Toilettes portables Porta Potti 335
How do you use the Porta Potti 335 portable toilet?
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2. Fill the clean-water tank
The upper tank holds the flush water.
Fill it with clean water and add Aqua Rinse Plus additive.
This tank supplies water to flush the bowl: no connection to a water supply or drainage system is needed.
The seat and lid are removable.
1. Prepare the waste tank
Separate the two tanks by releasing the catch at the back.
Pour 3 litres of water into the waste tank, then add the recommended dose of Aqua Kem Blue additive.
This additive controls odours and makes emptying easier.
Follow the product's instructions for use, then put both tanks back in place.


3. Flush after every use
Open the valve using the handle.
Then operate the flush pump: three or four short flushes are enough.
Depending on the model, the pump is a piston pump (1), bellows pump (2) or electric pump (3); the electric pump flushes automatically.
Close the valve again: it seals off the waste tank and keeps the air fresh.
4. Check and maintain
Depending on the model, a level indicator shows when the waste tank needs emptying.
Check it regularly and before every departure.
For cleaning, avoid ordinary household cleaners: they can permanently damage the seals.
Instead, choose cleaning products designed for these toilets.
5. Empty the waste tank
Take the tank to a campsite disposal station or an authorised disposal point.
Remove the cap, then turn the emptying spout downwards.
Hold down the vent button with your thumb to prevent splashing.
Then empty the waste tank.


6. Set off without leaks
To prevent leaks while driving, follow three guidelines.
Do not leave water in the bowl.
Fill the flush-water tank to no more than half full.
Fill the waste tank to no more than three-quarters full.
Porta Potti 335 portable toilet – Thetford: compact comfort for your campervan
Enjoy complete toilet independence with the most compact model in the Thetford range, designed specifically to fit into small spaces such as campervans and converted vans.
Its ingenious, fully self-contained design means you need no water or electricity connection, while providing a comfortable seat for your road trips. Its efficient manual piston pump delivers a powerful, hygienic bowl rinse with every use. The swivelling emptying spout and integrated vent button make emptying simple and splash-free. Robust yet lightweight, this toilet is easy to carry and can be securely fixed in place with the included floor hold-down kit, ideal for winding roads.
Remember to use Thetford Aqua Kem Blue toilet additive and special toilet paper for easy, odour-free maintenance.
Which Porta Potti portable toilet model is right for you?
| Features | Porta Potti 145 | Porta Potti 165 | Porta Potti 335 | Porta Potti 345 | Porta Potti 365 | Porta Potti 565E |
|---|---|---|---|---|---|---|
| Comfort level | ●●●○○ (3/5) | ●●●○○ (3/5) | ●●●●○ (4/5) | ●●●●○ (4/5) | ●●●●○ (4/5) | ●●●●●+ (5/5+) |
| Size | Medium | Large | Small | Medium | Large | Large (luxury) |
| Dimensions (H x W x D) | 330 x 383 x 427 mm | 414 x 383 x 427 mm | 313 x 342 x 382 mm | 330 x 383 x 427 mm | 414 x 383 x 427 mm | 448 x 388 x 450 mm |
| Seat height | 324 mm | 408 mm | 308 mm | 324 mm | 408 mm | 443 mm |
| Flush | Bellows pump | Bellows pump | Piston pump | Piston pump | Piston pump | Electric |
| Waste tank level indicator | No | No | Yes | Yes | Yes | Yes |
| Waste tank capacity | 12 L | 21 L | 10 L | 12 L | 21 L | 21 L |
| Fresh water tank level indicator | No | No | No | No | No | Yes |
| Fresh water tank capacity | 15 L | 15 L | 10 L | 15 L | 15 L | 15 L |
| Net weight | 3.6 kg | 3.8 kg | 3.3 kg | 3.8 kg | 4.0 kg | 5.0 kg |
| Additional information | - | Optional hold-down kit (Hold Down Kit) |
Hold-down kit (Hold Down Kit) |
- | Optional hold-down kit (Hold Down Kit) |
Toilet roll holder Optional grey floor mount |
PORTA POTTI 335 PORTABLE TOILET – THETFORD TECHNICAL SPECIFICATIONS
- Product type: Ultra-compact portable chemical toilet.
- Waste tank capacity: 10 L.
- Fresh water tank capacity: 10 L.
- Seat height: 30.8 cm.
- Flush system: Manual piston pump.
- Dimensions (H x W x D): 31.3 x 34.2 x 38.2 cm.
- Net weight: 3.3 kg.
- Maximum load: 120 kg.
- Level indicator: Included for the waste tank.
- Safety: Hold Down Kit (HDK) floor mounting kit included.
- Material: Robust, easy-to-clean ABS plastic.
Need to replace your Porta Potti’s manual pump? You’re in the right place!
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