Trailer Life Magazine Open Roads Forum: Gray Water Tank Plumbing Info
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 > Gray Water Tank Plumbing Info

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ksg5000

Oregon

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Posted: 10/11/18 11:32am Link  |  Quote  |  Print  |  Notify Moderator

Looks like I may have leak on the top of my gray water tank ... likely at the junction where it connects to rig. Haven't a clue what kind of connection that is or how to fix.

I discovered this when I had a bad sensor and decided to fill the gray water tank with dawn and take it for a ride ... but my driveway is "steep" and it's obvious that I left a trail going up the driveway.

Is the connection to the rig a rubber gasket which may have dried out or something more complicated? If it's a gasket I can drop the tank and replace ... but I haven't found much on the internet which describes exactly how the darn thing connects to the rig.

Any help appreciated.

Kevin


Kevin

drsteve

Michigan

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Posted: 10/11/18 06:21pm Link  |  Quote  |  Print  |  Notify Moderator

What kind of RV do you have?


2006 Silverado 1500HD Crew Cab 2WD 6.0L 3.73 8600 GVWR
2018 Coachmen Catalina Legacy Edition 223RBS
1991 Palomino Filly PUP

mosseater

Dillsburg, PA

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Posted: 10/11/18 08:14pm Link  |  Quote  |  Print  |  Notify Moderator

If you have an enclosed underbelly, you'll likely have to take down the plastic to get an eyeball on it. Check out your tank mounting system while you're under there. Many are chinzy. Mine was nothing more than a piece of 7/16" OSB board stuck between two floor joists. And it was half rotted from condensation. I replaced the support with a piece of 5/8" plywood with plastic spacers and weep holes drilled in for ventilation. Also added a few pieces of banding strap under the plywood for extra strength. Now the full water tank doesn't sag anymore.


"It`s not important that you know all the answers, it`s only important to know where to get all the answers" Arone Kleamyck
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ksg5000

Oregon

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Posted: 10/12/18 10:10am Link  |  Quote  |  Print  |  Notify Moderator

The rig is 92 Fleetwood Class C. No underbelly and the tanks are exposed - they appear to be held in place with straps. The connection between the rig/tank is at the top of the tank (can't see). Was hoping someone could tell me how the tank connects to the rig. Lots of post saying that if your gray water tank is overfilled it comes up in the shower ... but mine apparently spills on the ground.

Any help appreciated.

mosseater

Dillsburg, PA

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Posted: 10/12/18 05:51pm Link  |  Quote  |  Print  |  Notify Moderator

As far as I know it should be a sealed system between the drains and the tank. Only thing open to atmosphere should be the vent pipe out the roof. I really don't know what the connection to the top of the tank looks like. The tank is polypropylene I think, and the pipe is ABS or PVC. As far as I know they can't be joined with glue so probably a coupler of some description. Doesn't sound like fun to get to. Post pics if you figure it out. Sorry I can't be more help.

drsteve

Michigan

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Posted: 10/12/18 07:33pm Link  |  Quote  |  Print  |  Notify Moderator

Here's a Youtube vid showing how to drop a holding tank.

Clicky

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