A composting toilet can turn a familiar RV problem into a manageable routine, especially on long road trips, remote camps, or routes where hookups sit far apart. The right setup depends on how much space you have, whether electricity is available, and how you prefer to handle liquid and solid waste. These six options cover self-contained, tube-drained, manual, and temporary approaches.
The Shortlist At A Glance
Separett Villa Toilet
Separett Tiny Toilet
Separett Tiny Tube Toilet
Ann Katy 5-Gallon Toilet Bags
Separett Weekend Toilet
Separett Uno Toilet
Taking A Closer Look At The Options
Space and usage frequency set the Villa apart from the compact Separett models later in this roundup. Its roomier construction suits an RV, cabin, or remote property where you want more room between emptying tasks, although the larger footprint still needs a dedicated place in your setup.
Urine-diverting technology sends liquid waste into a separate stream from solid waste, reducing the amount of liquid entering the compost chamber without requiring additives or mixing. For regular off-grid users, that separation offers a more considered waste system than a temporary portable toilet.
Where It Excels
- The spacious design supports longer periods between emptying tasks.
- No water or plumbing connection is required.
- Separating urine from solid waste keeps the compost chamber focused on solid material.
- The one-piece construction suits permanent residential or remote installations.
Things To Consider
- Its larger construction takes more room than the Tiny models.
- You still need a practical plan for emptying and handling the separated waste.
Key Specs
Built With In Mind
This model fits RV households, cabins, and remote homes that value capacity and a permanent off-grid bathroom.
Another Choice May Suit
Travelers with very limited floor space may prefer the more compact Separett Tiny Toilet.
The Tiny takes a different approach from the roomier Separett Villa Toilet, concentrating on a compact footprint for RVs, boats, tiny homes, and off-grid cabins. That makes it a more natural fit when every square inch of floor space matters, particularly in a small travel trailer.
This self-contained model separates urine from solid waste and collects the liquid in a removable container. A built-in ventilation fan handles moisture and odor control, while the waterless design eliminates the need for a connected waste or water system.
Notable Gains
- The self-contained arrangement keeps liquid collection under the toilet’s footprint.
- Its compact body suits smaller RVs, boats, and cabins.
- The built-in fan supports ventilation without requiring plumbing.
- Removable liquid collection makes the separation process easier to understand.
Practical Considerations
- The removable liquid container still requires regular emptying.
- You should confirm that the ventilation arrangement suits your available power and installation space.
Quick Facts
Right Fit For
Small-space travelers and marine or cabin users gain the most from this compact, self-contained design.
Look Elsewhere When
Owners with an external drainage setup may prefer the Separett Tiny Tube Toilet.
Routing liquid waste through a tube gives the Tiny Tube Toilet more installation flexibility than the self-contained Separett Tiny Toilet. Instead of keeping liquid in a removable internal container, this version directs it toward an external greywater system or holding tank.
That arrangement can reduce the need to carry a separate liquid container, making the unit relevant for RVs with a compatible drainage setup. The body remains compact, waterless, and equipped with a ventilation fan for odor and moisture control.
The Helpful Details
- Direct urine drainage offers a practical connection to an external holding tank.
- The compact toilet body preserves space in a small RV bathroom.
- You do not need a water supply for operation.
Points To Keep In Mind
- Your RV needs a compatible external drainage or holding arrangement.
- The tube version offers less freedom than the self-contained Tiny Toilet for completely standalone setups.
Feature Snapshot
Made For
RV travelers with a compatible external drainage system get a space-conscious toilet with direct liquid routing.
Consider Something Else When
Campers without an external liquid system may prefer the self-contained Separett Tiny Toilet.
The Ann Katy package is not a composting toilet, so it sits outside the permanent RV setup category in a useful way. It gives campers and hikers a portable waste-management kit for trips where carrying a fixed toilet would take up too much room.
The set includes toilet gel and 30 drawstring bags. Each bag measures 60 by 65 centimeters, a size intended to fit a range of portable toilets, so you can pair the consumables with an existing camping toilet rather than adding another large fixture.
Reasons It Performs
- Thirty bags give you a useful stock for repeated camping or hiking trips.
- The drawstring design makes the bags straightforward to gather after use.
- The gel accompanies the bags for a more complete portable hygiene kit.
Where It May Fall Short
- You still need a separate portable toilet to use the bags.
- This is a temporary waste-containment system rather than a permanent RV bathroom fixture.
Made For In Mind
Weekend campers, hikers, and travelers with an existing portable toilet benefit most from this supply pack.
A Better Fit Elsewhere
Full-time RV travelers seeking a built-in fixture should choose the Separett Villa Toilet instead.
Electricity disappears from the decision when you choose the Separett Weekend Toilet. Designed around a fully manual approach, it suits camps, wilderness cabins, and shelters where water, sewage, and power are unavailable.
Unlike the Tiny Tube Toilet, it does not rely on a powered fan. It also uses an internal container to separate liquid from solid waste, bringing a more structured waste process to a setup that may have very few amenities.
Features That Help
- No electricity is required for operation.
- Manual operation removes dependence on utility connections.
- Internal urine separation keeps liquid waste out of the solid compost chamber.
- The familiar Tiny frame provides a practical foundation for remote installations.
Trade Offs
- Manual operation places more responsibility on you during waste handling.
- You still need a suitable waste-management plan away from an established campground.
Technical Highlights
Who Will Love This
Off-grid campers and cabin occupants gain the most from a manual toilet that needs no utilities.
Reach For A Different Pick When
Travelers who prefer a built-in fan and self-contained liquid storage should choose the Separett Tiny Toilet.
The Uno trades separation for portability, collecting liquid and solid waste together in a single 9.5-gallon container. That simpler arrangement suits occasional use in a van, cabin, workshop, or campsite where you want a toilet without a permanent installation.
You need no water, electricity, plumbing, ventilation, or fixed connection to operate it. The trade-off is a less specialized waste system than the separating Separett models, with all waste routed into one container that must be removed and handled later.
Useful Highlights
- One combined container simplifies the collection process.
- The toilet needs no water or electrical connection.
- Its portable form works for occasional or changing locations.
- No fixed installation is required.
Minor Gripes
- Combining both waste types suits occasional use better than frequent separation-based setups.
- The 9.5-gallon container needs suitable storage space during use.
Whose Shelf It Belongs On
Casual travelers, van owners, and people needing a temporary toilet benefit from its portable, combined-waste design.
Swap It Out When
Regular RV households that want urine separated from solid waste may prefer the Separett Villa Toilet.
What Matters Before You Choose An RV Composting Toilet
Space And Installation Layout
Start with the footprint your RV can spare. The Separett Tiny Toilet favors compact interiors, while the Separett Villa Toilet offers a more spacious construction for regular use. Measure the floor area, access route, and nearby service connections before selecting a model.
Liquid Waste Strategy
Urine-separating systems require a clear plan for where liquid waste goes. The Separett Tiny Toilet stores it in a removable container, the Tiny Tube Toilet directs it to an external system, and the Separett Weekend Toilet uses an internal container.
Power And Ventilation Needs
Power availability can narrow the field quickly. The Tiny models include a ventilation fan, whereas the Separett Weekend Toilet operates manually without electricity. The Separett Uno uses a combined container and needs no powered ventilation.
Frequency Of Use
Occasional road trips and campsite stays may suit the portable Separett Uno Toilet or the Ann Katy bag system. Full-time RV living generally calls for a dedicated fixture with more capacity, making the Villa more relevant than temporary containment supplies.
Common RV Toilet Buying Traps
Mistakes Worth Dodging
Do not judge by capacity alone, since the Separett Uno Toilet and Separett Villa Toilet serve very different usage patterns. Check floor space, power requirements, and liquid-waste routing together. A system that suits occasional trips may be poorly matched to a full-time RV household.
When Paying More Pays Off
A larger model can be worthwhile when you need more room between emptying tasks or a permanent installation. You gain useful capacity, but also take on a larger footprint and more involved waste management. The upgrade helps only when your usage pattern supports it.
Frequently Asked Questions
Do Composting Toilets For RVs Need Water?
Most models in this roundup operate without water. The Separett Villa, Tiny, Weekend Prime, and Uno models all use waterless operation, so you do not need a connected water supply for normal use.
Which Option Is Smallest For An RV?
The Separett Tiny Toilet and Separett Tiny Tube Toilet are designed around compact spaces. Your final fit depends on the available floor area, nearby connections, and whether you prefer internal liquid collection or tube drainage.
Do These Toilets Work Without Electricity?
The Separett Weekend Toilet and Separett Uno Toilet operate without electricity. The Tiny models include a built-in ventilation fan, so you should confirm that your RV has a suitable power arrangement.
What Is The Difference Between Separating And Non-Separating Toilets?
Separating models route liquid and solid waste into different parts of the system. The Separett Uno Toilet collects both together in one 9.5-gallon container, which simplifies handling but offers less separation.
Can I Use A Camping Toilet Kit Inside An RV?
You can use the Ann Katy 5-Gallon Toilet Bags with a compatible portable toilet, but they are not a built-in RV fixture. Full-time RV households usually gain more from a dedicated composting toilet designed for their available space and waste system.
Final Verdict
Your decision comes down to space, utilities, and waste strategy. The Villa serves regular users needing capacity, the Tiny models handle limited space, and the Weekend Prime suits remote sites without power. For occasional use, the Uno or Ann Katy bag system offers a simpler path. Match the toilet to the way you actually travel.