Description
Thetford Porta Potti 335 – Small 92828
The Thetford Porta Potti Qube 335 is a compact, deluxe portable toilet designed for boating, camping, and recreational activities. Its small size allows it to fit conveniently under bunks or inside cupboards, making it ideal for limited-space environments.
Features
- Compact design perfect for storage in tight spaces such as under bunks or inside cupboards
- Different sizes and flushing systems distinguish the Porta Potti range, with variations in holding and flush tank capacities
- With average use, the waste tank can last 3 to 5 days before needing to be emptied
- Hygienic and simple waste removal via detachable waste tank with an integrated emptying spout
- Manual piston pump flushing system for reliable operation
- Compatible with Thetford’s specially formulated toilet additives and rapid-dissolving Aqua Soft toilet paper to control odors, reduce gas formation, and promote decomposition of solids
- 3-year warranty for peace of mind
Specifications
| Model | 92828 |
| Other Identifiers | 850-00820, T92828, 850-01001, T92831 |
| Dimensions (H x W x D) | 315 mm x 342 mm x 382 mm |
| Holding Tank Capacity | 10 Litres |
| Flush Water Tank Capacity | 10 Litres |
| Net Weight | 3.3 kg |
| Color | White |
| Flushing System | Manual piston pump |
Usage & Maintenance
To empty the waste tank, twist the integrated emptying spout outwards, unscrew the cap, push the vent button to allow air into the tank (this prevents splashing), and pour out the waste at an appropriate disposal point. Use Thetford toilet additives to suppress unpleasant odours and prevent blockages by promoting the breakdown of solids.
Frequently Asked Questions
- Can I get a replacement piston pump for this Porta Potti 335 and which model fits?
Yes, the replacement piston pump compatible with the Porta Potti 335 is model T25817-79. - Is a hold-down kit required or available for the Porta Potti 335?
A hold-down kit is available separately (model T92921-111) if you want to secure the toilet in place during transport or rough conditions. - How long can I use the Porta Potti before emptying?
With average use, the waste holding tank can last between three to five days before needing to be emptied. - What type of toilet paper should I use?
Use rapid-dissolving Aqua Soft toilet paper designed specifically for portable toilets to prevent blockages and maintain tank cleanliness. - Does the Porta Potti come with a warranty?
Yes, it includes a three-year warranty for manufacturing defects. - Can I use this toilet on a boat?
Absolutely. Its compact size and efficient manual flushing system make it ideal for boating, camping, or any recreational vehicle. - Are there any tips for odor control?
Regular use of Thetford toilet additives and prompt emptying will effectively control odors and gas build-up in the waste tank. - Is it easy to transport?
Yes. With a net weight of just 3.3 kilograms and a compact design, it is easy to carry and store.
Warning:
Always empty the waste tank at approved disposal points only. Do not flush chemicals other than recommended additives to avoid damage.
Boat Hut Insight
When selecting a portable toilet for your boat or camper, consider not only size but also how easy it is to clean and maintain while on the water or off-grid. Thetford’s Porta Potti Qube 335 nails this balance perfectly with its compact design and user-friendly emptying system. A humorous tip from experience — always keep an extra roll of their Aqua Soft toilet paper handy because once you’re out on the water, a quick dash to shore isn’t always an option! And yes, securing it with the hold-down kit can save you from unexpected ‘toilet turbulence’ during choppy rides. Small conveniences like these make your trip far more comfortable than you might imagine.
Also, remember that investing in quality additives not only keeps odors at bay but helps prevent costly plumbing issues down the line — a small price for peace of mind.


