Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 21-02-2016, 16:48   #46
vjm
Registered User

Join Date: Apr 2009
Location: Florida
Posts: 313
Re: ELI5: How do compost toilets work

Many people don't separate the toilet paper. It just breaks down slower than fecal material and your container will fill up more quickly.
__________________

__________________
vjm is offline   Reply With Quote
Old 21-02-2016, 18:06   #47
Senior Cruiser
 
Minggat's Avatar

Cruisers Forum Supporter

Join Date: Apr 2008
Location: Hawaii, South Pacific bound
Boat: Islander 36
Posts: 1,220
Re: ELI5: How do compost toilets work

I recommend that you abandon the "breakdown" concept just to help you sort out what you're really dealing with. Think dehydrator rather than composter.
There is no negative impact of the TP on the dehydration process. I would have to say that it even aids the process. But you will no longer have a product that you can pass off as compost. Basically you're going to have trash in the batch. It won't be wet, so it won't be "breaking down"
__________________

__________________
Minggat
Minggat is offline   Reply With Quote
Old 21-02-2016, 18:13   #48
Registered User

Join Date: Aug 2014
Location: Groton, CT
Boat: Bristol 29.9
Posts: 236
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by tankersteve View Post
I'm convinced and actuallly have a cardboard mockup of the C-Head in my boat. Once my critical work is done, it is high on my list of upgrades.

However, I have to admit, I was not tracking the need to separate the TP. Does anyone not do this? I understand TP would inhibit just putting the dessicated waste in a flower bed, but if disposed of in other ways, is there any impact in TP going in with the solids? Possibly using camper/RV TP to aid in breakdown? Or is this just something I'll have to adapt to?

Thanks.

Tankersteve
I separate my TP for urine (but I'm a chick), but we put the TP for solids in the bin. It may fill up a bit more quickly, but it's better than the alternative IMO. We use our regular home TP, but we separate the squares so it doesn't get wrapped around the agitator.
__________________
Our blog: http://www.adventuresontheclub.com
Cthoops is offline   Reply With Quote
Old 21-02-2016, 18:22   #49
Registered User
 
daletournier's Avatar

Join Date: Jan 2012
Location: Seychelles
Boat: Catalina 470
Posts: 1,881
Re: ELI5: How do compost toilets work

Hi, is there any smell that comes from the venting fan? I'm assuming fan needs to be somewhere that seawater or rain can't flood in?
Cheers Dale.

Sent from my GT-N7105T using Cruisers Sailing Forum mobile app
__________________
daletournier is offline   Reply With Quote
Old 21-02-2016, 20:50   #50
Registered User

Join Date: Jun 2007
Location: Yorktown, VA
Boat: 1984 Cal 31
Posts: 150
Re: ELI5: How do compost toilets work

Thanks so much to the responses about TP. This just confirmed that a composting - dehydrating - toilet is the future for us on our boat.

Many years ago, while in Iraq, I lived in some Iraqi buildings with toilets that required you to separate the TP. I was not a fan of this and really didn't want to resort to having to do this in my 'home'.

Tankersteve
__________________
tankersteve is offline   Reply With Quote
Old 21-02-2016, 22:00   #51
Senior Cruiser
 
Minggat's Avatar

Cruisers Forum Supporter

Join Date: Apr 2008
Location: Hawaii, South Pacific bound
Boat: Islander 36
Posts: 1,220
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by daletournier View Post
Hi, is there any smell that comes from the venting fan? ....
Vent fan is to aid in removing humidity/ moisture as solids dehydrate. Not for odors. There are no odors once you crank the handle and the solids are covered by the drying media.

Again, the vent and any fan are NOT required in most cases, depending on which unit you choose or how you choose to operate it. Even when I used to deploy the lid to the solids bin, there was no smell. Just a less dry batch.

Believe me folks, the questions that have come up here are results of the same worry and overthinking that I went through. The worst thing that has happened was when a clueless crew emptied the urine in the solids bin. The resulting ammonia smell was taken care of by dumping that batch and starting a new one. The "earthy" smell that some report is very very faint, and hardly offensive. Any issues that you might have will be operator errors of the non-life threatening variety.
__________________
Minggat is offline   Reply With Quote
Old 21-02-2016, 22:03   #52
Registered User

Join Date: Dec 2014
Posts: 591
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by Minggat View Post
I recommend that you abandon the "breakdown" concept just to help you sort out what you're really dealing with. Think dehydrator rather than composter.
There is no negative impact of the TP on the dehydration process. I would have to say that it even aids the process. But you will no longer have a product that you can pass off as compost. Basically you're going to have trash in the batch. It won't be wet, so it won't be "breaking down"
While the rate of decomposition may not be the same, toilet paper is indeed a compostable material. People use newspaper in their gardens all the time for mulch which degrades into compost eventually. Any organic matter can be turned into compost. However some types of fecal matter is not considered a good idea for vegetable gardens, including human . Human waste compost is OK for flower gardens.
__________________
captlloyd is offline   Reply With Quote
Old 21-02-2016, 23:08   #53
Senior Cruiser
 
Minggat's Avatar

Cruisers Forum Supporter

Join Date: Apr 2008
Location: Hawaii, South Pacific bound
Boat: Islander 36
Posts: 1,220
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by captlloyd View Post
While the rate of decomposition may not be the same, toilet paper is indeed a compostable material.
Of course true. That rate of decomposition is the point I was addressing.
Again, TP will not be a negative to the process.
__________________
Minggat is offline   Reply With Quote
Old 23-02-2016, 17:07   #54
Registered User
 
Nicholson58's Avatar

Join Date: Jan 2011
Location: Live aboard
Boat: Camper & Nicholson58 Ketch - ROXY Traverse City, Michigan No.668283
Posts: 3,466
Images: 83
Re: ELI5: How do compost toilets work

I am sure I have posted these before. Our installation of Air Head. Our boat has 3 heads. Two are Vacuflush. One of those is direct out only and the other has an optional holding tank. The forward head had been removed by the PO for a shower & rinse for SCUBA or fishing tackle. We added the Air Head to comply with Great Lakes ZDZ. The original head was on a rise defined by the hull shape. We added a 3/4 inch thick Lexan floor so the throne is a step up. The electric fan vent furnished was not installed. We ran the exhaust to a NICRO vent with solar charger. These have not been reliable for many due to crappy NiCad batteries. The NICROs typically reside on a shelf long enough for the battery to become junk. Replace it with new or Li. A simple plastic plate will make an adapter. The little one-step child's seat/stool is a big help and is useful other places on the boat.

We do not have stinkintheboat. The only problems with operation is when we have had to use dry leaves as compost. These themselves compost rapidly turning the pot into goo. We now buy Coir on line in 40-brick/50 # batches. Should last a while.
Attached Thumbnails
Click image for larger version

Name:	DSCF0347.jpg
Views:	58
Size:	384.6 KB
ID:	119491   Click image for larger version

Name:	SOLAR VENT 1.JPG
Views:	62
Size:	358.4 KB
ID:	119492  

Click image for larger version

Name:	SOLAR VENT 2.jpg
Views:	58
Size:	383.2 KB
ID:	119493   Click image for larger version

Name:	SOLAR VENT 3.jpg
Views:	65
Size:	403.3 KB
ID:	119494  

__________________
Nicholson58 is offline   Reply With Quote
Old 11-03-2016, 00:22   #55
Sponsoring Vendor
 
Schooner Chandlery's Avatar

Community Sponsor

Join Date: Jan 2007
Location: home port Washington DC
Boat: SS Crocker design #131
Posts: 977
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by jcdexter View Post
We've been using an Airhead on Tribute for 6 years. We have the fan and have zero odor. Ours is a two head boat. I've had to rebuild the Raritan which is also 6 years old twice and replace the hoses once because they became completely clogged with salt. The Airhead has required zero maintenence. I wish both my toilets were Airheads. Two Airheads would allow two people to go 60 days without emptying. With the help of Geoff at Airhead, I plumbed the urine container into my holding tank with a simple foot pump. Works great!

We're used our airhead 5 yrs just emptying two urine tanks as needed. We recently installed a whale tiptoe foot pump and plumbed to a holding tank as we're in a marina this year but the pump only worked about week. I've yet to take it apart to figure the problem out. What kind/brand of pump did you use?


Sent from my iPhone using Cruisers Sailing Forum
__________________
"The only noble thing a man can do with money is to build a schooner." Robert Louis Stevenson

Schooner Chandlery is offline   Reply With Quote
Old 11-03-2016, 06:09   #56
Registered User

Join Date: Oct 2010
Location: Mid-Coast Maine
Boat: Brewer 12.8, 42'
Posts: 25
Re: ELI5: How do compost toilets work

We use a Whale Gusher pump. It's only been in a few months but so far so good.
__________________
jcdexter is offline   Reply With Quote
Old 11-03-2016, 06:20   #57
Registered User
 
Ribbit's Avatar

Join Date: Oct 2015
Posts: 655
Re: ELI5: How do compost toilets work

Quote:
Originally Posted by captlloyd View Post

However some types of fecal matter is not considered a good idea for vegetable gardens, including human . Human waste compost is OK for flower gardens.
Not true. The contents of Earth Closets always went onto the compost heap, and then onto the vegetable garden (back then most gardening did not involve flowers). It was perfectly safe.

Most fertiliser used in Eastern Europe even today, is human waste, and they have very good crops.

I have traveled widely around there on my motorbike, and the smell is distinctive.

Heck it is even good fertiliser to pump into the Oceans. That may not be a popular thing to say to the misguided, but it is the truth. Life feeds on it voraciously.

Even where I live, farmers use their slurry tankers to empty septic tanks when needed, and then spray the contents on the fields. Sunlight and aerobic bacteria make short work of it, as they do in the sea (if the fish don't get to it first).
__________________

__________________
Ribbit is offline   Reply With Quote
Reply

Tags
oil

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Compost matters.... s/v 'Faith' Plumbing Systems and Fixtures 10 16-08-2013 18:18
Did you build your own compost toilet? Are you using it successfully on your boat? magentawave Liveaboard's Forum 9 28-06-2013 13:36
Does anyone dig in their compost? Wand Plumbing Systems and Fixtures 35 02-06-2013 04:14
Composting toilets, do they actually work? Orrjames General Sailing Forum 33 19-05-2013 17:30
Electric or Manual? Fountains as Toilets Don't Work! S/V Willow Plumbing Systems and Fixtures 5 11-08-2009 15:03



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.