Thetford Porta Potti 92306 Portable Toilet Review (2026)

Electric flush and how it works

The 92306 is Thetford's Porta Potti 565E, and unlike the brand's simpler manual piston-pump models, this version uses a battery-powered electric flush operated with a single button, running on AA batteries rather than a hand pump. That makes flushing easier for anyone with limited hand strength and gives a more consistent, home-like flush action than repeatedly working a piston by hand. The trade-off is that the electric flush depends on batteries staying charged, so campers should pack spares on longer trips rather than assume the flush will always work, something a fully manual model does not need to worry about.

Tank capacities and usage between empties

Thetford specifies a 4.0-gallon fresh water tank for flushing and a 5.5-gallon waste holding tank, rated for roughly 56 average flushes per fresh water fill according to the manufacturer. Those capacities put it in a comfortable middle ground for a portable cassette toilet: enough capacity for a weekend group trip or several days of use by one or two people before the waste tank needs emptying, without the tank becoming too heavy to carry to a dump station. The waste tank detaches from the base independently of the fresh water section, so it can be carried to a dump station or a standard toilet without disconnecting the whole unit.

Comfort and seat design

Thetford builds the 565E with an elongated, home-style seat and bowl shape rather than the smaller, more basic seat found on bucket-style camp toilets, and the compact overall footprint of roughly 17.75 by 15.25 by 17.625 inches keeps it manageable in a car, van or small RV bathroom space. A built-in tank level indicator lets users check the waste tank fill level without opening the unit, and an integrated toilet paper holder and carry handle round out the comfort-focused details that separate this model from more basic portable toilets. These design choices target campers who want something closer to a normal bathroom experience rather than the most compact or lightweight option available.

Odor control and required maintenance

The sealed waste tank and flush-and-seal design genuinely control odor better than an open bucket-style toilet, since waste stays sealed in the tank between uses rather than sitting exposed. That said, Thetford's own guidance calls for chemical holding tank additives to break down waste and control odor effectively, meaning this is not a maintenance-free toilet; campers need to buy and use the recommended chemicals and empty the tank at an appropriate dump station or toilet rather than anywhere convenient. Skipping the chemical treatment or letting the tank sit too long between empties is the most common complaint with cassette toilets in this category, not specific to this model.

Who should buy this toilet

The 92306 fits car campers, van dwellers and small RV or boat owners who want a genuinely comfortable, flushable toilet without installing a permanent RV bathroom fixture. Its electric flush and home-style seat height make it a noticeably more pleasant option than bucket-style or fully manual portable toilets for anyone prioritizing comfort. Campers who want the simplest, most failure-resistant option with no batteries to manage should consider Thetford's manual piston-pump models instead, and anyone unwilling to buy chemical additives or manage tank emptying at proper facilities should weigh that ongoing commitment before choosing any cassette-style portable toilet, including this one.

Frequently asked questions