The S1 redefines off-grid hygiene with its advanced, battery-powered, heat sealing system. Unlike traditional dry flush toilets, the S1's urine diverter keeps solid and liquid ...
Who Can Use Dry Flush Toilets?
Dry flush toilets like our S1 Dry Flush Sealing Toilet are perfect for RVs, vanlife, cabins, boats, tiny homes, and more.
They’re designed to be easy to use, easy to clean, and completely water-free, with mechanical sealing mechanisms that lock away solids instantly and keep odors at bay, especially thanks to the urine diversion system that separates liquids from solids
We have good news! You can convert your Cuddy or Cuddy Lite toilet into a dry flush toilet with our S1 Dry Flush Adapter Kit.
Our plug-and-play kit comes with an S1 sealing mechanism, solids bin, battery pack, control panel with housing, power connector, and power cable (adapter not included).
A dry flush toilet is a type of portable toilet that operates without water, chemicals, or composting.
Instead of using water to flush and move contents to a holding tank, it uses a dry system like a bagging or sealing mechanism, sometimes powered by a compressed air system, to encapsulate and isolate waste immediately after use.
Our S1 Dry Flush Sealing Toilet is a perfect example of a true dry flush toilet. It’s portable, eco-friendly, and ideal for off-grid living.
Not all dry flush toilets work the same way. Broadly, there are two main types:
Twisting-style dry flush toilets use a continuous liner inside a cartridge. Each time you flush, the liner twists and wraps the waste to contain odors.
It’s a simple and effective system, but because the liner is one continuous piece, you can’t empty it mid-use. Even if you’ve only gone a few times, you’ll need to remove the entire cartridge when it’s time to empty—making it less flexible and more wasteful than other systems.
These toilets also require a pee powder or coagulant to gel liquids, since they don’t separate urine from solids.
Heat-sealing systems use a battery-powered mechanism to seal each use into an individual hygienic package. Each flush creates a separate, odor-free pouch that can be removed independently - so you can empty it at any time without wasting unused liner material.
Like twisting dry flush toilets, most heat-sealing designs are intended for both liquids and solids together, meaning they also require a pee powder to solidify urine before sealing.
The S1 isn’t just another dry flush toilet. It’s the first to combine push-button sealing with urine diversion, keeping things cleaner, drier, and smell-free.
Unlike other systems that rely on harsh chemical powders to mask moisture and odor, the S1 needs none of it. No powders, no chemicals, no guesswork. Our built-in separation and sealing system locks solids in an odor-proof liner. No mixing, no mess, and nothing extra to pack.
Cleaner. Simpler. Smarter.
Not if they’re well designed—like the S1. Sealing or separating mechanisms prevent odors from escaping.
Absolutely! The S1 was practically made for it. It’s compact, portable, and doesn’t need hookups.
No. Dry flush = sealing toilet that seals waste for disposal. Composting = begins breakdown but needs time to become compost.
Yes, but always check local disposal rules, especially for bagged matter.
If you’re dreaming of a bathroom setup that’s clean, odor-free, and totally independent from plumbing or power grids, a dry flush toilet might just be your perfect throne.
