Composting toilet and more fresh water? - Fiberglass RV


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Old 03-07-2015, 03:44 PM   #1
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Name: Kelley
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Composting toilet and more fresh water?

I was wondering what some of you Oliver owners think about adding a composting toilet to the Oliver and replacing the black tank with a fresh water tank? Thus increasing the fresh water capacity to 48 gallons. We are planning on fulltiming.
Thanks for any help or suggestions
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Old 03-07-2015, 05:25 PM   #2
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I did take a close look at adding a Nature's Head composting toilet, a tankless water heater, and a 12v compressor refrigerator to an Oliver. Decided against the Nature's Head toilet after talking this over with Robert Partee of Oliver. For the composting toilet you do want to install a vent pipe and it would be best to use 12v to run a small exhaust fan on that vent pipe. Oliver is very careful/concerned with added hull penetrations. Per Robert, their vent pipe for holding tanks is molded into the hull and would be difficult to make connections for the toilet vent. He also brought up the concern of height as the existing toilet sits on a step. With the Nature's Head installed on the step you would sit but your feet would probably dangle. We did not get to the 12v fan issue as the vent pipe connection decided against installation.

I do believe the composting toilet is a very smart idea but probably better suited for a flat floor, dry bath installation. The discussion and videos made by Gone with the Wynns concerning composting toilet usage in their motor homes is very good. They installed one in their old motor home and liked it so well they took it with them when they upgraded to their new motor home.

Composting Toilet
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Old 03-07-2015, 05:31 PM   #3
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Most of those that are full timing wouldn't want to carry 48 gallons (400+ lbs) of water from point to point. Is there a specific need you will know you will have to need that much water?


Ditto for composting toilets, not terrific justification or need in the FGRV world out there.


Unless you be full timing across Africa?
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Old 03-07-2015, 05:49 PM   #4
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Thanks for the info Greg.

Bob we are going to be doing a lot of Boondocking and the extra water would be nice and not concerned about the weight.
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Old 03-07-2015, 06:01 PM   #5
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I am a big fan of the natures head. If the toilet in my egg ever breaks I will move my NH in to it! It is much easer to empty and you don't hVe to empty it as often.


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Old 03-08-2015, 12:24 PM   #6
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Name: Felix47
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I am in a Casita 17 which has a similiar toilet. Comparing the smell and labor of using the black tank and emptying it and dumping it vs. putting a biodegradable liner in the toilet that exists with kitty litter and separating urine with a divider is no comparison. Once dry it does not smell and put a fan in and you can draw anything out. Easier to separate it at the source than later. This black tank mess is like creating artificial diarrhea. Go with the natures head....you can reroute the airflow.....if need be out the window or hook into the outflow already there....it is just plastic pipe.
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Old 03-08-2015, 12:54 PM   #7
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We have a composting toilet at our lake cabin , it is called an outhouse. Simple to use and maintain and only smells when it is warm out , I do not see the issues with using or dumping our trailers black tank. I would rather pull one valve than shovel out the outhouse but to each their own.
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Old 03-08-2015, 01:21 PM   #8
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Just thought it would help extend our Boondocking was the thought process.
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Old 03-08-2015, 02:23 PM   #9
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Quote:
Originally Posted by Masterstilll View Post
Just thought it would help extend our Boondocking was the thought process.

It will!


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Old 03-08-2015, 05:42 PM   #10
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Take a look at this 'composting' toilet to compare it with Natures' Head.

C-Head portable composting toilet system

Technically, neither of them are true composting toilets since they don't finish the job of composting but both are separating toilets.

Personally, after comparing the two, I'm investing in the C-Head for both cost and technical aspects.
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Old 03-08-2015, 06:33 PM   #11
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I would think the standard 18 gallon black tank would get you thru 2 weeks before needing to dump. You can always carry an extra water tank in the bed of your truck if you need more water. You can also get a wheeled tote to dump your black and grey tanks and carry to a dump station.

I think the composting toilet can easily become a big old mess. You still have to dump a pee bucket rather frequently (and somewhere proper). It's a reaction that has to be constantly maintained to work properly. And as some have said, is a constant 12v draw. And you have to carry the peat moss (or similar material) that has to be stored somewhere.
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Old 03-08-2015, 06:40 PM   #12
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Ya... but being "Green" seems to trump costs and all other sensible counter excuses.
If this was a biggie, where is the list of trailer builders offering it, even as an option?
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Old 03-08-2015, 06:41 PM   #13
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What is the size of the gray water tank on the Oliver? That should probably be taken into consideration.
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Old 03-08-2015, 07:03 PM   #14
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The OP wants to remove the black tank and add a second 24 gallon fresh water tank. What part does the grey tank play?


But it doesn't appear that he even has the Oliver yet ?????
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