Thetford Porta Potti 165 Reviewed & Tested

Thetford Porta Potti 165 Review

Thetford Porta Potti 165 toilet will be used year-round, full-time in our cabin. I’ve only had it for a couple of days, but I’ve found it to be well-manufactured and durable. It’s the exact height of a household toilet, with a normal oval deep toilet bowl. It is a comfortable portable toilet at a pleasant altitude and has a large waste tank.

Thetford offers a varied choice of portable toilets with their Porta Potti range. The Porta Potti 165 that we used combines the comfortable design characteristics of the models in the series. It features a bellows pump-type flushing system and a waste tank with a capacity of 21 liters, which provides a comfortable and ample capacity.

Thetford Porta Potti 165 Review

Thetford Porta Potti 165 review

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Main Features:

  • Flush: manual pump with
  • Idler Material tank: 21 liters
  • Clean water tank: 15 liters
  • Maximum load: NC
  • Fill indicator: no
  • Large waste tank (21 liters)
  • Very good seating and user comfort
  • A very good manufacturing quality
  • Efficient flush mechanism
  • Easy to carry
  • High price, even if the quality justifies it
  • No indicator for either tank

Design and Ergonomics

As is often the case with the vast majority of Thetford products, the Thetford Porta Potti 165 demonstrates high-quality craftsmanship. From the first contact, it reveals a robust construction, ready to withstand regular use of product chemicals. While it may be relatively expensive to purchase, the investment comes with real guarantees regarding its durability.

On the other hand, this toilet is appreciated for its portability, measuring 41.4 x 38.3 x 42.7 cm and weighing 3.9 kg. It features front and rear handles, which facilitate transport and provide valuable assistance when emptying. In terms of comfort, the Thetford Porta Potti 165 lives up to expectations. The seat is at the right height (40.8 cm), making it suitable for use by both adults and kids. The small storage provided for the roll of toilet paper is very practical.

Specifications and Features

Previously known as the Porta Potti Qube, the Porta Potti 165 portable toilet comes with a 21-liter waste holding tank, complemented by a 15-liter clean water compartment. This configuration provides an interesting operating capacity, especially for your outdoor family activities.

However, neither of its two tanks has a fill indicator. The manual flush with a piston pump, on the other hand, is effective. The design of this toilet is such that it prevents the spread of bad odors. Given that the Thetford Porta Potti is a portable toilet, you have the option to add chemical additives. These serve to reduce bad smells and dissolve waste, thereby increasing its capacity.


Ultimately, despite its higher initial cost, the Thetford Porta Potti 165 is a portable toilet that we recommend due to its robust construction and large waste tank. Like the other Porta Potti models, it offers an appreciable level of comfort and operating capacity that make it a companion of choice for your outdoor adventures.

Frequently Asked Questions

How often do you need to empty the waste tank?

With a family of four (2 adults and 2 kids aged 7-11), the waste tank only needed to be emptied about every 3rd day during camping trips.

How effective are chemical additives in reducing odors?

The use of Walex Porta-Pak chemical additives proved highly effective in minimizing odors, both during use and the dumping/cleaning procedure.

Can it be used as a permanent solution at home?

Yes, some users utilized the Porta Potti 165 as a portable potty in their garage due to the challenges of connecting regular sewer lines to their septic system in a rural area.

How was the experience in terms of smell and leakage?

We consistently reported minimal to no smell during use and praised the product for not leaking. The flush was noted as super quiet.

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