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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 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 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
For a limited time, enjoy $100 off the shipping cost when you order a
Green Toilet 330 or Green Toilet Lux 330 composting toilet.
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 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:
-
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:
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:
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 |
📞 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.
Green Toilet features ventilation pipes.
On top of the vent pipe stack here is a Whirlybird
Green Toilet’s double base from below
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