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Old 05-14-2013, 11:37 PM   #15
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I just put a 4" threaded ABS plug in the tank, and put the composting toilet where the flush-toilet was. I attached the composting vent to the black tank vent. It's not difficult to install.
Thanks, Globie. The 4" plug sounds like a good idea. Was it easy to attach to the black tank vent? Perhaps it's easier to see when I remove the wooden box the existing flush toilet sits.
Where did you get the continuous power source? I think I want to run the composting fan directly off the battery - or some power that stays "on" even when the trailer power switch is on "store". Does that seem right - so the composting toilet always has power even if the trailer is "off"? We keep the batteries charged via a direct-connect solar panel.

Jim
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Old 05-15-2013, 11:30 AM   #16
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Thanks to all who responded.

Any installation and upkeep tips would be helpful. Electrical power is an issue. Our steep lot is such that we can't park the Bambi near our house, though on occasion we have run about 3 big extention cords down to where we park the Bambi by the road. Winter is more problematical, as the Bambi sometimes goes into an RV storage place in town with no power outlet. Our "little guy" has a combined black & gray-water tank.
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Old 05-15-2013, 10:53 PM   #17
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I just put a 4" threaded ABS plug in the tank, and put the composting toilet where the flush-toilet was. I attached the composting vent to the black tank vent. It's not difficult to install.
Where did you find a DC power source for the fan? I'm assuming I'll need to run wire back to the fuse box/block?
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Old 05-16-2013, 01:00 AM   #18
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I have the power to the fan switched, not sure where it comes off of, I had someone do it for me, but I don't think it's that difficult to find where to take power off. The toilet flange just unscrewed from the tank, a standard ABS thread, and in went the plug
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Old 06-19-2013, 06:36 AM   #19
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So how many of you installed your own (DIY) composting toilet?
I expect to remove the wood box my present toilet sits on.
I expect to keep the black water tank.
I expect to connect the composting vent to the black tank vent pipe.

Any suggestions?
We considered a manufactured composting toilet but decided to try a homemade version first...

Since they are essential two receptacles with a urine diverting seat and a 12v fan it seemed simple enough.

After trying to source a quality seat and reading up on the varying opinions of wether to divert the urine or not we went with the single bucket method.

I was skeptical at first but we have used it for over a month with no regrets!

Basically we have a bench in the bathroom with a standard toilet seat and a bucket below. After your done you add peat moss or saw dust to completely cover. No smell, flies, water, power or $$$ in a manufactured toilet!

You can checkout this article for more info: http://www.livinlightly.com/off-grid...osting-toilet/

-NICK
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Old 06-20-2013, 05:52 PM   #20
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Livinlightly-- I love it!

I saw a similar suggestion for a simple indoor potty in a 1970s Mother Earth News. My only somewhat delicate question is how to dispose of the "stuff" while traveling; human waste being considered more like a hazmat than kitchen waste.

I once bought one of those desert camper's human waste disposal bags: the "pack out what you pack in" mandate is taken to the nth degree in sensitive, heavy-use environments. I got this one just for emergency purposes, but then I thought it might work to keep the current Bambi toilet as-is, but without water in the tank; and line it with a sturdy plastic bag, layer it with sawdust or peat moss ( + possibly baking soda or lime) as necessary, and then discretely dispose of it in the CG dumpster after a few uses.

While I think a CG manager would take a dim view of disposing of adult human waste like this, nobody frets about disposable baby diapers in campground dumpsters.

We may go on another longish desert camp-a-thon in National Parks and Recreation Areas next winter, where most of the sites are boondocking only. I keep looking for ways to "economize" on our water, power, and waste systems.
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Old 06-23-2013, 12:03 AM   #21
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Len & Jeanne,

Good question! I'm curious how others dispose of their full composting toilets? Our goal is to make rich soil from it!

We have several buckets that if we fill then we can seal and store until we are at our garden or a discrete place we can burry it.

One of the reasons we chose this method is to have a smaller negative impact on the environment...so sealing it in plastic bag and sending it off to a landfill does not help the environment much.

I would love to hear other folks solutions!
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Old 06-24-2013, 01:17 PM   #22
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In a stationary setting, I would probably designate a special compost pit for the "humanure", layer it as usual, and then use it around trees and shrubs, vs. vegetables growing in the dirt; though off-the-ground veggies like pole beans should be OK.

We will try out the new "system" in a couple of weeks, when a mini-family reunion will put us in the Bambi as our overflow guest accommodations.

I agree, the plastic bags aren't a great environmental solution, but taking sewage home in the back of the truck doesn't seem wonderful, either. The up-side, if this plastic bag/peat moss system works, is that it should really cut down on our water and battery use. We often boondock, including in places with no water on site, so have to run the pump for conventional flushes; and often have to refill the fresh water tank from jerry cans.

There are bio-degradable plastic bags, but I had a couple that I stored too long, and they just turned into handfuls of plastic flakes. Not what we want to deal with on a camping trip.
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Old 07-01-2013, 09:01 PM   #23
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One thing to keep in mind when disposing the compost, if you're using hormone based birth control, the pill, then there will be residue in the compost.

Ideally you won't reintroduce those into the food chain, meaning using it in your veggie garden isn't the best idea.The trees probably won't mind much.
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Old 07-04-2013, 01:34 PM   #24
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Hormones and parasites, maybe not yours but a visitor may introduce something. Sorry to be gross, but it is a thread about composting toilets. I would like to be able to use them where we are, rural area with restrictive septic codes and limited water resources.

I wonder if burying the stuff to compost it, mixed 50/50 with native soil, for a year and then planting in it or using it for compost around plants would do away with the pathogen issue?
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Old 07-05-2013, 12:32 AM   #25
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@Globie64 From what I have read when you compost the waste with the right nitrogen & moisture the residual heat is enough to kill any pathogens. This coupled with waiting at least 6-months to use it gives any potential pathogens plenty of time to die off on their own.

We have placed our first two buckets of waste in a heap mixed with grass clippings and garden debris + water and I am amazed at the heat it puts off. Seems to be working...
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Old 07-05-2013, 12:40 AM   #26
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@Len n Jeanne Would love to hear how it works for you folks!

We have revised our covering to include some cedar bedding chips with the peat moss (at a ratio of about 4 handfuls peat-moss to 1 handful cedar). Plus we put an initial 2-3 inches of cedar chips at the bottom of the bucket before we use it. We have found that the cedar chips help absorb more of the liquid and they have a pleasant smell

Quote:
"but taking sewage home in the back of the truck doesn't seem wonderful, either."
Agreed that hauling raw sewage is not a good idea...that's one reason we don't have a black tank! Full buckets are easy to securely seal, don't smell and they are easy to toss onto the compost heap when we get home. So far so good...
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Old 07-05-2013, 01:14 AM   #27
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Thanks Livinlightly- Im sure there is a way to make this work.
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Old 07-05-2013, 10:17 AM   #28
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Since we need a system for camping trips, not stationary year-round living, we are just now trying out the following system:

Line the drained & dry toilet bowl with a large extra-sturdy plastic bag. Add some peat moss. Layer with peat moss after uses. Carefully tie up waste bag and dispose in garbage. The added absorbent material seems really necessary. TP alone doesn't do it.

So far so good after one night's experiment.

Actually we are home now, but we have a full house with six relatives visiting, so we're in the aluminum annex.
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