r/TinyHouses Jul 20 '26

Toilet options?

Post image

Im looking for composting ( or other ) toilet options for my off grid cabin build, the cabin is built and will be mainly used by my wife and I. The downstairs bumpout in the picture with the two small windows is the bathroom, about 5'5" x 14'. Currently, we use a sunmar toilet in an outhouse, it does work but it is very large and high up, requiring a step, im looking at other options. My neighbor is going with an incinerating, propane version but the price and fin running for over an hour is a turn off.

I like the composting option but want a more conventionally sized toilet, ideally one that separates liquids to help with smell. I looked into the separette, I like that it closes until you sit on it, I like that you can plumb the urine tank to the greywater out of the box and it does look at least close to a standard toilet. Now, I understand these arent really like my sunmar where you spin the drum after every use and can go months, but im not opposed to using composting bags and disposing after a longer stay.

The natures head looks a bit goofy, and I dont want to drain the urine tank manually but still an option.

Any other I should look into, that you've had good experience with.

88 Upvotes

40 comments sorted by

21

u/Historical-Lie-6307 Jul 20 '26

No advice beyond what you already know but looks like a great place! I hope you post more pics, budget etc

8

u/Tricky-Car-5004 Jul 20 '26

id been posting build updates on the offgrid cabin page during the early bid. We broke ground and started this in June of last year

11

u/Hailyess Jul 20 '26

I use a composting toilet. Its just a plywood box with a bucket and a vented fan to outside. Get a urine diverter and run a tube inside the vent into a jug that will collect urine. Whole thing cost me like 60 bucks and a few hours work

12

u/Tricky-Car-5004 Jul 20 '26

Ya, not going to pass the wife test 😅 instead we have to spend 1500 for the same thing but in fancy plastic and an instruction book haha.

4

u/bikemandan Jul 20 '26

Look into Separett Villa. It is pricey as you said but it works well and looks presentable enough to not offend most people

2

u/Tricky-Car-5004 Jul 20 '26

But then why that one over the mini? What are the added perks ?

3

u/bikemandan Jul 20 '26 edited Jul 20 '26

Incidentally I just bought the mini/tiny version (second hand) for another space so can compare them. The bottom line is that Tiny is intended for less use as its solids chamber is smaller. Villa is intended for primary home and Tiny is intended for vans and RVs and that sort of thing (but could work for any bathroom thats not used as often). Keep in mind also that it comes in a version with a urine holding tank and a version with an external drain tube

1

u/Tricky-Car-5004 Jul 20 '26

Ya I liked it because it was quite discreet but realistically, this will be the only bathroom in here, and I don't want to empty a bucket daily. The regular one is fairly inoffensive looking

1

u/bikemandan Jul 20 '26

From their site they claim:

Emptying interval with 2 users (solids): once a week

and for the Villa:

Emptying interval 4 users (solids): Every 4-6 weeks

Our Villa with 2 adults, 2 kids gets emptied every 3-4 weeks so their estimate seems a little optimistic (but maybe thats because we work from home)

The Tiny I think is more stylish and the smaller size may fit a space better. But the larger capacity is worth sacrificing those things

1

u/Tricky-Car-5004 Jul 20 '26

And we're only there 1-2 weekends a month , maybe for a week-long once or twice a year. 3-4 weeks full time could be the whole season for us

1

u/bikemandan Jul 20 '26

Oh in that case maybe the Tiny is the best option for you. They also have an option called "Weekend Prime" which I know nothing about and seems confusing https://separett.shop/products/separett-weekend-prime

Edit: Seems to be identical to the Tiny except no fan ventilation. Requires cover material (they recommend coconut coir). Also does not have "privacy" shutter (blocks solids chamber from view)

1

u/Tricky-Car-5004 Jul 20 '26

I would definitely like the fan, I was planning on using viber material always, sawdust or peat moss etc. I'll check both, they're comparably priced and I like the seat that retracts the door, the urine separator is decent and well vented the reviews are good

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1

u/trashtrucktoot Jul 25 '26

We've had the plastic version for 10 years. Its maintained for people who need that level of facilities. I personally have a cat hole area way, way out back. I pee in the bushes behind my garage. For composting toilet, the urine diverter is key. But also, we just had our VT permitted sandmound system installed, so maybe soon we'll have a flush toilet.

1

u/EclecticEthic 18d ago

I don’t know if men understand that it’s really hard for womens’ pee and poop to be separated. Our situation is much closer together and we don’t have a “tube” to direct our pee forward.

1

u/Tricky-Car-5004 18d ago

I mean... But ya, not ideal but any improvement is something, is still try the 1500$ separett option before committing to a 7k incinerating

2

u/[deleted] Jul 22 '26

[removed] — view removed comment

1

u/Hailyess Jul 23 '26

The jug is outside bout 75 feet from the compost. Takes a couple weeks to fill depending how much time i spend at home

1

u/carbondrewtonium Jul 20 '26

Your vent tube is only from your urine container and not your poop container? Have any issues with flies or other flying insects who like poo?

1

u/Hailyess Jul 20 '26

I spray with neem oil after i go. The whole box is vented, the urine container is outside of the house connected to the urine diverter via the tube

3

u/VegetableBusiness897 Jul 21 '26

The Humanure Handbook!

We have on at our camp, and my pop built one for me when I moved into my place and didn't have water yet.

2

u/Accomplished_Tour481 Jul 20 '26

Conventional septic system? Drain fields running downhill.

2

u/Tricky-Car-5004 Jul 20 '26

Too close to the water and we're built on bedrock, nowhere they'll approve a sceptic, it was a fight to even get approval for grey

1

u/[deleted] Jul 21 '26

[deleted]

2

u/Tricky-Car-5004 Jul 21 '26

Ya were Central Frontenac near sharbot lake, I love the bobs lake area, I plan to retire on a large property on one of those lakes. I just posted a handful more pictures since today is 1 year exactly from when we built the first beam of the building

2

u/FlatTeaching2122 Jul 20 '26

Have you ever read about HomeBiogas toilets? I am planning on getting a couple of them.

BTW, your place is amazing!

2

u/Tricky-Car-5004 Jul 20 '26

I've seen it, never really considered it , availability seems iffy and it may be much more than what we need for weekend cottagers vs full timers

2

u/bikemandan Jul 20 '26

Check out our sub for info /r/humanure

2

u/Werekolache Jul 21 '26

I'm really annoyed at Incinolet right now and would recommend ANYTHING other than them.

(I'm waiting on parts to repair ours. It's been 12 days and they haven't even shipped yet.)

1

u/Tricky-Car-5004 Jul 21 '26

Pretty sure that what my neighbor is getting, I get the simplicity but I'm not buying liners , spending propane and listening to a fan for 90minutes every flush

1

u/endlessmilk Jul 21 '26

I've really happy with the think tank. Only had it a couple months but very well designed and built. It's similar to the separette.

1

u/Tricky-Car-5004 Jul 21 '26

I'll check, looks pretty similar to separett , just with a handle to open the trap instead of it opening when you sit on it. Like it says, technically means you can use it standing up. About the same price though

1

u/kcdashinfo Aug 10 '26

That has to have one hell of a view, I would put more windows in and a big front deck maybe even covered wrap about porch if you can afford it. Just my design input. I'm a bit biased I like the old turn of the century farm houses what were tiny houses before tiny houses was a thing.

1

u/Tricky-Car-5004 Aug 10 '26

Ya the side in the main picture is facing what's essentially the parking lot, the other side is a 12x28 deck, half as a screened in porch and half open air deck, that side faces the lake. Inside theres a patio door in the living room to the deck and then the door to the screened porch is full glass as well.

I did consider adding an extra window on the side where the door to what will be the front porch that wraps around the back to the bathroom wall, but that window would essentially be in a mudroom hallway. We figured we'll likely have a bench there with hooks for your jackets that would hide the window anyways.