Rota Loo 950

Batch Composting Toilet

The Rota-Loo 950 is a split-system, batch composting toilet for larger households, public use and other areas with high usage, supporting up to 8 full-time users.

Unique to this model is its ability to connect two toilet pedestals to a single unit. Rota Loo batch composting toilets employ a rotating mechanism where each bin can be used for roughly two-three months before transitioning to the next, offering an annual composting cycle that yields nutrient rich compost that can safely be used e.g. as a natural fertilizer.

📦 Shipping by Quotation Only

Due to the large size of the Rota-Loo 950 composting toilet,
shipping costs are quoted individually based on your location.
It is not possible to place an order directly through the online store.

Please request a quotation
and we will get back to you promptly with a total price including delivery.

split-systems composting toilets blue icon

38" Below clearance required

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6 x Batch composting bins

available in USA

Available in USA

This product is currently out of stock and unavailable.

Rota Loo 950

The Rota-Loo 950 is a unique batch composting solution for larger households or high-usage areas, accommodating up to 8 full-time users. This model is capable of connecting two toilet pedestals to a single composting unit, making it the preferred choice for families seeking an effective and sustainable waste management system.

The larger Rota-Loo 950 requires 38 inches of clear space below the toilet floor level. If you lack sufficient space, you might consider the smaller Rota-Loo 650 or for example the GL 90 split-system composting toilets, which are similar to the Rota-Loo 950 but require significantly less room below floor level. For situations where there is no space available beneath the floor, our self-contained waterless toilets may be a suitable option.

Key Features

  • Rotating Design: The Rota-Loo composting toilet features a large composting container divided into multiple inner composting bins/compartments. A single bin is connected to a porcelain dry toilet pedestal at any one time. When a bin fills up, the internal structure is rotated clockwise to bring a new empty bin into use, while the full bin remains inside to continue composting. This results in batches of compost being processed simultaneously within the unit.
  • Enhanced Capacity: Designed to serve a large family, the 950 model can efficiently cater to the needs of up to 8 individuals, ensuring reliable performance even under high demand.
  • Dual Pedestal Compatibility: Unlike the smaller 650 model, the 950 can accommodate two toilet pedestals simultaneously, offering greater flexibility and convenience for domestic installations.

Operating on a batch composting principle, the Rota-Loo 950 facilitates an odorless, chemical-free process that converts human waste into nutrient-rich humus. This method aligns with eco-friendly practices by minimizing water usage and avoiding the environmental impact associated with traditional sanitation systems.

 

certified-product-logo

The Rota-Loo is a certified product Manufactured to: AS/NZS 1546.2:2008 - On-site domestic wastewater treatment units – Waterless composting toilets.

Download certificate.

 

What is a batch composting toilet?

A batch composting toilet is a waterless toilet that processes human waste through composting in separate batches. Unlike continuous composting systems, which handle waste in a single, ongoing process, batch systems compartmentalize the composting activity into distinct containers or bins. Each bin is filled sequentially, then set aside to allow the waste to compost over time, typically several months, transforming it into nutrient-rich mulch. Once a bin is full, it’s sealed and a new bin is used, minimizing handling and ensuring an odorless, chemical-free process. This method effectively reduces waste volume and recycles nutrients. Batch composting toilets are generally praised for their hands-off approach to the maintenance of waterless toilets.

Rota-Loos are exemplary models of a batch composting toilet. This innovative design incorporates multiple bins within a single large container, each acting as a separate batch unit. As one bin is connected to a dry toilet pedestal and fills up with human waste, it follows the fundamental principles of batch composting by isolating the waste. Once the bin reaches capacity, the internal mechanism of the Rota-Loo allows for the rotation of the container, positioning a new empty bin under the waste chute.

The full bin, now disconnected from the toilet, remains within the unit, where the composting process continues undisturbed. Over several months, the waste in this bin breaks down into nutrient-rich mulch. This system minimizes manual handling of raw toilet waste and maintains an efficient, odorless operation throughout its cycle.

How Rota Loo works?

The Rota-Loo functions much like a rotating clock. Picture it with multiple bins, starting with Bin 1 positioned at what would be 12 o’clock. This bin is used initially and typically fills up over the course of two to three months. Once Bin 1 is full, you simply rotate the Rota-Loo system clockwise to bring the next bin into the primary position at 12 o’clock for use.

This rotation process is repeated as each bin fills. By the time Bin 1 comes full circle back to the 12 o’clock position, usually about a year later, its contents have transformed into a rich, nutrient-dense humus. This humus is not only safe but also beneficial for your garden, completing the eco-friendly cycle. The emptied bin is then ready to be put back into use, starting the process anew.

Installation

The Rota-Loo is designed to be installed with ease and is ideal for both residential and commercial settings. It is supplied as a comprehensive kit, which can be assembled using standard tools that are readily available at most hardware stores.

Space Requirement

The Rota Loo 950 is a split-system composting toilet, meaning it requires a free clearance below the toilet floor level. Specifically, this model needs a minimum of 38 inches of space beneath the floor to function properly. Split-system composting toilets, by design, always necessitate some clearance below floor level.

If you don’t have enough space, you might want to look into the smaller Rota-Loo 650 or the GL 90 split-system composting toilets, which are comparable to the Rota-Loo 950 but need much less space below the floor level. In cases where there is no space below the floor, our self-contained waterless toilets could be an ideal solution.

Installation Highlights:

  • Site Preparation: A flat, level base should be ensured, shielded from the elements, with adequate space allocated for the unit and ventilation components, and convenient access for maintenance.
  • Assembly: The toilet pedestal is to be positioned directly above the Rota-Loo unit to ensure a vertical drop.
  • Ventilation Setup: A ventilation system must be installed to control odors and facilitate the composting process. This involves the fitting of ventilation pipes and a fan to ensure effective air flow.
  • Service Access: Regular access to the compost bins should be planned, making them readily accessible for easy servicing approximately every two months.
  • Power Requirements: The electrical setup for the fan should be prepared.

Before its use, final checks should be conducted to confirm that everything is installed correctly and functioning as expected. This straightforward setup process, coupled with routine maintenance, ensures that the Rota-Loo will be pleasant to use and service.

Service

Servicing the Rota-Loo is designed to be straightforward, ensuring continuous and efficient operation. Here’s a simple guide to servicing the system:

  • Bin Rotation: When a bin becomes full (remaining no more than 4 inches below the top), it is rotated. The access door should be opened, and a mixture of compost starter and water, as specified by the compost starter instructions, should be added through the pedestal.
  • Compost Covering: It is recommended that the compost be covered with about 1 inch of covering material to enhance decomposition.
  • Advance the Bins: The bins are rotated one position clockwise. The bin now under the waste chute, filled with composted material unless it is the first use, should be emptied.
  • Empty and Prepare: The composted material is to be emptied safely. The jute liner, which decomposes more slowly, can also be composted. A new jute liner should be placed in the emptied bin, covered with 2 inches of covering material, and the bin returned to the Rota-Loo. The door is then closed, preparing it for reuse.
  • Record Keeping: The Bin Rotation Diary is to be used to record when bins are turned and emptied. This diary should be kept either on the door of the Rota-Loo or in a nearby accessible location.

These steps ensure that the Rota-Loo is maintained properly, supporting the natural composting process, minimizing maintenance efforts and keeping the toilet pleasant to use.

Specifications

Feature Specification
Product Rota Loo 950
Recommended For
Capacity Up to 8 full-time users
Average Daily Visits
Container Length
Container Width 47.25″
Container Height 37.4″
Container Depth 47.25″
Minimum Under Floor Space Requirement 38″
Volume Per Container 103 Gallons
Container Weight (Empty)
Toilet Weight ~60 lbs
Total System Shipping Weight

rota loo 950 height rota loo 950 width

Delivery Contents

  • 1 x RL950 with 6 x bins
  • 1 x Non-separating Porcelain Dry Toilet Pedestal
  • 1 x RL650 / 950 Filter Pack of 6 filters
  • 1 x Air Inlet Filter
  • 1 x Inlet Pod Connector (300mm)
  • 1 x Outlet Pod Connector (100mm)
  • 1 x Fan Housing and Fan
  • 1 x Waste Chute
  • 1 x Wind Turbine Sewer Vent
  • 1 x Wind Turbine Adaptor
  • 1 x 1L Bottle Biostimulant
  • 1 x RL950 Document Pack

Rota Loo 950

The Rota-Loo 950 is a unique batch composting solution for larger households or high-usage areas, accommodating up to 8 full-time users. This model is capable of connecting two toilet pedestals to a single composting unit, making it the preferred choice for families seeking an effective and sustainable waste management system.

The larger Rota-Loo 950 requires 38 inches of clear space below the toilet floor level. If you lack sufficient space, you might consider the smaller Rota-Loo 650 or for example the GL 90 split-system composting toilets, which are similar to the Rota-Loo 950 but require significantly less room below floor level. For situations where there is no space available beneath the floor, our self-contained waterless toilets may be a suitable option.

Key Features

  • Rotating Design: The Rota-Loo composting toilet features a large composting container divided into multiple inner composting bins/compartments. A single bin is connected to a porcelain dry toilet pedestal at any one time. When a bin fills up, the internal structure is rotated clockwise to bring a new empty bin into use, while the full bin remains inside to continue composting. This results in batches of compost being processed simultaneously within the unit.
  • Enhanced Capacity: Designed to serve a large family, the 950 model can efficiently cater to the needs of up to 8 individuals, ensuring reliable performance even under high demand.
  • Dual Pedestal Compatibility: Unlike the smaller 650 model, the 950 can accommodate two toilet pedestals simultaneously, offering greater flexibility and convenience for domestic installations.

Operating on a batch composting principle, the Rota-Loo 950 facilitates an odorless, chemical-free process that converts human waste into nutrient-rich humus. This method aligns with eco-friendly practices by minimizing water usage and avoiding the environmental impact associated with traditional sanitation systems.

 

certified-product-logo

The Rota-Loo is a certified product Manufactured to: AS/NZS 1546.2:2008 - On-site domestic wastewater treatment units – Waterless composting toilets.

Download certificate.

 

What is a batch composting toilet?

A batch composting toilet is a waterless toilet that processes human waste through composting in separate batches. Unlike continuous composting systems, which handle waste in a single, ongoing process, batch systems compartmentalize the composting activity into distinct containers or bins. Each bin is filled sequentially, then set aside to allow the waste to compost over time, typically several months, transforming it into nutrient-rich mulch. Once a bin is full, it’s sealed and a new bin is used, minimizing handling and ensuring an odorless, chemical-free process. This method effectively reduces waste volume and recycles nutrients. Batch composting toilets are generally praised for their hands-off approach to the maintenance of waterless toilets.

Rota-Loos are exemplary models of a batch composting toilet. This innovative design incorporates multiple bins within a single large container, each acting as a separate batch unit. As one bin is connected to a dry toilet pedestal and fills up with human waste, it follows the fundamental principles of batch composting by isolating the waste. Once the bin reaches capacity, the internal mechanism of the Rota-Loo allows for the rotation of the container, positioning a new empty bin under the waste chute.

The full bin, now disconnected from the toilet, remains within the unit, where the composting process continues undisturbed. Over several months, the waste in this bin breaks down into nutrient-rich mulch. This system minimizes manual handling of raw toilet waste and maintains an efficient, odorless operation throughout its cycle.

How Rota Loo works?

The Rota-Loo functions much like a rotating clock. Picture it with multiple bins, starting with Bin 1 positioned at what would be 12 o’clock. This bin is used initially and typically fills up over the course of two to three months. Once Bin 1 is full, you simply rotate the Rota-Loo system clockwise to bring the next bin into the primary position at 12 o’clock for use.

This rotation process is repeated as each bin fills. By the time Bin 1 comes full circle back to the 12 o’clock position, usually about a year later, its contents have transformed into a rich, nutrient-dense humus. This humus is not only safe but also beneficial for your garden, completing the eco-friendly cycle. The emptied bin is then ready to be put back into use, starting the process anew.

Installation

The Rota-Loo is designed to be installed with ease and is ideal for both residential and commercial settings. It is supplied as a comprehensive kit, which can be assembled using standard tools that are readily available at most hardware stores.

Space Requirement

The Rota Loo 950 is a split-system composting toilet, meaning it requires a free clearance below the toilet floor level. Specifically, this model needs a minimum of 38 inches of space beneath the floor to function properly. Split-system composting toilets, by design, always necessitate some clearance below floor level.

If you don’t have enough space, you might want to look into the smaller Rota-Loo 650 or the GL 90 split-system composting toilets, which are comparable to the Rota-Loo 950 but need much less space below the floor level. In cases where there is no space below the floor, our self-contained waterless toilets could be an ideal solution.

Installation Highlights:

  • Site Preparation: A flat, level base should be ensured, shielded from the elements, with adequate space allocated for the unit and ventilation components, and convenient access for maintenance.
  • Assembly: The toilet pedestal is to be positioned directly above the Rota-Loo unit to ensure a vertical drop.
  • Ventilation Setup: A ventilation system must be installed to control odors and facilitate the composting process. This involves the fitting of ventilation pipes and a fan to ensure effective air flow.
  • Service Access: Regular access to the compost bins should be planned, making them readily accessible for easy servicing approximately every two months.
  • Power Requirements: The electrical setup for the fan should be prepared.

Before its use, final checks should be conducted to confirm that everything is installed correctly and functioning as expected. This straightforward setup process, coupled with routine maintenance, ensures that the Rota-Loo will be pleasant to use and service.

Service

Servicing the Rota-Loo is designed to be straightforward, ensuring continuous and efficient operation. Here’s a simple guide to servicing the system:

  • Bin Rotation: When a bin becomes full (remaining no more than 4 inches below the top), it is rotated. The access door should be opened, and a mixture of compost starter and water, as specified by the compost starter instructions, should be added through the pedestal.
  • Compost Covering: It is recommended that the compost be covered with about 1 inch of covering material to enhance decomposition.
  • Advance the Bins: The bins are rotated one position clockwise. The bin now under the waste chute, filled with composted material unless it is the first use, should be emptied.
  • Empty and Prepare: The composted material is to be emptied safely. The jute liner, which decomposes more slowly, can also be composted. A new jute liner should be placed in the emptied bin, covered with 2 inches of covering material, and the bin returned to the Rota-Loo. The door is then closed, preparing it for reuse.
  • Record Keeping: The Bin Rotation Diary is to be used to record when bins are turned and emptied. This diary should be kept either on the door of the Rota-Loo or in a nearby accessible location.

These steps ensure that the Rota-Loo is maintained properly, supporting the natural composting process, minimizing maintenance efforts and keeping the toilet pleasant to use.

Specifications

Feature Specification
Product Rota Loo 950
Recommended For
Capacity Up to 8 full-time users
Average Daily Visits
Container Length
Container Width 47.25″
Container Height 37.4″
Container Depth 47.25″
Minimum Under Floor Space Requirement 38″
Volume Per Container 103 Gallons
Container Weight (Empty)
Toilet Weight ~60 lbs
Total System Shipping Weight

rota loo 950 height rota loo 950 width

Delivery Contents

  • 1 x RL950 with 6 x bins
  • 1 x Non-separating Porcelain Dry Toilet Pedestal
  • 1 x RL650 / 950 Filter Pack of 6 filters
  • 1 x Air Inlet Filter
  • 1 x Inlet Pod Connector (300mm)
  • 1 x Outlet Pod Connector (100mm)
  • 1 x Fan Housing and Fan
  • 1 x Waste Chute
  • 1 x Wind Turbine Sewer Vent
  • 1 x Wind Turbine Adaptor
  • 1 x 1L Bottle Biostimulant
  • 1 x RL950 Document Pack
upgrade to a urine diverting toilet pedestal

Option: Upgrade to Urine-Separating Porcelain Pedestal

By default, all our split-system composting toilets, including the Rota Loo 950, come with a high-quality non-separating porcelain pedestal. For those who prefer, we offer the option to upgrade to a urine-diverting porcelain pedestal. This design separates urine from solids at the the toilet seat, reducing odors and need for additional bulking agents.

Customer Reviews

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  1. NP

    This is not our first composting toilet, but the first we’ve had with the below-deck composting compartment (ie. large scale). Although we imported directly from Australia some time ago, we’ve only just installed and started using the product for a few months. We’re very happy with the product’s simplicity and elegant (and more importantly easy-to-clean) porcelain pedestal. The only constructive criticism we have at this time was the lack of installation instructions for the system as a whole. While there was plenty of documentation on the composting bins themselves, instructions on how to fix the assembly to the building or even attaching the toilet seat lid (which seems to be backwards from North Americal standards) was lacking in both the physical manual that came with delivery and the electronic manual that was sent to us ahead of time while we awaited shipment. That said, when we did reach out for support were were provided with exactly the information we needed, including diagram, in less than an hour – FANTASTIC customer service!

    Grateful to hear shipment is now available from North America (it was VERY expensive to import, although more cost effective than septic or holding tank which also requires costly maintenance). In 8-12 months, once we’ve been through an entire cycle of bins, if all goes well we plan on purchasing this item again for another off-grid project.

Let our customers speak for us

Frank W Szymanski
Frank W Szymanski
Reviewer
5/5

I have been servicing and installing composting toilets for 17 years at a seasonal cottage community. Recently I installed two of the UD pedestals for a client, I was very impressed with the quality, as was my clients. The toilets are superior to any brand I've encountered, sunmar, envirolet, nature head, all use thin plastic components. These sturdy porcelain like youd fine in a real bathroom and clean better and dont stain like the plastic ones.

Love the ability to move where the waste pipe and exhaust pipe are installed on the unit, it allows for many options when installing so you can optimize the functionality of the unit. Other units you have to compromise constantly because of the hard mounted penetrations.

2 months ago
Eric and Lauri
Eric and Lauri
Verified ownerVerified owner
5/5

We are very pleased with the experience of the GL90. Everything was of good quality and mostly easy to install. The porcelain throne is very high quality and looks very nice. There is absolutely no odor. We had to turn off the power to the fan a couple of times, and there was only a faint smell of fresh pine shavings and hemp. We also inadvertently discovered that the hemp shavings are far superior to pine in the absorption factor. We see now that is explained on the website. We are temporarily using a 5 gallon plastic bottle for liquid containment until our leachate system is complete. At first we were using the supplied hemp and had little to no liquid in the bottle. When we ran out of hemp, we used some local pine shavings and noticed the bottle filled up much more quickly. I'm thinking that using hemp will allow the moisture to remain in the pile longer and allow the fan to evaporate more liquids. Hence, making for less emptying of the liquids container until leachate system and filter is installed. It did take a few return trips to town to get the 4 in vent plumbing that I could make work with supplied fittings. I would suggest giving specific instructions and materials for the type of pipe and fittings that will actually work to save people the time and effort. Fernco fittings saved the day. It was more of a challenge than I anticipated with the various 4 in pipe available on the market. AI wasn't totally accurate either because of the metric to imperial conversion. I'll post pics in the near future for reference of what worked for me. The other small details of installing the porcelain toilet: the measurements for placing the toilet mounts seemed to be a bit off and I had to screw in at an angle to get it to work. I measured several times. Also, one of the screws that secure the mounts to the floor broke as well as i was driving it in. I found a more stout screw for that. With those small details the system still rates a 5 in our experience. Service and product are exactly what we had hoped for. Thank you Nicholas.

2 months ago
Image #1 from Bill SpikowskiImage #2 from Bill SpikowskiImage #3 from Bill Spikowski
3
Bill Spikowski
Bill Spikowski
Reviewer
5/5

Our GL90 is up and running; we just swapped out the container for the first time. I really love how small the composting container is, and bought an extra container in case it requires removal more often than projected.

Our situation had a number of odd wrinkles:

❖ This is an elevated house; the living area including the bathroom is 8' off the ground. The area below the house is unenclosed, so we didn't have typical space constraints.
❖ We were replacing an original "Carousel" compost toilet from the early 1980s, so we had to line the GL90 up with the original chute, and find a way to connect it to the original vent pipe.
❖ One complication is that the old Carousel was destroyed by flooding from Hurricane Milton. It was raised less than a foot above ground, and the roaring floodwaters came up about 3 feet. So wanted the replacement composting container to be elevated as high as possible. My solution was to hang it from the ceiling below the house, to avoid any structure under the container that could get washed away if we get another flood like that (even if the container itself was above the flood level).
❖ Another complication, this one self-inflicted, was that I was also reinstalling the fire sprinkler system and the water heater, both of which were also destroyed by flooding, and needed to be elevated as well -- and for various reasons needed to be in almost the exact location where the toilet needed to go, and needed to be protected from wind-driven rain.

I did have a few technical problems with the GL90:

❖ I was aware that the hose and vent fittings on the GL90 were metric, but I hadn't realized that the nominal metric sizes used in Australia are different than nominal metric sizes for hose and pipe made everywhere else in the world! After numerous false starts and then deep research, I finally figured out ways to make everything work -- but that wrinkle alone took this project way beyond the DIY world. Good thing I love a challenge, and have technical and research skills...
❖ We had a serious fly problem shortly after we began using the GL90. I still am not sure exactly why, but I did notice that the lid doesn't fit tightly on the container. The three clamps just aren't enough to keep even marginally fly-proof. My solution has been decidedly low tech: a brick on the lid between each pair of lid clamps. It's also possible that the exhaust fan is too weak; I've purchased a replacement that should move twice as much air.
❖ I still haven't figured out how to keep the toilet seat on straight. It keeps moving off center, and I'm afraid to tighten the connecting screws any further; they don't seem that robust. The brackets hold the toilet to the floor don't seem that robust either, but the toilet has stayed in place, so I don't want to argue with success (and I'm managing to avoid permanently fastening the toilet to the beautiful terra-cotta tile floor in the bathroom).

3 months ago
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In urgent matters, please email us at info@waterlesstoiletshop.com

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CF 8 Composting Toilet – Estimated Daily Capacity

The CF 8 is a continuous composting toilet system featuring a single large 250-gallon container. Like the CF 4, it is designed for gradual emptying rather than batch-style use. Solids are typically removed in thirds or sections, allowing earlier deposits time to fully compost inside the tank.

This setup allows for either:


🔁 Continuous Use: Gradual Emptying in Thirds

When used year-round, the CF 8 is typically emptied one-third at a time, effectively composting in three rotating “piles” within the container.

Because the CF 8 is more than twice as large as the CF 4, each pile can hold approximately 480–960 poops, depending on composting conditions and how much bulking material is used.

Service Interval (per pile) Estimated #2 Visits per Day
30 days (1 month) ~17–32 visits/day
60 days (2 months) ~8–16 visits/day
90 days (3 months) ~5–11 visits/day
180 days (6 months) ~3–5 visits/day
365 days (1 year) ~1.2–2.6 visits/day

💡 These figures assume that one-third of the tank is in active use at a time, with older waste given time to compost before removal.


🌤 Seasonal Use: Full-Tank Emptying After Inactive Period

For cabins, cottages, or other sites used seasonally, the CF 8 can be used for a few months and then left idle to allow full composting. In such cases, the entire tank may be emptied once a year.

Full-tank capacity estimate: ~1,440–2,880 poops

Example: 120 days of use (approx. 4 months):
→ ~12–24 solid visits per day on average


⚠️ Disclaimer

These numbers are rough estimates based on typical use and conditions. Actual capacity will vary depending on:

For best performance, ensure proper aeration, regular bulking material use, and consistent emptying of composted portions.


💡 Want to Maximize Capacity? Consider a Urine-Diverting Toilet — With Some Important Considerations

upgrade to a urine diverting toilet pedestal

If you’re looking to maximize the capacity of the CF 8 system — aiming for 960+ poops per composting “pile” — we recommend using a urine-diverting (UD) toilet pedestal.

✅ Benefits of Urine Separation:

By diverting urine out of the solids container, the volume taken up by absorbent material (like peat or wood shavings) is significantly reduced. This can make a big difference in how often the system needs to be emptied.


⚠️ Downsides to Consider:

Urine-diverting toilets can take some time to get used to. Users need to sit or aim correctly to ensure proper separation, which might not happen consistently without experience or guidance.

For this reason, UD toilets are generally not ideal for public or commercial settings where the toilet is used by guests, tourists, or other first-time users. In these cases, misuse can reduce the effectiveness of the system and may even lead to unpleasant maintenance issues.


In short: A UD toilet is an excellent choice for maximizing capacity in private or family use, but for guest or public access composting toilets, a standard non-diverting model may be more practical and user-friendly.

Green Toilet 100 Easy – Estimated Daily Capacity

The Green Toilet 100 Easy is a compact and user-friendly batch composting toilet with a 26-gallon composting container. Its design makes it well-suited for outhouses, cabins, and even indoor use. A spare container is available to expand capacity and simplify servicing.


🔢 Estimated Solid-Waste Capacity per Bin:

Note: Due to the shape and internal structure of the container, the actual composting capacity is slightly lower than its raw volume might suggest, if you compare with Green Toilet 120 Family composting toilet for example.


📆 Average Daily Capacity per Bin

Service Interval Estimated #2 Visits per Day
30 days (1 month) ~6–7 visits/day
60 days (2 months) ~3–4 visits/day
90 days (3 months) ~2.2 visits/day
180 days (6 months) ~1.1 visits/day
365 days (1 year) ~0.5 visits/day

Notes & Recommendations:


⚠️ Disclaimer:
These estimates are intended as general guidance. Real-world performance may vary depending on:

CF 4 Composting Toilet – Estimated Daily Capacity

The CF 4 is a continuous composting toilet system featuring a single large 105-gallon container. Unlike batch composting systems (such as the Green Toilet models), the CF 4 is designed for gradual emptying — solids are typically removed in thirds or sections, allowing earlier deposits time to fully compost inside the tank.

This setup allows for either:


🔁 Continuous Use: Gradual Emptying in Thirds

When used year-round, the CF 4 is typically emptied one-third at a time, effectively composting in three rotating “piles” within the container. Depending on composting conditions and how much bulking material is used, each pile can hold approximately 200–400 poops.

Service Interval (per pile) Estimated #2 Visits per Day
30 days (1 month) ~7–13 visits/day
60 days (2 months) ~3–7 visits/day
90 days (3 months) ~2–4 visits/day
180 days (6 months) ~1–2 visits/day
365 days (1 year) ~0.5–1.1 visits/day

💡 These figures assume that one third of the tank is in active use at a time, with older waste given time to compost before removal.


🌤 Seasonal Use: Full-Tank Emptying After Inactive Period

For cabins, cottages, or other sites used seasonally, the CF 4 can be used for a few months and then left idle to allow full composting. In such cases, the entire tank may be emptied once a year.


⚠️ Disclaimer

These numbers are rough estimates based on typical use and conditions. Actual capacity will vary depending on:

For best performance, ensure proper aeration, regular bulking material use, and consistent emptying of composted portions.


💡 Want to Maximize Capacity? Consider a Urine-Diverting Toilet — With Some Important Considerations

upgrade to a urine diverting toilet pedestal

If you’re looking to maximize the capacity of the CF 4 system — aiming for 400+ poops per composting “pile” — we recommend using a urine-diverting (UD) toilet pedestal.

✅ Benefits of Urine Separation:

By diverting urine out of the solids container, the volume taken up by absorbent material (like peat or wood shavings) is significantly reduced. This can make a noticeable difference in how often the system needs to be emptied.

⚠️ Downsides to Consider:


In short: A UD toilet is an excellent choice for maximizing capacity in private or family use, but for guest or public access composting toilets, a standard non-diverting model may be more practical and user-friendly.

Green Toilet 120 Family

💩 Average Daily Capacity per 31-Gallon Composting Bin

(Based on approx. 356 uses involving a #2 — i.e., poop) – only the solids count!

Service Interval #2 Visits per Day (involving a #2)
30 days (1 month) ~11.9 visits/day
60 days (2 months) ~5.9 visits/day
90 days (3 months) ~4.0 visits/day
180 days (6 months) ~2.0 visits/day
365 days (1 year) ~1.0 visits/day

🟢 What counts as a “#2 visit”?
Only visits that involve pooping (i.e., going number two) — urine-only visits don’t contribute to filling the composting bin and are not included in the estimate.

⚠️ Disclaimer:
These estimates are approximations. The actual number of solid uses per bin may vary significantly depending on climate, temperature, ventilation, user habits, and the amount of dry bulking material (e.g., wood shavings or peat) added after each use.

Green Toilet 330

💩 Average Daily Capacity per 87-Gallon Composting Bin

(Based on approx. 1,000 uses involving a #2 — i.e., poop) – only the solids count!

Service Interval #2 Visits per Day (involving pooping)
30 days (1 month) ~33 visits/day
60 days (2 months) ~17 visits/day
90 days (3 months) ~11 visits/day
180 days (6 months) ~5.6 visits/day
365 days (1 year) ~2.7 visits/day

🟢 What counts as a “#2 visit”?
Only visits that involve defecation (pooping) — urine-only visits don’t fill up the composting bin and are not included in the 1,000-use estimate.

⚠️ Disclaimer:
These estimates are based on typical, steady use. The actual number of solid uses a composting bin can handle may vary significantly depending on climate, temperature, humidity, ventilation, and how much dry bulking material (like wood shavings) is added after each use.

Composting toilet waste pipe extension

💧 Liquid waste (urine) estimate

Average person produces about:

So for 100 people:


🚽 Flush water use estimate

Average flush volume in the U.S. is about:

Average person flushes ~5 times per day, so:

So for 100 people:


✅ Summary in gallons

Type Per person For 100 people
Urine (liquid waste) ≈0.4 gal/day ≈40 gal/day
Flush water (toilet only) ≈7.5 gal/day ≈750 gal/day
Product Image Product Clearance Requirement
CF 4 continuous composting toilet with porcelain pedestal green background CF 4 Continuous composting toilet 13″ (when partially buried)
gl 90 batch composting toilet package GL 90 Batch composting toilet 18″
CF 8 continuous composting toilet with non separating porcelain pedestal blue background CF 8 Continuous composting toilet 18″ (when partially buried)
Rota-Loo 650 Split-system Batch Composting Toilet Rota Loo 650 Batch composting toilet 26″
Green Toilet Lux 120 Composting toilet with spare container package Green Toilet Lux 120 Batch composting toilet 28″
Green Toilet Lux 330 Composting toilet with spare container package Green Toilet Lux 330 Batch composting toilet 37″
Rota Loo 950 batch composting toilet blue background Rota Loo 950 Batch composting toilet 38″

📞 Customer Service Hours
We’re here to help!

📱 Phone: 1-702-328-0689
💬 Live Chat: Start a Chat Now

Our team is always available to assist you during the following hours:

Monday – Friday: 6:00 AM – 2:00 PM Pacific Time
Saturday – Sunday: Closed
Holidays: Closed

Have a question outside of our service hours?
Feel free to leave us a message through our contact form or email us at info@waterlesstoiletshop.com.

We’ll get back to you as soon as possible on the next business day.

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Urine Separation in Composting Toilet Article

outhouse next to winter cottage (1)

outhouse next to winter cottage

 

open compost bin outdoors

open back bench-type-of seat
Installation principle of Green Toilet 120 and 330

Green Toilet 120 Family composting toilet installed

Green Toilet 120 Family installed underneath outhouse seat

Green Toilet 330 outhouse inside flat seat

Green Toilet 330 ventilation pipes

Green Toilet features ventilation pipes.

On top of the vent pipe stack here is a Whirlybird

Green Toilet double base from below

Green Toilet’s double base from below

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