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How to empty a composting toilet – the complete guide

An important part of having a composting toilet is of course emptying all that nutrient rich soil at the end. So how is the easiest way to do that? First here are some general guidelines and precautions:

  • Always wear a dust mask when dealing with toilet compost
  • Always wear latex, rubber or protective gloves 
  • Make sure to wash hands and clothes thoroughly after emptying
  • Compost can be heavy so get assistance if needed
  • If you’re burying compost make sure it’s at least buried 10cm deep
  • Don’t use compost from composting toilets on food plants or vegetables (fruit and nut trees are acceptable)
Caravan/Motor Home Models

Most eco toilets installed in motor homes are urine diverting which means you’ll have two chambers to empty. Toilets like the Mini and the Tiny have separate urine tanks that will need to be disposed of responsible, and solids chambers that are lined with a compostable bio bag. You’ll need to find a dump site while you’re travelling to empty these into. The bio bag is designed to break down in a moist environment so it is safe to dispose of the waste in an external composting bin as well if your end goal is still to get compost.


The Compost

For all systems, the guidelines for the compost once it is removed remain the same. You can add this compost to an existing compost pile, around fruit and nut trees, and over a garden of non-edible plants. We don’t recommend adding the compost to: edible plants such as herbs or vegetables, or flowers and plants used for edible seeds. The microbes work to remove the nasties from the compost but there is always the chance that, while the waste has been safely broken down, there may be small trace amounts of harmful pathogens. Better to be safe than sorry! If you’re leaving your compost on top of your garden bed or lawn, ensure you layer some soil on top so it doesn’t get picked up and moved around by people or animals walking across it. You can easily transfer these nutrients into your fruit and vegetable gardens by burying the compost (at a depth of 10cm) around your garden plots. 

And that’s it; it’s really very easy to empty a composting toilet chamber. And once your chamber is emptied you don’t have to worry about cleaning it out on the inside - in fact we recommend leaving a layer of the compost on the bottom to boost your next batch!

In the spirit of reconciliation, Ecoflo Wastewater Management acknowledges the Traditional Custodians of this Country. We pay our respects to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today. 




Ecoflo was the first company in Australia to sell composting toilets certified to the rigorous quality testing of Australian Standards. If you want to be certain your composting toilet has adequate capacity and is safe, you need a waterless composting toilet certified to the tough performance criteria of AS/NZS 1546.2:2008.

Shop our range of certified toilets here