Cassette out - conversion instructions | Cassette toilet conversion

Cassette out - conversion instructions | Cassette toilet conversion

Conversion instructions Cassette toilet

Here is a step-by-step guide to rebuilding the old cassette toilet. The aim is to install a partition toilet.

In this case, the small Trelino was installed. But after the old cassette toilet has given way, you can eventually (depending on the dimensions) install all partition toilets.

Jonas drives a Bavaria Camp Sol y Sombra van from 2005, in which the standard wet cell including cassette toilet is fitted. He provides us with these step-by-step instructions for converting the cassette toilet. The text is primarily from Jonas with small additions from our side. You can find more detailed information about Jonas in his blog: Setting forth - Aufbruch.

Instructions for converting a cassette toilet

Kassettentoilette umbauen
Kassettentoilette umbauen

As can be seen in the photos above, this cassette toilet, also called a bench toilet, is to be replaced.

Jonas would like to use a partition toilet in his van and for this purpose the old Thetford camper van toilet has become superfluous.

This is exactly the situation most people face when they want to convert their cassette toilet. Depending on the model installed, you will find everything from a smaller stand-alone cassette toilet to fully lined bathrooms.

Where do I start? Where are the screws hidden? Can only the cassette toilet be removed or does the entire wet cell have to be unscrewed?

These questions pose minor and major challenges. Some people do not dare to do it at all. But thanks to such conversion instructions, the individual steps become visible and thus more feasible.

Here you can see which steps Jonas has implemented. The instructions can certainly be applied to your cassette toilet. Otherwise, the team at MeineTrenntoilette.de is at your disposal. Please contact us.

Schrauben lösen der Kassettentoilette

 First, the cassette must be removed. Then you will see four screws at the bottom of the toilet, with which the toilet is fixed to the base plate of the camper.

It is best to loosen the screws with an extension from above through the open toilet hole. Or, like Jonas, through the service flap.

 

Banktoilette Kassettentoilette im Wohnmobil

After removing the four screws, you can take out the toilet as a whole. Make sure to remove the old silicone joints with a blunt knife or similar beforehand. After lifting out the toilet, the power cable for the electrical system must be cut and stripped.

Banktoilette Kassettentoilette von hinten nach Ausbau

Attention: In some campers, the cassette toilets also hang in a fastening hook at the back! In this case, lift the toilet up and out of the hook. This was not the case with Jonas, as the wheel housing is behind it. 

 

Banktoilette im Wohnmobil Bodenraum

Here you can see the four holes in the floor panel and behind them are the heating pipes and the wheel housing.

 

Banktoilette im Wohnmobil ausbauen - Holzfüße 

In order to install the floor plate for the new toilet, the substructure must first be chosen so that the heating pipes are not crushed. For this, Jonas cut two wooden beams and fitted them with two strong, recessed magnets. These then hold the new panel in place.
Banktoilette im Wohnmobil ausbauen - Maße

 

Now cut a base plate from, for example, OSB. For the Sol y Sombra, the dimensions are: 40 x 67 cm. The plate and the substructure are chosen so that they form one level with the shower tray cover.

 

Trelino als Alternative zur Banktoilette im Wohnmobil

Thanks to its low height, the Trelino fits under the washbasin.
 

Sperrholz Unterbau für Trelino im Wohnmobil

 

Jonas screwed wooden strips onto the OSB board to fix it in place. This keeps the Trelino in place. 

Trelino Einfassung aus Holz im Wohnmobil

The Trelino has a recess at the bottom, in the front area, for the urine tank. This is perfect for anchoring the toilet firmly. For this purpose, Jonas screwed together a wooden strip and sanded it until it fitted exactly into the recess. Jonas was able to test the construction extensively over a distance of 500 km. The Trelino stayed firmly in place, even on bumpy roads.

 

Trelino S in anthrazit
When in use, the composting toilet is simply pulled forward. This way you have plenty of space when using and emptying it.

 

Trelino Van Trenntoilette Trenneinsatz
The lid is simply leaned against the wall and cannot slip away due to the wooden strip.

Sperrholz Einfassung für Trelino im Wohnmobil

The hole next to the wheel housing is covered with a thin OSB board. Jonas has installed a switch for a 12 V fan here. This is to be mounted on the Trelino. The fan will be connected to the old SOG system and will vent the air to the outside if necessary. Until now, Jonas could not bring himself to cut a hole in the beautiful Trelino. 🙂

Everything you need to know about the composting toilet can be found here in our frequently asked questions.

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