Porta Potti - Cassette Toilet
The porta potti/cassette toilet are two names for similar
devices which provide toilet facilities where none are available.. The porta
potti, just as the name implies is portable and can be placed anywhere. The
cassette toilet is an option on many pop up campers and when purchased is
attached to the pop up in a fixed location. Both of them use a similar system
where a holding tank is removed for transport to a dump station (or into the
sewer connection on site if available).
As most of our camping takes place in remote
areas of National Forest land, bath/shower houses are not available and we have
to bring our own facilities. As our first pop up did not have it's own
facilities, we had to make other arrangements.
When the nature called, we needed a place for
this purpose. We saw a tent and potti at the campsite of Nancy Rappa, of
Pop-Up-Times fame and decided this was the way we would go.
World had a sale on the Thetford
Porta Potti 135, (2.6 gal fresh water 2.6 gal waste) for only $58, what a deal!
For a little privacy, we wanted a tent, but the tent Nancy
used was around $200. I found a tent at Campmor,
which is actually made for a Pett Portable Toilet by Phillips Environmental Products, Inc. It is sold as both a system
with the toilet, or alone to be used with a toilet from any manufacturer.
It is Campmor Item
The tent has a large pocket in the rear which will hold both a
roll of toilet paper as well as "reading material" for those that need
it. Additionally it has very large screened windows for ventilation.
Here are a couple of shots taken at our campsite.
All photos are thumbnails,
click to see a larger view
To the left you see the tent set up at the end of our
A close up of the inside
The photo to the left shows how we normally set up the
potti tent behind the back bunk. This photo was taken at Fort
Wilderness at Walt Disney World.
Here is the potti tent with the stand explained below.
My Potti Stand
The one thing I did not like about the porta potti was that is
is several inches shorter than the "normal" facilities found in your
home. With less than $10 in wood, I built this light stand for the porta
potti to sit on, bringing it up to a comfortable height. Yet to be
completed in this project is a couple of coats of paint that will endure the use
it will see. Yes, this is what campers do during the winter when camping
is not an option.
Here is the stand in it's "raw" form.
Here is the stand after painting. The color is "Dusty Canyon".
Here is the completed project. Now the potti
"sits" at a more normal height.
After the trip, emptying was a breeze. We just stopped
by a Forest Service campground and dumped into a pit toilet.
Operation of a Porta Potti
The porta potti is a simple device to use and complete
instructions can be found on the Service
Information for Portable Toilets page of the Thetford web page.
In our 2005 Niagara, we have a nice
cassette toilet. No more need to set up the tent and carry the stand with
us. When the time comes to empty it just open a door on the side of the
pop up and pull out the cassette.
Carry it to the dump station and empty the contents.
You can find a full description on the Thetford
Chemicals & "Stuff"
Chemicals and toilet tissue are available for your
These chemicals assist in breaking down the contents
of the potti which aids in
an easy and clean disposal. Specially designed toilet tissue is available
which breaks down quickly and does not clog the unit. Use of "home
made" solutions may damage the seals or plastic parts of the unit so their
use is not recommended. Read the owners manual of your potti as some manufactures
have you add the chemicals to the fresh water holding tank while others have you
add them to the waste holding tank.
Revised: May 08, 2007