recall any sink being plumbed into a black water tank on a rv. Either something else is happening or it plumbed wrong.

My previous RV had the bathroom sink plumbed into the black tank. I wish my current one did. It made it simple to finish filling the black tank before dumping, just turn on that faucet. I am not aware, however, of an outdoor sink being plumbed into a black tank.

For the OP, are you SURE it is black tank water that you are seeing? Gray tank water can stink just as bad as black tank water.


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