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07-07-2019, 04:57 PM
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#1
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Mini-Skoolie
Join Date: Jul 2019
Location: Eugene Or
Posts: 33
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swapping traditional rv toilet for composting toilet
Hi
We are in process of finding our first bus. We are looking for a partial or full conversion. We are interested in a partial conversion that has a regular RV toilet(an old one. yuck. ) How big of a project is it going to be to swap that old nasty toilet for a composting toilet?
Thanks!
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07-07-2019, 05:01 PM
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#2
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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Start with a wrench, screwdriver, multiple 5-gallon buckets, long-sleeved rubber gloves, and a full-face respirator.
Easy-peasy!
(Might want a pressurized hose on standby, and clothing-optionally friendly neighbors, too...)
Duct tape over the pre-existent hole, and, as the French are wont to say:
WAA-la!
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-07-2019, 05:03 PM
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#3
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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The last one I did was quite simple.
Unbolt old toilet, disconnect & cap water supply, remove toilet, cover the toilet flange and bolt the new one in place.
I did later plumb the urine diverter to a larger tank outside.
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07-07-2019, 05:19 PM
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#4
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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And getting rid of the prolly less-than- pristine holding tank..?
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-07-2019, 05:32 PM
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#5
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by HazMatt
And getting rid of the prolly less-than- pristine holding tank..?
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Capped it off and left it there......
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07-07-2019, 05:52 PM
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#6
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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Pity the subsequent owner![emoji23]
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-07-2019, 05:55 PM
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#7
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by HazMatt
Pity the subsequent owner![emoji23]
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It was sold with full disclosure of what occurred. Buyer did not have a problem with it.
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07-07-2019, 06:04 PM
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#8
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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I am about to reinforce my love for composting toilets.
Tomorrow I have to replace both of the holding tank valves on my trailer...
THERE WILL BE NO BLACK TANK IN MY BUS!!! Never. No way. No how!
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07-07-2019, 06:08 PM
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#9
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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So...
I'm gonna be guessing that I can't interest you in purchasing the 2nd (utterly unused) black tank I'm thinking of selling..?
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-07-2019, 06:27 PM
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#10
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Bus Crazy
Join Date: Nov 2015
Location: Billings, MT
Posts: 1,269
Year: 2003
Coachwork: Thomas
Chassis: HDX
Engine: Cat C7
Rated Cap: 84 passenger
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The word is VOILA, not waala.
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07-07-2019, 06:45 PM
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#11
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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Yuh...
Quote:
Originally Posted by CaptSquid
The word is VOILA, not waala.
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Was going phonetic for the non-Francophones following along...
However: Mercy B-Cups.
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-07-2019, 07:09 PM
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#12
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by HazMatt
So...
I'm gonna be guessing that I can't interest you in purchasing the 2nd (utterly unused) black tank I'm thinking of selling..?
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Come change these dump valves for me and I'll give it some thought.
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07-07-2019, 08:02 PM
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#13
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Bus Crazy
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
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ummm... No. Thankya.
I'll pass.
Butt, as a professional courtesy, NOT in the installed black tank...
__________________
Those who say that it cannot be done should not interrupt the people doing it.
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07-20-2019, 03:39 PM
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#14
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New Member
Join Date: Jun 2019
Posts: 5
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Funny, I'm going to be doing this soon too! I'll probably just cap any lines. But it's an (hopefully!!!!) empty black tank under the toilet so it should be easy-ish. I've had the trailer 4 years and used it once to pee in while it had running water. It hasn't had running water 98% of the time I've lived in it (I use my parents' house for the bathroom). Then I'm going to use a DIY composting toilet with one of the Johnnycomposting urine diverters.
Good luck! I hope your (toilet ;) ) conversion goes well.
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07-20-2019, 05:37 PM
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#15
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Site Team
Join Date: Apr 2015
Location: Nanaimo, British Columbia
Posts: 429
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I hadn’t seen JohnnyCompost before! Awesome stuff. (And for those looking, it’s an Etsy store selling 3D printed urine diverters and vent accessories...)
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07-21-2019, 01:35 AM
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#16
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Bus Crazy
Join Date: Feb 2018
Location: Golden Valley AZ
Posts: 1,036
Year: 1993
Chassis: ThomasBuilt 30'
Engine: need someone to tell me
Rated Cap: me + 1
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Quote:
Originally Posted by CaptSquid
The word is VOILA, not waala.
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He was speaking American French
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07-21-2019, 02:10 AM
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#17
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Bus Geek
Join Date: Sep 2018
Posts: 2,831
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
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People make such a big deal out of poop. I’ve done plumbing for years. It’s not bad. Though I do favor full face masks nowadays.
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07-21-2019, 09:37 AM
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#18
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Almost There
Join Date: Jan 2015
Posts: 80
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I use and Airhead now after running one on the boat. Never looked back and on my third install now. I removed the black tank and installed a new tank for grey water I can drain on either side. I was lucky to have a city sewer hook up at the shop so it was a couple of flushes of the black tank with some sulfuric acid to clear out the organics and it went to the dump after cleaning it. Biggest issue is disposal of the black tank responsibly. You should make an effort to clean it out.
I saw no point in keeping the black tank on board and it made sense to have a grey water tank in its place. I installed a float switch in the grey tank that tells me when its about two thirds full. Only issue with the composting toilet is to make sure you have room to service it when installed. Maintenance is a breeze then.
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