Many people hesitate to switch to a composting toilet due to concerns about potential smell issues or handling waste. However, modern composting toilets—like those available at Waterless Toilet Shop—are eliminate odors and make onsite waste management easy and hygienic. While these common fears are largely unfounded, there are some aspects of composting toilets that could be considered drawbacks. In this article, we’ll explore these challenges and offer solutions to help make composting toilets a great choice for your home, cabin, or off-grid setup.
The Need for Planning
Unlike traditional flush toilets, composting toilets come in a variety of models, each suited for different needs. There is no “one-size-fits-all” solution. To ensure a well-functioning composting toilet, careful planning is essential. Key factors to consider include:
Installation requirements – Does your building structure allow for type of a composting toilet best for you?
Maintenance expectations – Who will be responsible for occasional emptying or upkeep?
Waste treatment and disposal – Where do you empty the solids after proper composting? How to deal with liquid waste separated from the composting toilet
To mitigate this challenge, we recommend contacting us at Waterless Toilet Shop. Our experts can help you select the best composting toilet for your situation.
Maintenance Is Required
While modern composting toilets are relatively low-maintenance, they do require occasional upkeep. For most users, maintenance only takes a few minutes per month or year, depending on usage. However, for elderly individuals or people with disabilities, even minor upkeep may be a challenge. If maintenance is a concern, we recommend choosing a system with an extended composting cycle or considering models that require less frequent intervention.
Large-capacity composting toilets, a.k.a. split-systems, require clear underfloor space below the bathroom floor for external composting unit. This setup works well in homes with basements, crawl spaces, or raised foundations but can be challenging for structures built on slabs, concrete floors, or other space-restricted designs.
For example, the GL 90 requires a minimum of 18 inches below the floor
For families or larger groups using a composting toilet full-time, lack of adequate space can limit the options. If a below-floor installation isn’t feasible, alternative solutions include:
However, the tradeoff with these space-saving options is that they tend to be smaller in capacity and require more frequent servicing. This means emptying the composting chamber more often compared to a larger, central system. If minimizing maintenance is a priority, it’s important to carefully choose a model that balances space constraints with service frequency.
If you’re unsure whether your space can accommodate a composting toilet, we can help you explore the best options for your setup.
Regulations and Permitting Challenges
One of the hurdles in adopting a composting toilet is navigating local regulations and permitting. In the United States, composting toilets are often classified under alternative onsite wastewater treatment systems (OWTS), and regulations can vary by state or county. Many local codes focus primarily on septic systems and other water-based toilets, making it difficult to find clear guidelines on composting toilets.
Urine-diverting composting toilets require users to sit while urinating in order to properly direct liquid waste into the urine-diverting section. This means that men who typically stand while urinating will need to adjust their habits.
A few potential solutions to this issue include:
Adding a waterless urinal alongside the composting toilet to allow standing urination
Choosing a non-diverting model that separates liquids from solids inside the composting chamber rather than at the seat level
Conclusion
While composting toilets come with some challenges, most drawbacks can be addressed with proper planning, product selection, and installation strategies. Compared to traditional flush toilets, composting toilets offer significant advantages, including water savings, sustainability, and off-grid usability.
If you’re considering a composting toilet but are unsure about which model is right for you, reach out to us at Waterless Toilet Shop. We can guide you through the selection process and help you find the perfect composting toilet for your needs!
Our Customer Service team is currently on holiday until January 5th, 2026.
In urgent matters, please email us at info@waterlesstoiletshop.com
Thank you for your patience and support. Happy New Year 2026!
Waterless Toilet Shop – Black Friday & Cyber Monday Campaign Terms and Conditions
Campaign Period
This Black Friday & Cyber Monday promotion (“Campaign”) runs from November 17, 2025 through December 1, 2025 (Cyber Monday). All qualifying orders must be placed during this period. No retroactive discounts will be applied to orders placed before or after the Campaign Period.
Eligibility
The offers are valid only for purchases made on waterlesstoiletshop.com or through direct communication with Waterless Toilet Shop during the Campaign Period. Discounts apply to new orders only.
Campaign Offers
The following products include fixed discounts during the Campaign Period:
$100 OFF all Green Toilet Lux composting toilet packages
$100 OFF CF 4 composting toilet systems
$100 OFF Oz-e-Pod composting toilets
$1000 OFF Rota Loo 650 composting toilets
All other products: price reductions may be available. Customers must request a quote during the Campaign Period to receive the best possible offer.
Discounts are automatically applied to listed sale prices or will be reflected in quoted pricing (as applicable).
Limitations
Discounts cannot be combined with any other promotions, coupons, or discount codes unless explicitly stated.
Discounted pricing applies per product, not per order.
Limited inventory: discounts apply only while stock remains available. Some products may have extended lead times.
Shipping costs are not discounted unless otherwise stated.
Request-A-Quote Items
Products requiring a custom quotation must be requested during the Campaign Period. Quotes provided as part of the Campaign will remain valid for 7 days unless otherwise specified.
Payment & Order Completion
To secure the campaign pricing, full payment or an agreed deposit must be received within the quote validity period. Waterless Toilet Shop reserves the right to void quotes not paid within the specified timeframe.
Cancellations & Returns
Standard return and cancellation policies apply. The campaign discount is non-refundable and will not be “reapplied” to replacement orders outside the Campaign Period.
General
Waterless Toilet Shop reserves the right to:
modify or withdraw this Campaign at any time,
correct pricing errors,
limit quantities per customer,
decline requests that do not meet eligibility criteria.
By placing an order during the Campaign Period, customers agree to these Terms and Conditions.
Our phone customer service is closed today.
Email customer service remains available — please contact us at info@waterlesstoiletshop.com
, and we’ll get back to you as soon as possible.
Thank you for your understanding.
Pay with Klarna
We’re excited to now offer Klarna as a payment option at Waterless Toilet Shop!
Choose how you want to pay — all at once or with flexible installments that fit your budget.
💸 Pay in 4 — Interest-Free
Split your composting toilet purchase into four equal payments every two weeks.
No interest, no hidden fees — just a smarter way to pay over time.
Other Flexible Options
Klarna also offers monthly financing with 6–24-month plans and transparent APR rates based on your credit.
You’ll see all available payment options instantly when you select Klarna at checkout.
Klarna financing is issued by WebBank and available to eligible U.S. residents in most states.
Missed payments may incur late fees. For California residents, loans are made or arranged pursuant to a California Financing Law license. Review Klarna’s terms.
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:
Year-round use with gradual emptying, or
Seasonal use (e.g., 4–5 months/year) with full emptying once per year
🔁 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:
Climate (temperature and humidity)
Ventilation and air flow
How much dry bulking material is added
User behavior and emptying practices
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
If you’re looking to maximize the capacity of the CF 8 system — aiming for 960+ poops per composting “pile” — we recommend using aurine-diverting (UD) toilet pedestal.
✅ Benefits of Urine Separation:
Reduces or eliminates the need for dry bulking material, which frees up valuable space in the composting unit
Helps keep the compost drier, more aerated, and better suited for natural decomposition
Increases the total capacity of the composting container
Can lead to faster and more efficient composting, especially in high-use environments
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.
🚚 $100 OFF Shipping Cost – Green Toilet 330 Composting Toilets
No promo codes, no extra steps – the discount is automatically applied at checkout.
If you experience any technical issue and the discount does not apply automatically, you can manually enter
the coupon code 100OFFSHIPPING during checkout to receive the offer.
The Green Toilet 330 and Green Toilet Lux 330 are ideal for cabins, cottages, off-grid homes, and other locations where
reliable, low-maintenance, and environmentally friendly waste management is a priority. Their batch composting design
makes servicing simple and hygienic, with a spare container included to keep the system running without interruption.
Campaign details:
Offer valid until August 31, 2025 or while stock lasts
Discount applies only to Green Toilet 330 and Green Toilet Lux 330 composting toilet orders
Automatically applied at checkout – or use coupon code 100OFFSHIPPING if needed
Applies to orders shipped within the Lower 48 states only
Upgrade your off-grid toilet system now and save on shipping while supplies last.
Green Toilet 100 Easy – Estimated Daily Capacity
The Green Toilet 100 Easyis 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 containeris available to expand capacity and simplify servicing.
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:
For seasonal or weekend use, one container often lasts a full summer.
For more frequent use, we recommend the package with a spare container. This allows one bin to rest and compost while the other is in active use.
Don’t forget to add dry bulking material (like wood shavings or peat) regularly to maintain airflow and prevent odors.
⚠️ Disclaimer: These estimates are intended as general guidance. Real-world performance may vary depending on:
Climate and temperature
Ventilation quality
How much dry bulking material is used
Number of users and usage patterns
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:
Year-round use with gradual emptying, or
Seasonal use (e.g. 4–5 months/year) with full emptying once per year
🔁 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.
Full-tank capacity estimate: ~600–1,200 poops
Example: 120 days of use (approx. 4 months): → ~5–10 solid visits per day on average
⚠️ Disclaimer
These numbers are rough estimates based on typical use and conditions. Actual capacity will vary depending on:
Climate (temperature and humidity)
Ventilation and air flow
How much dry bulking material is added
User behavior and emptying practices
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
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:
Reduces or eliminates the need for dry bulking material, which frees up valuable space in the composting unit
Helps keep the compost drier, more aerated, and better suited for natural decomposition
Increases the total capacity of the composting container
Can lead to faster and more efficient composting, especially in high-use environments
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:
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 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.
💧 Liquid waste (urine) estimate
Average person produces about:
0.4 gallons of urine per day (≈1.5 liters ≈ 1.6 quarts)
So for 100 people:
0.4 gallons × 100 = 40 gallons of urine per day
🚽 Flush water use estimate
Average flush volume in the U.S. is about:
1.5 gallons per flush
Average person flushes ~5 times per day, so:
1.5 gallons × 5 = 7.5 gallons/person/day
So for 100 people:
7.5 gallons × 100 = 750 gallons of flush water per day
Composting
Off-Grid
Indoors
Split-systems
Self-contained
Tiny House
Urine-diverting
Year-around
Luxurious
Cabins
RVs
Large capacity
Cold climate
Glamping
Outhouses
Batch toilets
Public use
Continuous
Accessories
