A dry toilet solution to flushing away fresh water.
The Solarid Toilet System brings the dry flush experience to life. It delivers a familiar toilet experience in places where traditional sanitation systems can’t go. Waterless, reliable, and ready for daily use without wasting fresh water.
New toilet technology. Built for real conditions.
Human-centered engineering that delivers a fully waterless toilet experience with the same familiar feel as a traditional flush.
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The Solarid Toilet uses a dry-flush piston system that moves waste with minimal power and no water.
Step on the foot pedal to activate the piston, and the system sends waste directly into the sealed containment tank for a clean, hands-free, and reliable flush every time.
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Operating Voltage: 12 VDC
Power Used per Day: 34 watt-hours/day
Water Usage: 0 Gallons
Number of Flushes Per Day: Unlimited
Temperature Range: -10°F to 130°F
Material: Plastic
Made in the USA
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A built-in micro-computer tracks usage and service needs, powered by a 12 VDC system compatible with solar panels or rechargeable batteries for smart, off-grid operation.
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Standard Model
Compact Model
Squat Model
Designed for every-day use.
Works where traditional systems fall short.
Ideal for remote sites, off-grid builds, and locations without sewer or septic access.
A familiar flush, no water required.
The dry-flush piston creates the same user experience without using fresh water.
Low-maintenance by design.
A single moving part and a sealed containment tank keep operation simple and dependable.
Stop the cycle of flushing away fresh water.
Toilets are by far the main source of water use in the home, accounting for nearly 30 percent of an average home's indoor water consumption in the US*.
*U.S. Environmental Protection Agency. (2025, March 6). Residential toilets. EPA WaterSense.
Solarid Toilet revolutionizes the dry toliet.
Developed by engineers. Patented design. Unparalleled waterless sanitation.
From the start.
Solarid Toilet System began in 2011, when our founders built homes for families in Baja, Mexico. With no roads, water, or sanitation, traditional toilets made zero sense. Families refused to waste their limited water on flushing.
The first Solarid Toilet was built there—a waterless design that delivered dignity and a clean, reliable option where none had existed. Fourteen design evolutions later, Solarid still carries that purpose forward: the dry flush experience that works anywhere.
Let’s work together.
We are currently seeking mission-aligned partners to pilot our dry-flush technology. Fill out the form below, and a member of our team will reach out.
Questions we get asked.
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The main difference is how waste is moved. Traditional flush toilets use water to push waste away, while the Solarid Toilet uses a mechanical piston to do the job without any water.
This approach results in a lower environmental footprint and significantly reduces upfront costs because it eliminates the need for a septic tank or leach field.
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The Solarid Toilet and incinerator toilet work very differently. An incinerator toilet burns waste into ash, which requires significant energy and has higher operating costs.
In contrast, the Solarid Toilet uses a mechanical flush system to move waste into a pit, chamber, or tank, with much lower energy use, fewer moving parts, and lower overall operating costs.
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Once the toilet has been flushed, the system is completely sealed off from the waste tank and is odor-free. The tank has a separate exhaust to vent gases.
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Toilet Bowl
Toilet Seat & Lid
Piston
Control Switch and Wiring (optional smart capabilities)
Waste Chute
12 Volt Back-Up Battery
Foot Pedal
Waste Chute Adapter to Collection System (6-Inch PVC)
Manual Override Switch
Mounting Screw & Washer
NOT Included (dependent on installation location):
Screws to anchor to the floor joist, mount blocking, and screws
Waste collection system add-on
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Yes. The toilet ends with a standard 6" PVC coupler. Most composting or holding tanks either have a 6" or smaller opening, or can be modified to fit this connection.
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No chemicals required.
If you're using the toilet in an RV or enclosed space and need to add enzymes to help control tank odor, you may still continue to do so with the Solarid Toilet, though this isn't necessary for normal operations.
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The Solarid Toilet works very similarly to a traditional flush toilet — simply step on the foot pedal, wait a few seconds, and the internal piston system pushes the waste away.
It’s simple, intuitive, and waterless. One key difference: Do not use the toilet while the piston is in motion (i.e., during its "flush" cycle). Doing so will cause waste to be pushed in the wrong direction.
Don’t worry! There’s a built-in safety system to manage this if it happens accidentally.
For more detailed information, check out our helpful resources:
User Guide – Perfect for first-time users. It walks you through how to use the toilet, step by step.
Owner’s Manual – A comprehensive reference covering troubleshooting, how the system works, cleaning best practices, what to do in a power outage, warranty information, and more.
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While the Solarid Toilet is more forgiving than a standard flush toilet, it’s best to follow the same rules about what can be flushed.
To keep the system running smoothly and avoid clogs:
Do not flush items that could clog the pump truck’s hose, such as diapers, cans, bottles, or other bulky objects.
Avoid flushing dirt, sand, or gritty materials, as these can get trapped between the piston head and the waste chute, potentially causing damage.
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You’ll need to wait about 28 seconds between flushes for the standard model and 16 seconds for the compact model.
That’s how long it takes for the piston system to complete its cycle. Once the motor stops running, the toilet is ready to be used again.
Note: The toilet cannot be used while flushing. A pressure sensor in the seat prevents the piston from activating if someone is sitting, helping avoid accidents.
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The emptying frequency depends on the type and size of the containment system connected to your Solarid Toilet — such as a pit, composting chamber, or holding tank.
We recommend consulting your specific containment system manufacturer for guidance tailored to your setup.
As an example, a typical household of 2 adults and 2 children, where one adult does not work at home, using a standard 250-gallon waste tank, will want to have the tank emptied an average of once per year. -
Yes! The Solarid Toilet can be powered by solar energy or any power source that provides stable 12V DC power.
You'll need to pair your solar panels with a battery system to ensure consistent operation. This allows the toilet to function reliably even when the sun isn’t shining.
It’s a great option for off-grid setups, cabins, or mobile homes.