The Thetford Porta Potti is the UK's best-selling portable cassette toilet. It is simple, reliable, and available at every camping shop in the country.
Verdict
The Porta Potti is the best option for weekend van lifers or those on a tight budget. For full-time van life, a composting toilet is better. Recommendation: Porta Potti 365 (£90). The best balance of price, capacity, and features.
Models
| Model | Fresh Tank | Waste Tank | Price |
|---|---|---|---|
| Porta Potti 145 | 10L | 10L | £65 |
| Porta Potti 365 | 15L | 21L | £90 |
| Porta Potti 565E | 18L | 21L | £150 (electric flush) |
| Porta Potti Qube | 10L | 12L | £55 (compact) |
Porta Potti vs Composting
| Factor | Porta Potti | Composting Toilet |
|---|---|---|
| Cost | £55-150 | £250-400 |
| Installation | None (portable) | Permanent mount |
| Emptying | Chemicals + water dumping | Dry solids + liquids |
| Odour | Chemical smell | Earthy (coir) |
| Capacity | 20-40 flushes | 2-6 weeks solids |


