When the earthquake and tsunami hit us, our water and sewer systems will be damaged. When this happens, we will need toilets that are safe and function well for months until the sewage and water systems are restored.  The two bucket system used by EVC in its WaSH class is great … but wouldn’t it be nice to have a single-seat toilet where you can pee and poo at once?

We have studied dozens of designs from all over the world, and come up with this*:

It can be made locally, inexpensively, from standard materials … except the special separating part.  Even that could be made locally, if an enterprising person wanted to go into “business” …. recycle and mold waste plastic into urine separators, and cutting the parts — ready to assemble!

Design Benefits of this Separating Dry Toilet:

  • easy to construct of readily available parts
  • most parts store flat, for years – ready to assemble when needed
  • special urine diverter could be made locally ((a cottage business, using recycled plastic)
  • Safely stores only what is necessary:
    • 5/6 of human waste is Urine – which smells!  That goes directly into soil (a soak pit)
    • 1/6 of waste is Poo – it’s mostly water – when dried it shrinks & is a good soil amendment
      with lime & organic cover material, there is no smell – bacteria dies off, poo starts drying out
  • during disaster recovery, for months, drying poo is easily stored in neighborhood boxes
  • the boxes can be collected and processed by NB Wastewater Agency
  • retail versions cost $300 to $2000 – this model is cheaper, made from local materials
  • this design brings “best ideas” from many similar toilets used in USA, Europe, New Zealand etc.

Note the Terms: “urine separating”, “dry toilet” or “dehydrating toilet”

For more info, or to make your own, contact the WaSH team:  WaSH@EVCNB.org.

*New Sanitary Urine-Separating Dry Toilet
Co-Designed by Stew Martin & Evan Solley
Constructed by Evan Solley
½ sheet ply, ½ of 2×4″x8′, other parts
Separett 500 Privy insert.

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