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Waterless and Odourless Toilet Systems

When looking for a new toilet system there are several boxes that need to be ticked. For example, you may be concerned about water consumption so you might be looking for a system that uses little to no water. This is particularly true if you live in a remote area or a place where water isn’t readily available.

The other box that often needs to be ticked but isn’t talked about all that much is having a toilet system that doesn’t smell. Sometimes people are embarrassed to ask about composting toilets and if they smell or not. Well we’re going to be looking over composting toilets, their waterless nature and the fact that if used correctly are completely odourless.

No water – no smell

When taking into consideration a waterless and odourless toilet system, a composting toilet is one of the only solutions that uses no water and provides you with a usable product from what would otherwise be waste.

How a composting toilet uses no water

There are a few different types of composting toilets available and each one composts waste in slightly different ways. There are batch systems and continuous composting toilet systems and then you have a dry and micro flush system.

Technically the micro flush system isn’t a waterless toilet as it uses a small amount of water when you flush, however, our dry systems use no water at all.

The reason a composting toilet doesn’t need to use water is that the pedestal is located directly over the composting chamber. This way when waste is added to the composting chamber, the composting process that includes evaporating excess liquids through an exhaust fan can work on breaking down the waste into a safe, usable, topsoil-like product.

How a composting toilet remains odourless

Like your average backyard compost pile, when it’s healthy and maintained correctly there will be little to no smell from your compost bin. If your backyard compost bin smells rotten or ‘off’ then you know that something isn’t right and you may need to add organic materials or bulking agents, make sure it’s not too wet, ensure there are micro-organisms at work or check your organic materials (like kitchen scraps) vs bulking agents (like grass clippings or wood shavings, etc).

If a composting toilet starts to smell then you know that there’s something not quite right with your pile. This could be a range of different things and if you’re interested in finding out more, head over to our EcoLet website and read the article called Tips for composting toilets.

If you’ve got any additional questions about composting toilets, waterless toilets, how they work, if they smell or anything else, please feel free to call us on (07) 3889 6144.

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