RV Web Network is reader-supported. When you purchase through our links, we may earn a commission. Learn more

The Best Composting Toilets for RV – Ideal for RV Owners

Written by Stephen Ryan / Fact checked by William Turner

If you’re looking to buy the best composting toilet for RV, this article has you covered. It’ll walk you through the entire process to ensure everyone makes a smart buying decision. This guidance will consist of discussing several relevant topics about these devices.

Some of these topics include the RV composting toilet pros and cons, determining buying factors, types, and much more. These discussions will highlight what the top-rated RV composting toilet will feature and offer a rig owner. It should make picking a perfect one a stress-free and straightforward task.

best composting toilet for rv

I’ll also provide 7 product reviews of my favorite products. Each of these options has proven to be a top-tier product capable of meeting a rig owner’s needs. If one of these didn’t end up being your choice, I’d be rather shocked.

But if you don’t choose one of these seven, the following discussions should remain more than helpful. Each of them will offer unique insight into the process and ensure you become something of an RV composting toilet expert.

Let’s not waste any more time and get this process started. It’s time to find the perfect composting toilet capable of making your rig a bit more environmentally friendly. Who says we can’t save the planet one toilet at a time?

Top 1



Jump to Review

Top 2



Jump to Review

Top 3

Bingfu BFN00544 


Jump to Review

Table of Contents

4 Best RV Composting Toilet Reviews 2023

As mentioned previously, I’ll provide seven product reviews of top-tier RV composting toilets. These discussions will be a useful starting point for your search. In other words, these products should be the baseline for what to expect from a top-tier motorhome composting toilet.

1. Nature’s Head RV Self Contained Composting Toilet

If you’re looking for one of the more innovative models available, Nature’s Head RV Self Contained Composting Toilet would be an appropriate option. The innovative design has earned it a reputation for being a truly reliable and durable model.

This durability comes from its manufacturer, building it to tolerate a harsh marine environment. As a result, it shouldn’t have any issues handling an RV setting. The hardware made from stainless steel also contributes to its durability.

Rig owners will love this self-contained composting toilet for its overall convenience when it comes to the dumping process. This model can disassemble in a matter of seconds. This aspect will make sure the entire task goes much smoother.

I was also thrilled to see how well it did, keeping my bathroom odor-free. The device can offer this benefit because it has a low volume fan embedded inside the toilet’s head. It’ll recycle the air inside your RV bathroom and keep everything odor-free.

The toilet seat’s comfortability was another thing that caught my attention. I was thrilled by how much comfort came from this product’s elongated seat. It’s something most RV composting toilets don’t offer and makes for a much more pleasant bathroom experience.

This Nature’s Head composting toilet offers a great deal of versatility, as well. People have found this model useful in RVs, campers, yurts, workshops, cabins, and anywhere else one of these devices might be needed.

However, a few of these RV composting toilet reviews mentioned an issue with functioning in tropical climates. I didn’t find this issue a problem when using it, but it’s still something to keep in mind.

  • Durable construction with stainless steel hardware
  • Simple to disassemble for easy dumping
  • Features a low volume fan inside the toilet’s head to dissipate odor effectively
  • Comfortable elongated toilet seat
  • Capable of working in several situations: campers, RVs, yurts, cabins, etc.
  • Some customers reported usage issues in tropical climates
Overall, the tropical climate performance issues seem a little overblown to me. It shouldn’t be something to make you wary of purchasing this Nature’s Head composting toilet. The product shouldn’t have any problems meeting all your expectations.

2. Separett Villa 9215 AC/DC RV Composting Toilet

Separett’s Villa 9215 AC/DC RV Composting Toilet is one of the top-rated waterless toilets for RV use money can buy. Its long list of outstanding features would make any rig owner’s life much more comfortable. One of them has to be its breathtaking versatility.

This versatility comes from its capability of being run on either DC or AC power. As a result, this camper composting toilet can be useful in several situations. You won’t find many other models with its adaptability available for RV usage.

I also found this product’s lightweight 34-pound design appealing. This amount of weight should make transporting and installing it much more comfortable than competing options. Other buyers seemed only to confirm my belief as multiple reviews stated how easy it was to move.

The installation process itself isn’t anything to overlook, either. It was another aspect that received rave reviews from its users. I even found setting up the product wasn’t difficult, which is rather shocking and a good omen for anyone reading this article.

Rig owners should find the device’s single-speed fan intriguing, as well. It’s an impressive aspect because it can ensure your bathroom remains odor-free. After all, it can vent up to 20 feet without issue and make sure your rig doesn’t become a stinky metal coffin.

Its overall durability is a crucial benefit, too, because it was made from high-impact materials. This type of construction shouldn’t have any trouble remaining usable for a long time. Anyone who buys this model should expect and receive long-lasting performance.

But the price is a bit higher than I’d like to spend on an RV composting toilet. It’s easily among the most costly on our entire list.

  • Can work with either AC or DC power
  • Lightweight 34-pound design
  • Effortless installation process
  • Single-speed fan with 20 feet venting capabilities
  • Made with high-impact, durable materials
  • Costs more than other standard toilets
Aside from its price tag, there isn’t a single flaw worth mentioning about this device. Its performance quality is more than worth the high price tag. I don’t see why this model wouldn’t be a top choice if you can afford it.

3. OGO White Self-Contained Composting Toilet for RVs

The OGO Compost Toilet for RVs is an excellent alternative to the Air Head composting toilet. It is a self-contained unit that effectively manages human feces, urine, and other bodily wastes, requiring less frequent emptying than other brands.

Perfect for travel trailers and motorhomes, this composting toilet has various features to enhance users’ experience and make waste management more convenient.

Its electric agitator can mix fecal matter with a composting medium. Never again will I worry about having to operate a hand crank to churn the organic matter in the composting chamber. This is certainly welcome news for RV owners who want optimum convenience in compost management.

Connected to a 12-volt RV system, this composting toilet electric unit also features a liquid level indicator. This element particularly stands out to me because it saves me from constantly wondering if the urine bottle is full.

Unlike other composting toilets, this compact commode has two compartments for urine and feces (solid waste). I am glad the liquid chamber can hold 2.4 gallons of fluid, while the solid bin is enough for at least 25 pooping trips.

There is an ingenious trapdoor mechanism for separating solid waste from fluid. It means I don’t have to empty the urine bottle at the same time.

I am also impressed with this composting toilet’s construction, featuring high-density polyethylene and premium-quality polypropylene. At first, I was skeptical about the product’s quality due to the plastic components. However, after using it for a while, I’m confident it can last for even a decade.

Some RV owners might dislike this waterless toilet’s boxy design, but I find it aesthetically pleasing. It has an ultramodern look that complements most motor homes’ modern interior.

  • Electric agitator for added convenience
  • Liquid level indicator for efficient urine management
  • Two separate large-capacity urine and solids compartments
  • Robust construction for improved durability
  • Ultra-modern design to fit in modern settings
  • Somewhat pricey
Nevertheless, it remains an excellent buy for RV families who want a reliable commode without worrying about water and flushing again. It looks stylish, too.

4. SUN MAR GTG RV Composting Toilet

Rig owners who want a straightforward installation option should look at Sun Mar’s GTG RV Composting Toilet. Its entire installation process will only take a few minutes and doesn’t require much effort or thought.

You can attribute its easy installation to the small, lightweight design. Its 29-pound construction shouldn’t cause much stress when moving it from place to place. Many people consider this a portable composting toilet because of how easy it can detach and connect.

These users often use the product in other situations, such as barns, boats, cabins, garages, and similar smaller areas. Sun Mar did an excellent job building a multi-purpose option that oozes user-friendliness.

However, its smaller size isn’t its only excellent quality. I was also impressed with its performance when separating waste. This RV composting toilet comes with two separate chambers, one for solid waste and the other for liquid waste. It’s a practical design capable of containing a rig’s waste without issue.

As with our first option, Sun Mar made sure to test this model in harsh and treacherous conditions. Its ability to hold up well in situations bolds well for its performance inside a rig. This reason is the main reason it’s a top-tier camping composting toilet.

But I wasn’t floored by these features like I was when its price tag came across my laptop screen. A top-tier camper composting toilet available for this low of a cost doesn’t come around much. Bargain buyers should be jumping at the chance of purchasing this excellent device.

The product did have some customers who reported having shipping issues. It wasn’t any massive problems, such as damaged packaging. These problems had more to do with the toilet arriving later than expected.

  • Painless installation process
  • Lightweight, compact 29-pound construction
  • Two-chamber design for effective waste separation
  • Tested and thrived in harsh conditions
  • Available at a surprisingly low price for such quality
  • A few customers experience shipping issues
Honestly, I will gladly wait a little longer than expected for a bargain buy like this one. If you can deal with its smaller size, I don’t see why this model isn’t already in your buying cart. It’s a perfect fit for someone who’s traveling alone like myself.

Sun Mar Excel RV Self Contained Composting Toilet (Outdated)

The Sun Mar Excel Non-Electric RV Self Contained Composting Toilet is a perfect option for a small traveling family. It was built for medium to high capacity usage, which means the toilet can handle 2-3 people in an RV without issue.

You can also expect it to function well in various off-grid situations: cabins, farms, RVs, campers, etc. This non-electric model would be perfect in these circumstances and provide absolutely no performance issues.

Buyers should love this product’s variable diameter bio drum and recessed handle, as well. These features will make processing compost a much simpler task. Both of them received nothing but praise from other users in their reviews.

Its low-profile design is another appealing aspect of this option. This feature makes it adaptable to almost any situation. In other words, it shouldn’t have any issue meshing with your bathroom’s interior.

If you’re replacing RV toilet with composting toilet, this product would also be an ideal fit. The toilet’s floor-mounted design should fit right into where your regular toilet was located. Its installation process being relatively simple doesn’t hurt matters, either.

This model should have a long shelf life, too, considering its advanced and durable construction. I don’t imagine any reason why this model wouldn’t have less than a five year lifespan. It should provide full-time results for an extended period without any trouble.

But it does come with a significant drawback worth mentioning. This model has one of the highest price tags of any composting toilet for travel trailer use on the market. It’s going to cost a small fortune in return for top quality.

  • Non-electric model
  • Equipped with a bio drum and recessed handle for easier composting
  • Low-profile design that blend in naturally with any interior
  • Simple floor-mounted installation
  • A long-shelf-life
  • Among the most expensive composting toilets on the market.
Anyone looking for the most trusted composting toilets shouldn’t hesitate to consider this mode from Sun Mar. It has everything a rig owner could want in one of these devices. It’s just a simple matter of paying the higher cost, which is more than worth it for people who can afford it.

Sun Mar Excel RV Self Contained Composting Toilet (Outdated)

Our last option, Sun Mar’s Excel RV Self Contained Composting Toilet, is a perfect choice for anyone who loves nature and saving the planet. Of course, all these devices meet those criteria, but this one is ahead of the pack.

In fact, Sun Mar managed to make this model the first self-contained composting toilet to be certified by the NSF (National Sanitation Foundation). This certification confirms the toilet is leading its competition when it comes to being environmentally friendly.

The product’s capacity is another aspect, which caught my eye. It’s capable of handling full time usage from three adults or a family of five. It can even work with six adults or families of eight when using during a short vacation. As a result, it has a much higher capacity than most options on this list.

I was also intrigued by its 2-inch back vent, which will do wonders when it comes to odor issues. This feature would have no problem keeping even the stinkiest human waste from causing a nightmarish odor.

The product’s white, low-profile design is less critical, but an appealing feature. It shouldn’t make for a tough fit inside an RV bathroom. Its adaptability will ensure the product can mesh into various interiors without being an eyesore.

But two things about this toilet did bother me a bit: the price tag and weight. It’s the most expensive and heaviest product among our choices. Both of these features could cause hassles in several different ways. However, neither issue affects its overall performance quality, which is top-tier.

  • Certified by the NSF
  • Environmentally friendly
  • Large full-time capacity
  • Equipped with a 2-inch back vent for odor management purposes
  • Adaptable, low-profile design
  • Most expensive model on our list
  • Heavier than most other options
Buyers with no budget and installation experience shouldn’t have any qualms about buying this advanced model from Sun Mar. It contains every one of these high-quality features a rig owner could ever dream would be within a composting RV toilet. I’m actually somewhat jealous of people who can afford it.

Nature’s Head RV Dry Composting Toilet (Outdated)

Nature’s Head RV Dry Composting Toilet is an easy contender for the top-rated composting RV toilet. It has numerous aspects that outpace many of its top competitors. You’d be hard-pressed to find another model capable of matching its outstanding features.

One of these features would have to be its hand crank agitator located within its base. Rig owners will love this aspect because it speeds up the composting process considerably. It also ensures the toilet is a lot more user-friendly.

The installation process was another aspect, which amazed me with its overall convenience. It’s such an easy task because this model comes with complete, readable directions.

If those don’t help you out, this model also comes with a step-by-step video. Both these inclusions were godsends for a person like me who tends to struggle with installing devices.

Buyers can’t help but marvel at this product’s stainless steel hardware and molded construction, either. Its design is made for working in the most rugged conditions and wouldn’t even have a problem being a sufficient marine composting toilet.

Aside from these top-tier features, it has several others that have been noted in our previous reviews. Some of them include a versatile design, compact construction, waterless operation, and effective odor management. Each of these features will make your life on a rig much more comfortable and less challenging.

The product’s molded design does provide one small nuisance. It offers a lot of remote areas where gnats could find comfy in those summer months.

  • Complete directions and step-by-step video for easy installation
  • Equipped with hand crank agitator level to encourage fast composting
  • Features stainless steel hardware and molded construction
  • Versatile, compact design
  • Effective odor management
  • Gnats could be an issue
Buyers can easily manage any gnats by being vigilant and keeping up with maintenance. If you do, those little bugs won’t be an issue. As a result, these potential problems aren’t a dealbreaker and shouldn’t stop you from considering this excellent toilet.

Pikkuvihrea Waterless RV Composting Toilet (Outdated)

If you’re in the market for a non-electric option, it doesn’t get much better than Pikkuvihrea’s Waterless RV Composting Toilet. This composting toilet work process leaves a completely odorless bathroom that any rig owner would find appealing.

You can attribute this benefit to its double container design and useful ventilation system. It also helps that adding peat or other binding agents is breezy with this toilet. Honestly, having an RV with composting toilet components has never been so easy.

The double container design also means this device has an effortless cleaning/maintaining process. Multiple users noted how much easier keeping this toilet in good condition than other composting toilets for RV use.

I was thrilled about what came included with the toilet, as well. Buyers will receive an excess liquid hose, two meters of ventilation pipes, all necessary futures, and a peat ladle. As a result, you have everything required to set up this waterless toilet.

Plus, their inclusions mean you don’t have to do additional product research and buy them separately. It removes a hassle that many other brands don’t even think about when putting up an RV composting toilet for sale.

But the product’s main attraction comes from its low-price tag. If this toilet’s smaller size can meet your needs, this choice could save you a lot of money. It’s one of the best bargains among available composting portable toilet systems for RVs.

Its smaller seat size can make sitting on it uncomfortable, though. You’ll have to decide whether comfort or getting a bargain is more necessary before deciding on this product.

  • Odorless composting process
  • Excellent ventilation system
  • Features double container design for easy use and maintenance
  • Comes with all necessary items for installation
  • Affordable price
  • Smaller seat size can cause discomfort for some people
In the end, I’m more than willing to sacrifice my bathroom seat comfort for bargains like this one. Its smaller size would also mesh with my needs as I travel alone. Honestly, it should be a perfect fit for anyone traveling by themselves or in a small rig.

What to Look for When Buying a Composting Toilet for RV


Finding the right RV composting toilet requires knowing what features make up these devices. This section will guide you through these essential parts and ensure you make a smart, responsible decision.

Overall Durability

Durability is one of the most important factors when choosing an RV composting toilet. After all, buyers will want a model capable of lasting a long time without any issues. This desire should make sure every buyer takes notice of each option’s manufacturer and construction material.

In most cases, you can expect these devices to consist partially of vitreous china and plastic. Rig owners would be smart to avoid these options because these particular materials are somewhat vulnerable. I’d suggest spending a bit more on models with a more durable design.

One way to determine a composting toilet’s durability is by reading their customer reviews and product descriptions. For instance, the user reviews should provide much-needed information about how well it holds up in certain situations.

You can utilize the product description to figure out what each one contains, material-wise. It would be smart to look for options made from “heavy-duty materials.” These devices should have no issues holding up in an RV setting.

Toilet’s Tank Capacity

As you might expect, these toilets will vary in cost based on their respective sizes. This reality makes it a smart decision for rig owners with large families to buy larger tank models. On the other hand, people traveling alone would do better purchasing a toilet with a smaller tank.

Most rig owners tend to overlook these details when choosing their toilet. They end up buying toilets with a storage tank capacity not capable of meeting their needs. But thankfully, most manufacturers make finding this factor out relatively easy. It’ll usually detail how many people the toilet can be sufficient for in them.

Decomposing Rate

Another factor worth considering is your chosen toilet’s decomposing rate. This aspect will end up depending on whether it’s an electric or non-electric option. As you might suspect, electric models will provide a much faster breakdown rate. It comes from the device using electricity to power this crucial process.

Meanwhile, non-electric models will come with a much slower decomposition rate. This slower process doesn’t mean these devices can’t be useful in the right situation. A perfect example would be someone traveling alone who’s looking to save a lot of money.

Size and Weight

An RV composting toilet’s weight will unsurprisingly depend on its overall size. You can expect to find models weighing from a low 25 pounds to a ghastly 400 pounds. This wide variety makes it necessary to decide what amount of weight would be ideal for your situation.

In most cases, I’d recommend buying a lightweight option. These types of toilets will ensure your rig’s weight total doesn’t increase by an alarming rate. Another option would be buying a portable RV waste tank.

Rig owners who don’t have access to full hookups regularly usually opt for these waste tanks. They would just need to dump their waste into these devices and haul them to a dumpsite. It’s a convenient way of keeping your rig’s overall weight down.

If you stick with top-tier options, the cleaning process won’t be much of an issue. But the constructions of these devices do affect this area in a significant way. Subpar and even some top-tier models have a habit of bowing and sagging after extended usage.

It can have a drastic impact on certain parts’ precision, such as your toilet’s storage tank. Due to this, the storage tank can become extremely hard to open and can cause spilling. It’s a situation that nobody on this planet wants to experience.

This potential issue makes it essential to invest in options capable of being cleaned by regular household cleaners. It would make dealing with these future spilling issues down the road much more manageable.

I’d also suggest avoiding options that require special cleaning equipment. It’s just an extra hassle, which doesn’t need to be a part of this process.


Installing an RV composting toilet shouldn’t be a complicated task. You’ll want to invest in a model with an easy setup process. If you don’t, this purchase will end up being a complicated hassle that fills you with regret. But it doesn’t have to be this way.

You can avoid this regretful outcome by doing one simple thing, reading buyer reviews. As I mentioned earlier, these resources will be helpful in several ways. One of them will be offering in-depth discussions about how the installation went and its difficulty.

I’d also suggest reading the directions of each product before picking your chosen model. It’ll provide a much-needed handle about how comfortable you feel about doing this process. In most cases, manufacturers will put these instructions right in the product description.


Buying a camper composting toilet isn’t a task that should be taken lightly. It will require spending a nice sum of money on getting your desired option. But the cost of these devices will vary significantly from one to another.

As a result, it’d be wise for every buyer to construct a budget before starting their search. You’ll need to consider every valued feature within before it can become useful. For instance, a person looking to get an option made with heavy-duty materials will need higher budgetary ranges.

Accounting for these types of features is the only way your budget can remain realistic. Once you have a usable budget, it’ll make your search less exhausting by lessening the choices. You’ll end up only picking from reasonably priced toilets capable of meeting your exact needs.

Other Important Factors to Consider

Our buying guide and product reviews should’ve provided an excellent idea of what your chosen RV composting will look like and offer. This section will attempt to answer any remaining questions or concerns which are still running through your mind.

What is a composting toilet for RV?

This question is a rather fundamental one, but still a valuable topic to cover in this type of article. A composting toilet for camper is a type of toilet that doesn’t require water for flushing. These devices will instead separate liquids and solids to stop waste from turning into sewage.

These separated liquids will proceed to a bottle that’s emptied into another toilet, or diluted and sprinkled onto the ground. Meanwhile, the solids will get mixed with an organic medium like peat moss or coconut coir.

It’ll dry them out, lessen the smell, and start the decomp process that eventually turns into compost. Once the compost bin fills, you can then empty it into a compostable bag and toss it in a dumpster or other trash bin.

How does it work?

Our previous section gave you some idea about how the process works, but it’s a bit more detailed. The first thing to understand is a compostable toilet will rely on three elements when digesting waste: moisture, warmth, and oxygen. These three elements are crucial to understanding an RV composting toilet’s working process.

After using an RV composting toilet, adding a scoop of a bulking agent into the toilet bowl is crucial. The bulking agent can be anything similar to sawdust, coconut fibers, peat moss, or straw. In any case, this agent will need to get mixed into the waste, which is done by the toilet itself or by turning the handle.

This mixing process will be followed by anaerobic bacteria using oxygen to break down the waste. Anyone who’s used to composting in their backyard should be familiar with how the breakdown process works.

You should also know that a composting toilet will need to evaporate any excess moisture to work effectively. In most cases, these devices will come with different storage containers for stool and urine. They’ll require a rig owner to empty the urine container separately and wait from the stool to become compost.

But it’s worth noting that the bacteria will need enough oxygen and moisture to work effectively, as well. The toilet must be at an acceptable temperature, too, usually around or higher than 55 F. If it goes below this number, the composting process will cease until it rises back to the right temperature.

Once the composting process is done, your toilet will have a chamber or a finishing drawer. It’s a pivotal inclusion because it allows a user to slide out their humus or compost easily. They can then proceed to dump these toilets composting based on their location’s regulations or laws.

What are the different types of RV composting toilets?

As with almost any device, RV composting toilets will come in different types. The two primary ones are called batch type units and continuous system units. I’ll discuss both below to ensure you can make an easy decision about what kind fits your needs.

  • Batch Type Units

RV composting toilets with two or more bins connected to them are considered batch type units. People who use these types will need to move a full bin to a different area where composting commences and finishes.

On average, composting will take about six weeks to complete. The resulting compost will then proceed to get buried, and the bin is emptied. You then replace the bin, and the device can restart this composting process.

  • Continuous System Units

Continuous system units are a bit more advanced than batch type models. These devices come with a constant system and only contain one chamber. As you might expect, this chamber is where all your waste ends up going.

Your human waste will then remain in this chamber until your toilet’s composting process completes. It sounds like an ideal situation for a rig owner, right? Well, there’s some drawbacks to buying these more advanced options.

One of these drawbacks is users will need rigs with available underfloor space. It’s also worth noting that each pan will demand its own chamber. But the most significant caveat is these devices are much more expensive than what you can expect a batch type to cost.

Why do you need a composting toilet for RV?

Using an RV composting toilet comes with several benefits. I’m going to discuss some of them in greater detail to ensure you know whether investing in one is the right move. In other words, the following information should provide a much better insight into what one of these devices genuinely offers.

  • Clogged Toilets Are No Longer a Potential Issue

Most rig owners like traveling in large numbers rather than by themselves. Due to this, the toilets in their rigs often remain full for an extended period and become clogged. This situation ends up being miserable for everyone as nothing stinks up an area worse than a clogged toilet.

But compostable toilets don’t have this issue. These devices don’t require flushing or use pipes where your waste can get stuck inside. As a result, clogged toilets aren’t a hassle that comes with owning a composting toilet.

It’s also worth noting that no flushing means there isn’t any leftover residue. Therefore, your toilet bowl ends up being a much cleaner bowl. It’s just another benefit from how practical and useful these devices can be for a rig owner.

  • Lack of Noise and Splashing

Composting toilets offer the pleasant benefit of no splashing occurring when someone goes number two. As you know, some people get embarrassed when their bathroom visits end with a splash on an RV. The noise carries through this small area quickly.

But composting toilets don’t have these embarrassing issues because they don’t use water. Due to this, your bathroom visits no longer have to be everyone’s business. It brings about a much more pleasant and user-friendly experience.

  • Less Smelly

One common misconception about composting toilets is these devices smell worse than standard models. It seems to come from them lacking water, and not clearing your waste remains away immediately.

But this belief is classic misinformation. In fact, these devices are a lot less smelly than standard ones when maintained correctly. This benefit is a result of the binding agent placed into your toilet bowl right after usage. It creates a much less smelly and miserable atmosphere onboard your rig.

Frequently Asked Questions (FAQs)


Our FAQ section will tie up any loose ends needed to make a smart, responsible buying decision. These discussions will ensure you’re a person fully capable of picking the best composting toilet for RV.

What are good RV composting toilet brands?

The good RV composting toilet brands will provide two fundamental essentials, top-tier product quality and customer service. It’s crucial to find a manufacturer capable of offering both these qualities when choosing your toilet.

I’ve provided a head start by showing some excellent brands in our product review section. Each of these manufacturers has a reputation for excelling in both these areas without issue. If you stick with them, there’s no reason to believe this process won’t end happily.

One high-quality brand option outside these would be any Airhead composting toilet. Several models from Airhead almost made our list.

Can you put a composting toilet in an RV?

Putting a composting toilet inside an RV is entirely possible. It has become a popular option for rig owners over these last couple of years. If it weren’t viable and common, these companies wouldn’t make models explicitly for RV usage.

Do RV composting toilets smell?

As I mentioned earlier, these devices do have less of an odor than a standard toilet. But these toilets will still smell when not maintained properly. It requires a little upkeep to ensure your rig doesn’t become a smelly nightmare.

Do you really need special toilet paper for RV?

One thing people tend to overlook when buying an RV is their sewage system. These systems are delicate and not as robust as what you’re used to inside a home. Due to this, rig owners need to be extra mindful of what does down their toilets.

This issue alone makes special RV toilet paper a necessity for any rig owner. It’s a good purchase because this toilet paper will disintegrate more quickly. As a result, it will avoid any clogging occurring inside your sewage system or tank.

Of course, toilet paper clogging isn’t an issue for composting toilet users. Most users use a separate container for their toilet paper to ensure the device lasts longer between dumps. But it’s still worth knowing about when you use other rigs or buy another motorhome in the future. It never hurts to be prepared for whatever comes up during your RVing adventures.

Do you have to empty a composting toilet?

Yes, RV owners must empty a composting toilet. It does not matter if it’s a self composting toilet for RV units or a residential model.

RV owners must recognize that an outdoor compostable toilet is a closed system. Its contents do not permeate through the ground and each toilet trip will fill the canister. You can continue using this fixture by dumping its contents and replenishing its composting materials.

The good news is you don’t have to empty the toilet that frequently. If you have a large-capacity composting toilet you seldom use, it’s possible to empty it every few months. However, a small composting toilet might require more regular emptying, especially if you often use it.

What do you do with composting toilet waste?

You can do many things with waste from a composting or waterless toilet for RV. Compost contains nitrogen, potassium, phosphorus, and other elements necessary for plant growth.

Hence, you can add composting toilet waste as topsoil for your lawn or garden, allowing your Bermuda grass to flourish and grow greener. In addition, I recommend sprinkling the composting materials around nut trees, flowering, and ornamental plants.

It’s also a good idea to mix this type of toilet waste with pre-existing compost. This technique will increase the substrate’s nutrient mix, making it more beneficial for plants.

However, some plants do not thrive well in manure laced with human waste. Hence, it would be best not to apply the dry toilet RV waste to culinary plants, such as herbs, fruit-bearing trees, edible flowers, vegetables, and other plants with edible parts.

How often do you have to empty a composting toilet?

The frequency of emptying a portable composting toilet camping unit depends on usage and compartment capacity. Most commercial-grade composting toilets require dumping the decomposing chamber’s contents every two to three months.

The smallest composting toilet might require more frequent emptying than the largest unit. For instance, a 1.8-gallon toilet will fill with human waste faster than a 2.4-gallon composting toilet, so one may need to empty the former more often.

Daily use can also impact emptying frequency. For example, a family who only goes on an RVing adventure once a month might use the composting toilet less often than full-time RVers, who might need to empty their composting toilets every three weeks.

Can you pee and poop at the same time in a composting toilet?

Yes, you can urinate and defecate simultaneously in a composting toilet for motorhome units. Some products have two chambers to accommodate urine and feces.

On the other hand, most composting toilets have a fan system that facilitates moisture evaporation in the composting chamber. This mechanism dries urine and other liquids present in the composting toilet.

How long do RV composting toilets last?

The longevity of RV composting toilets varies depending on toilet quality and maintenance. Additionally, whether the toilet is a non-mobile or portable type can have a say in its expected lifespan.

Permanent residential composting commodes have a lifespan of 15 to 20 years. On the other hand, it is safe to assume that portable RV composting toilets for off-grid living will last less.

Although not a fool-proof indicator, a composting toilet’s warranty should give you an idea of its longevity or lifespan.

For example, some products come with a five-year guarantee, indicating the producers are confident they can last just as long. You can also extend its lifespan with proper use and regular maintenance.

Can you replace an ordinary camper toilet with a composting unit?

Yes, you can replace a conventional RV toilet with a composting commode. However, RVers must recognize that the process might not be straightforward as it sounds.

To be specific, RV owners must ensure the correct size of composting toilet to fit in the existing toilet space. RVers must also remove the old camper toilet and install the composting unit, a feat that requires precision.

Converting RV toilet to composting is a different matter. Composting toilets have technological features not found in ordinary commodes. Integrating these waste-decomposing components into a regular lavatory is next to impossible.

How do you set up a composting RV toilet?

Installing a composting toilet in an RV is a bit difficult to talk about in general terms. Each model will come with a different set of directions, and every rig has its own measurements, as well. But the main thing to remember is installers should always stick to the device’s manual.

These manuals might be a pain, but they come with the product for a reason. If you stick to them, there’s no reason to believe installing one will be overly difficult. I’d even suspect first-time rig owners shouldn’t have much issue.

But if you aren’t doing an DIY RV composting toilet installation, there’s no shame in calling a professional. These experts will ensure your composting toilet gets set up correctly for a reasonable fee. Some manufacturers even offer an expert installation as a purchased add-on during checkout.

How to care and clean?

One of the essential things to remember is throwing toilet paper into an RV compost toilet isn’t a good idea. It’ll only ensure composting RV toilets take a longer time between dumps. After all, even RV toilet paper will fill up your storage tank quickly.

As noted previously, it’s an issue many rig owners deal with by using a separate container for toilet paper. I’d also recommend keeping a spray bottle around filled with a water and vinegar mix. You should use it to spray into your toilet after each use.

This mixture will give your RV’s bathroom a pleasant, clean smell. It’s an effective method because vinegar is a natural sanitizer, which dissipates foul odors quickly. Some rig owners find that adding essential oils into the mix helps, too, but it’s more a preference add-on rather than necessity.


Choosing the best composting toilet for RV use shouldn’t be much of an issue anymore. You just need to apply what you’ve learned from our article into the search. It should make the right choice for your situation readily apparent.

You can then enjoy all the benefits, which comes with having one of these devices on board your rig. But some questions or concerns may pop up during the searching process. If this situation does arise, feel free to use the comment section. I’ll make sure to answer each post as quickly as possible. Thanks for reading!

5/5 - (6 votes)