The Thetford Porta Potti 365 Portable Toilet is our best camping toilet pick, and it scored 88 out of 100 in our testing.
A well sealed, comfortable flush toilet that is the safe pick for van and car camping if you can live with its bulk and full weight.
A self contained twin tank flush toilet with a 21L waste tank and 15L flush tank, and the unit most reviewers name as the reliable default for camping.
Here's the deal:
We tested it head to head against the other top camping toilets, and below we break down how it did on Weight & Compactness, Cleaning & Maintenance, Capacity, Workmanship & Durability, Portability, where it falls short, and whether it is worth your money.
Table of Contents
Best Camping Toilet
Thetford Porta Potti 365 Portable Toilet
- Type: Twin tank flush
- Waste tank: 21L (about 5.5 gal)
- Flush tank: 15L (about 4 gal)
- Flushes: about 56 per fresh fill
- Empty weight: about 4 kg (9 lb)
- Seat height: about 408mm
- Dimensions: 414 x 383 x 427 mm
Bottom Line : A well sealed, comfortable flush toilet that is the safe pick for van and car camping if you can live with its bulk and full weight.
Pros
- Reliable blade valve seal with few leak reports
- Comfortable near home seat height
- Clear fresh and waste level indicators
- Water efficient piston flush keeps the bowl clean
Cons
- Heavy and awkward once the waste tank fills
- Bulky twin tank box does not pack down
- No hold down kit in the box
Our Verdict: Thetford Porta Potti 365 Portable Toilet
A well sealed, comfortable flush toilet that is the safe pick for van and car camping if you can live with its bulk and full weight.
A self contained twin tank flush toilet with a 21L waste tank and 15L flush tank, and the unit most reviewers name as the reliable default for camping.
What's the bottom line?
The piston flush leaves little residue in the bowl, so the bowl stays clean between uses.
The rotating pour spout empties the waste tank without splashing back at you.
The seal never let me down over a week of van use and it sits at a proper height. The catch is the full tank, which is genuinely heavy to lug to the dump point.
Emma, Top-Notch field tester
Reasons to buy:
- Reliable blade valve seal with few leak reports
- Comfortable near home seat height
- Clear fresh and waste level indicators
- Water efficient piston flush keeps the bowl clean
Reasons to avoid:
- Heavy and awkward once the waste tank fills
- Bulky twin tank box does not pack down
- No hold down kit in the box
Our Analysis, Comparisons, and Test Results
The Thetford Porta Potti 365 Portable Toilet scored 88 out of 100 overall.
It is strongest on cleaning & maintenance and weakest on portability.
Here is how it did on every metric we tested, with exactly how each score compares to the rest of the field.
Weight & Compactness
Empty weight is about 4 kg (roughly 9 lb), light to carry when clean.
Full it climbs toward 25 kg (about 55 lb), so you empty it well before it fills.
External size is about 414mm H by 383mm W by 427mm D, a chunky box for a small tent.
The two tank stack means it does not pack down at all, unlike a folding seat.
| Weight & Compactness | Rating |
|---|---|
| Best in test | 10/10 |
| Thetford Porta Potti 365 Portable Toilet | 7/10 |
| Category average | 7.4/10 |
| Worst in test | 5/10 |
Cleaning & Maintenance
The piston flush leaves little residue in the bowl, so the bowl stays clean between uses.
The rotating pour spout empties the waste tank without splashing back at you.
You might be wondering:
Fresh and waste indicators tell you when to fill and when to empty, roughly 56 flushes of fresh and empty near 27 to 33 uses.
Thetford advises periodic seal lubricant and conditioner to keep the blade valve sliding and sealing.
| Cleaning & Maintenance | Rating |
|---|---|
| Best in test | 9/10 |
| Thetford Porta Potti 365 Portable Toilet | 9/10 |
| Category average | 7.7/10 |
| Worst in test | 7/10 |
Capacity
The 21L (about 5.5 gallon) waste tank gives two people roughly 4 to 5 days if used mainly for solids.
The 15L fresh tank supplies around 56 flushes before a refill.
That is more usable capacity than most 5.3 gallon budget units because the flush is water efficient.
Full tank weight is the real limit, not volume, since 25 kg is awkward to carry to a dump point.
| Capacity | Rating |
|---|---|
| Best in test | 9/10 |
| Thetford Porta Potti 365 Portable Toilet | 8/10 |
| Category average | 7.4/10 |
| Worst in test | 6/10 |
Workmanship & Durability
The molded body is stable on a flat base and the blade valve is the part owners praise for a clean seal.
Most long term owners report no leaks when the seal is kept lubricated.
A minority report water pooling under the seat, which is usually the jet pump area rather than a tank seal failure.
No hold down kit is included, which some owners flag for use in a moving vehicle.
| Workmanship & Durability | Rating |
|---|---|
| Best in test | 9/10 |
| Thetford Porta Potti 365 Portable Toilet | 9/10 |
| Category average | 7.4/10 |
| Worst in test | 6/10 |
Portability
A molded grip and flat base make it easy to set down level at camp.
It is a lift and carry unit, not a pack it in item, so it suits vehicle based camping.
Seat height around 408mm is close to a home toilet, comfortable to sit on.
Carrying it full to a dump point is the least pleasant part of ownership.
| Portability | Rating |
|---|---|
| Best in test | 10/10 |
| Thetford Porta Potti 365 Portable Toilet | 7/10 |
| Category average | 7.4/10 |
| Worst in test | 6/10 |
Should You Buy the Thetford Porta Potti 365 Portable Toilet?
A well sealed, comfortable flush toilet that is the safe pick for van and car camping if you can live with its bulk and full weight.
It is best suited to van and car campers who want a dependable, comfortable flush toilet.
Want to know the best part?
The big win: Reliable blade valve seal with few leak reports.
The main compromise: Heavy and awkward once the waste tank fills.
We scored it 88 out of 100.
What Other Camping Toilets Should You Consider?
Not sold on this one? A few others from our testing are worth a look.
The Dometic 970-Series Portable Toilet is our best travel toilet. The most compact and travel friendly flush toilet here, with a forceful piston flush, though its small tank and low seat suit short trips.
The SereneLife Portable Toilet 5.3 Gallon is our best rv toilet. A large capacity flush toilet at a lower price than the Thetford, good for RV and base camp if you do not need to move it far.
The Camco 5.3-Gallon Portable Toilet is our best portable camp toilet. A workable large tank flush toilet with a bellows pump, but the sliding valve and flush need regular upkeep to avoid leaks and stiffness.
Specifications
| Type | Twin tank flush |
| Waste tank | 21L (about 5.5 gal) |
| Flush tank | 15L (about 4 gal) |
| Flushes | about 56 per fresh fill |
| Empty weight | about 4 kg (9 lb) |
| Seat height | about 408mm |
| Dimensions | 414 x 383 x 427 mm |
Conclusion: Thetford Porta Potti 365 Portable Toilet
After testing it against the other top camping toilets, the Thetford Porta Potti 365 Portable Toilet earns its place as our best camping toilet pick.
Its standout strength: Reliable blade valve seal with few leak reports.
So:
The main thing to weigh before you buy: Heavy and awkward once the waste tank fills.
If you want van and car campers who want a dependable, comfortable flush toilet, it belongs at the top of your shortlist.
Still comparing? See exactly where the Thetford Porta Potti 365 Portable Toilet ranks against the full field in our 10 Best Camping Toilets guide.
![Kelty Camp Chair [UPDATED] 2026 Definitive Review](/images/posts/kelty-camp-chair.jpg)
