Thinktank Waterless Toilet
#20 in Urine-divertingFull review
A household style diverting toilet for cabins and tiny homes with a urine drain, the one to pick if guests need to stand to pee.
Amazon $1,179$1,179
The Thinktank Waterless Toilet is the better toilet overall, rated 3.1 to 3.0. The Thinktank Waterless Toilet leads on capacity. The OGO Origin Compact wins on value. The OGO Origin Compact costs $279.01 less ($899.99 vs $1,179).
OGO Origin Compact
#21 in Urine-divertingFull review
For tight van and boat bathrooms that can’t fit a side crank: the smallest footprint here with push-button mixing.
Amazon $899.99$899.99
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Thinktank Waterless Toilet for capacity (about 50 uses per solids bin, urine can drain vs about 25 uses per solids bin, 2.4 gal urine bottle).
- Choose the OGO Origin Compact for value ($899.99 vs $1,179).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every urine-diverting toilet; a clear win is highlighted. How we rank explains each one.
| Factor weight | Thinktank Waterless Toilet | OGO Origin Compact |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 30% | 17 $1,179 | 43 $899.99 |
| Capacity 25% | 39 about 50 uses per solids bin, urine can drain | 28 about 25 uses per solids bin, 2.4 gal urine bottle |
| Power 15% | 50 power draw not published (neutral score used) | 50 power draw not published (neutral score used) |
| Certification 15% | 50 NSF/ANSI 41 certification not stated (neutral score used) | 50 NSF/ANSI 41 certification not stated (neutral score used) |
| Warranty 15% | 100 6-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Thinktank Waterless Toilet | OGO Origin Compact | |
|---|---|---|
| Capacity | ||
| Type | Urine-diverting | Urine-diverting |
| Uses per solids bin | 50 uses | 25 uses |
| Urine bottle | - | 2.4 gal |
| Urine drain option | Yes | No |
| Agitator | No | Yes |
| Power and venting | ||
| Power | 12V/120V | 12V |
| Vent size | 3 in | - |
| Build | ||
| Seat height | 19 in | - |
| Dimensions | 18 x 23.2 x 19 in | 16 x 15 x 18.38 in |
| Weight | 30 lb | 28 lb |
| Material | Rotationally molded plastic | Polypropylene |
| Warranty | 6 years | - |