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Do not live in van full time. I use a Dometic # 972 with the mounting clips to fix it in place. Do not understand why a cassette toilet is any different. Both require taking the container out to dump it.

Being male, it is easy to separate the #1 from the #2. Just use a old Quik powdered chocolate container for # 1. Pour a small amount of Clorox in container to eliminate the smell. Much easier to carry the Quik container to dump it than a part of a toilet.

Shower | Orton Travel Transit (ortontransit.info)
To me the difference between a cassette toilet and a pota poti is that to empty a pota poti ( like mine), you have to take the top half off, which is the bowl and seat and sometimes a fresh water tank and set it aside to get at the holding tank and take that some place and dump it. In what I call a cassette toilet you open a door and the holding take slides out and you take that someplace to dump it, no moving or disconnecting the bowl, like the Winnebago Revel.

But if you go on amazon and search on cassette toilets a lot of what I would call "pota potis" are listed, which has confused me.
 
Here is a new composting toilet coming to market called Cuddy. It is an Indiegogo project that has already been fully funded. Current purchase level is $600. Designer was not happy with existing solutions he was using in his van so used Covid year to design a better one to address all the issues. If your into taking a small risk and are OK with delayed delivery (Delays are common with these projects in my experience) than give it a look. They just met stretch funding goal and are now making it water resistant so it can stay in a wet bath during showers. Cuddy, the best portable composting toilet
 
Here is a new composting toilet coming to market called Cuddy. It is an Indiegogo project that has already been fully funded. Current purchase level is $600. Designer was not happy with existing solutions he was using in his van so used Covid year to design a better one to address all the issues. If your into taking a small risk and are OK with delayed delivery (Delays are common with these projects in my experience) than give it a look. They just met stretch funding goal and are now making it water resistant so it can stay in a wet bath during showers. Cuddy, the best portable composting toilet
I actually gave them a few bucks early on... but abandoned it. Hard to beat the split #1/#2 program versus the best-case situation on the composting setups.
 
I second the Wrappon toilet, dry flush. The op said cost was no issue. Hermetically sealed biodegradable five layer bag delivered after each use which can be tossed in the trash like a dipper. No tanks, no smells, but it does run over a dollar per use. Seems that it wouldn't be best for full-time van / camper living but might be ideal answer for op's parents for there sports travels. cheers, bob
 
Other than it taking forever to be delivered and getting piss poor communication about the delays from the company we have been pretty happy with our Dry Flush. I wouldn't recommend it for full timing or for campers who are comfortable with nature, but for my partner who has some medical challenges that make it uncomfortable for her to use most camping toilet solutions its been great. We do add a dose of poo powder when we use it because it seems to handle semi solids better than liquids. It is pricy "per flush" but disposing of the liner is super simple.
 
I’ve used Thetford porta potties for years in both my boats and my van. Recommend them highly, couldn’t be simpler. Empty them into any toilet. If I were doing a major van buildout, I would consider installing a cassette toilet, just to make the removal of the tank a slight bit easier - and outside of the van. But one of the things I like about the porta potty is its versatility. I can put it anywhere in the van that happens to fit. I keep it in a low blue Rubbermaid tub with the potty accoutrement (tp, etc.) that is easily tied down. As to contents, we only let #1 in there. #2 goes into a wag bag if there’s no other option nearby.
 
We spent the big bucks on a Nature's Head composting toilet. It's definitely functional as-is, but despite several good reviews from various people on this forum and YouTube, I'm a little underwhelmed as it relates to the dollars we spent. There are some design issues that aren't particularly impressive (e.g. not being able to empty the pee bottle without completely opening the toilet).

EDIT: Ours also smells, despite cleaning it thoroughly with bleach water after a couple weeks of use. It's like it's embedded in the plastic. Our next step is to clean again with bleach water, but this time with a much higher concentration.

If I were buying again, I'd go with a different manufacturer.

Craig
We’ve used our nature head for about a year now with no smell. What dirt of compost do you use? Is it properly vented?
 
Good write-up/tips. I'll give some of these a try with our Nature's Head.
Look at the Air Head, a few more dollars but several big advantages over Natures Head. I'm going with a Thetford Porta Poti...if you have to empty anything, save $800 for something else and empty the whole thing...no big deal
 
I like as I call them “sh*t baggers”. I put a Laveo dry flush in my last van and was unimpressed with mostly the customer service. I’m putting the wrappon green toilet in the sprinter I’m building now and it’s a great product.
 
We installed a Thetford Cassette in our first build and loved it. In this build we are using the Thetford Curve because of space restraints. The Curve is nice and tall and very comfortable but if I had more room I would install the cassette again. It is a little easier to empty than the Curve but both work great.
 
Since you said cost is not an issue, why not an incinerating toilet? You only have to empty the ashes. I don't have any experience with this in real life, but it's my dream setup. There are some that run on electricity, and some that run on propane. My ideal setup is running it on electricity so I don't have to fill up propane, but it means even higher cost. I'd upgrade the van with the highest amp alternator I can find, and install massive solar on the roof, and massive lithium battery bank.

Cinderella Comfort - runs on 240v electricity, uses about 2,000 watts per flush. Cannot find any reviews for this toilet.

Cinderella Travel - runs on propane, and needs 12v for the control panel. It's not available in the US though. Have to buy from Europe. Cannot find any reviews for this toilet.

Cinderella Gas - runs on propane, and needs 12v for the control panel. It's larger and heavier than the travel size above. This one is available in the US. Cannot find any reviews for this toilet.

Incinolet - runs on 120v electricity, uses about 2,000 watts per flush. Good reviews on YouTube.

EcoJogn TinyJohn - runs on propane, and needs 12v electricity for the control panel. Mixed reviews on YouTube.
 
We spent the big bucks on a Nature's Head composting toilet. It's definitely functional as-is, but despite several good reviews from various people on this forum and YouTube, I'm a little underwhelmed as it relates to the dollars we spent. There are some design issues that aren't particularly impressive (e.g. not being able to empty the pee bottle without completely opening the toilet).

EDIT: Ours also smells, despite cleaning it thoroughly with bleach water after a couple weeks of use. It's like it's embedded in the plastic. Our next step is to clean again with bleach water, but this time with a much higher concentration.

If I were buying again, I'd go with a different manufacturer.

Craig
 
We’ve used our nature head for about a year now with no smell. What dirt of compost do you use? Is it properly vented?
We've used the Nature head for 2+ years with no smell (we use peat moss) and we spray the urine hole/area with vinegar on occasion! My only issue is, why didn't they make the seat comfier, I would think for the $$ they would have thought of that:unsure::D
 
Regardless of cost and if space was not a huge concern what do you think would be the most convenient toilet to use and maintain? My parents are considering a van conversion to go around when they travel to watch their grandkids at sport.
I am going with a Laveo toilet. Don't see it mentioned very much, it is a totally different technology. I am still doing my conversion so can't report on it yet. But the whole dump the urine, stinky toilet thing is not my cup of tea.. You are being redirected...
 
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