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A Urine-Separating Toilet Uses No Water
And Produces No Sewage

By: Ezra Plank


There are many different types of toilets to consider when doing a home renovation. Low flush toilets, compost toilets, and urine-separating toilets are just a few of them. With more and more people looking for ways to reduce their carbon footprint, being green is becoming a way of life.

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  • Waterless urine separating design
  • Creates dry compost
  • Extraordinary holding capacity
  • Hand crank agitator in base for faster composting
  • no holding tank and no pumpouts
  • User friendly, easy installation

A urine-separating toilet is similar to a traditional household toilet, in that it has a bowl, and an actuator that provides the flush. The big difference is that a urine-sepearting toilet is a waterless toilet. It has a paper bowl-liner that carries solid matter to the solids tank.

The solid matter is treated just as it is in a compost toilet. It is made non-offensive by agitation, desiccation and decomposition. There is a 12 volt fan that is used to provide the constant pressure required to pull out any moisture. Urine is kept in a smaller tank, which can hold four days worth of liquid, if the toilet is used exclusively by one person.

Chinese toilet plastic urine diversion squatting pan (in show room) by Sustainable sanitation, on Flickr
Urine-diverting squat toilet

Benefits of this innovative toilet include less maintenance, no clogs, and no odor problems. Since a urine-diverting toilet doesn't use pipes to flush away waste, there is nothing to clog up. The toilet is simply designed and don't use moving parts, so it's low-maintenance.

Indian toilet slab by Sustainable sanitation, on Flickr
Urine-diverting squat toilet
with hand-washing bowl

Very little power is needed to run the toilet. Although there is a constant running fan, it draws only .08 amp. In fact, a solar vent can be used to reduce power usage, which is another way to save a little energy.

Roediger NoMix toilet (urine diversion flush toilet) by Sustainable sanitation, on Flickr
Urine diversion flush toilet

A urine-separating toilet is easy to install because it is usually all in one unit. Since it doesn't require any harmful chemicals, it's safer for the environment, and for our future.

The simple design of these toilets means that they are predictable and reliable to own and use. They are also a more economical choice since they cost a fraction of what an entry-level holding tank system costs. If you haven't yet considered an eco toilet, perhaps you should. A urine-separating toilet is a great way to go green and save green.