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Old 12-24-2014, 06:25 PM   #1
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Default Gravity dumpers

We have had a macerator the entire time we have had a B, as it came on the Roadtrek. So, we have never had to deal with the "slinky" dump method, and know very little about them.

I am now in the process of collecting the parts to make ours a true dual dump setup with both pump and gravity always available, not just an emergency plug.

IIRC, I have always seen the slinky detached when not in use, and stored somewhere. Is there some inherent reason it needs to be removed, or is because there wouldn't be enough room to compress it into storage tube while hooked up? I could see that being a problem with the long hoses and extensions. We would easily be able to live with 10 feet of hose from the edge of the van, I think, so I am hoping to be able to just compress that into a tube and leave it all hooked up.

Is this beyond the realm of reality? If so, it will require a separate storage area, but that certainly is doable, but not a first choice.
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Old 12-24-2014, 06:34 PM   #2
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Default Re: Gravity dumpers

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Originally Posted by booster
We have had a macerator the entire time we have had a B, as it came on the Roadtrek. So, we have never had to deal with the "slinky" dump method, and know very little about them.

I am now in the process of collecting the parts to make ours a true dual dump setup with both pump and gravity always available, not just an emergency plug.

IIRC, I have always seen the slinky detached when not in use, and stored somewhere. Is there some inherent reason it needs to be removed, or is because there wouldn't be enough room to compress it into storage tube while hooked up? I could see that being a problem with the long hoses and extensions. We would easily be able to live with 10 feet of hose from the edge of the van, I think, so I am hoping to be able to just compress that into a tube and leave it all hooked up.

Is this beyond the realm of reality? If so, it will require a separate storage area, but that certainly is doable, but not a first choice.

supposedly the zion will have the macerator but also an actual dumping port(not clean out port)-at least thats whats listed
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Old 12-24-2014, 06:38 PM   #3
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Default Re: Gravity dumpers

I've been using the Presto-fit brand of hoses because you can easily break them down and fit in the on-board storage tube.

I also carry an extension hose that I store in one of those PVC tubes I bought at Camping World. I mounted this on the back-side of my storage box like so:


So far, having about 15-16' of hose has been enough. 90% of the time, the 5' section is enough, and quite convenient for just using the dump station.
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Old 12-24-2014, 07:28 PM   #4
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Default Re: Gravity dumpers

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I've been using the Presto-fit brand of hoses because you can easily break them down and fit in the on-board storage tube.

I also carry an extension hose that I store in one of those PVC tubes I bought at Camping World. I mounted this on the back-side of my storage box like so:


So far, having about 15-16' of hose has been enough. 90% of the time, the 5' section is enough, and quite convenient for just using the dump station.

Thanks, Wincrasher. Does a usable length of hose stay permanently connected at the on-board storage, or do you always have to attach some length for a storage only area?
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Old 12-24-2014, 08:33 PM   #5
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Default Re: Gravity dumpers

A 5' section will fit in the storage tube in the side of the van. You have to keep an end elbow connector (the part that connects your hose to the dump station) somewhere which is about 4" x 6" hunk of plastic. I keep that in my box. Since it's press-fit, you just pop it together and you are done.
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Old 12-25-2014, 01:22 PM   #6
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Default Re: Gravity dumpers

Pre-macerator equipped Roadtreks might be unique in the B world in having the waste hose permanently connected, ready for use. All the other RV's I've had require that you connect the dump hose when you want to use it.
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Old 12-25-2014, 01:51 PM   #7
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Default Re: Gravity dumpers

For some ideas take a look at "Changing out the Big Blue Hose" on a Roadtrek written by Harvey Tetmeyer.

On Roadtrek Chapter site: http://www.roadtrekchapter.org/tech-inf ... -blue-hose

and on the forum here: http://classbforum.com/phpBB2/viewtopic.php?f=9&t=64 (two additional photos recovered)
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Old 12-25-2014, 02:10 PM   #8
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Default Re: Gravity dumpers

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For some ideas take a look at "Changing out the Big Blue Hose" on a Roadtrek written by Harvey Tetmeyer.

On Roadtrek Chapter site: http://www.roadtrekchapter.org/tech-inf ... -blue-hose

and on the forum here: http://classbforum.com/phpBB2/viewtopic.php?f=9&t=64 (two additional photos recovered)
Thanks Marko, that was exactly what I was looking for. It is interesting that only Roadtrek self stored the hose. The article is for a Dodge, so that must explain the elbow in the system do to different tank locations compared to the Chevy that appear to come straight out of the manifold, by has to hinge down to clear the skirting. I won't be able to get as much tube length as the factory setup because of the need to add a tee to get the dual setup, but the wimpy hose could be used and still get enough length, I would think.

With all the room it looked like there was on that Dodge, adding a macerator for dual would be pretty easy, I think.
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Old 12-25-2014, 05:59 PM   #9
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Default Re: Gravity dumpers

Quote:
Originally Posted by markopolo
Pre-macerator equipped Roadtreks might be unique in the B world in having the waste hose permanently connected, ready for use. All the other RV's I've had require that you connect the dump hose when you want to use it.
The Leisure Travel Vans Free Spirit T1N Sprinters had attached 3" slinky hoses in a self store container. I don't know if the newer models follow through with that idea or not but I would think so. My 2011 Great West Van Legend has a self-store container tube next to the discharge but you had to pull the 3" slinky hose out and attach it. But it was there and hidden out of the way. The Advanced RV is two way. They have a macerator attached but you can uncouple it and attach a 3" slinky to dump the gravity way.
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Old 12-26-2014, 02:47 AM   #10
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Default Re: Gravity dumpers

The Winnebago Travato has a door to stuff a 3" slinky hose in. Only downside of that is that I prefer 3" sewage hoses with a 90 degree elbow on the end, so it can be jammed into the dump station or screwed in. It also prevents the hose from going down the CG's sewage pipe, potentially causing backups.

With a macerator pump, this is a non-issue... the macerator hose takes up significantly less space, and the two donuts fit almost any sewage port out there decently.
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