Urine diversion is the critical component in creating low-cost, low-hazard, low-odor waterless toilets.  When urine mixes with fecal matter, excess ammonia create odor and toxic conditions in the waste.  When urine is diverted prior to mixing with fecal matter, it can be safely treated by onsite soil.  Fecal matter that hasn't been soaked with urine can be consumed by a wide range of invertebrates (worms, nematodes, and mites) without any bulking agent.  Humans are the only mammal on the planet to pee on their poo.  Toilet Tech urine diversion systems re-establish the natural diversion of urine away from fecal matter so that urine can fertilizer local plants and soil invertebrates can consume fecal matter, naturally.  We source separate our trash and recycling.  Its equally important to separate our bodily wastes.

Toilet Tech Solutions is a subsidiary company of Engineered Compost Systems (and affiliates) based in Seattle, Washington.  We are housed in a 20,000 square foot building complete with offices and manufacturing for a suite of technology hardware companies.

Peer Reviewed Publications by Dr. Geoff Hill (copies can be provided for educational purposes)


Hill GB, Baldwin S, Vinneras B (in press) Evaluation of Solvita compost stability and maturity tests for assessment of quality of end-products from mixed latrine style compost toilets. Waste Management, WM-12-1442R1.

Hill GB, Baldwin S, Lalander C (2013) The effectiveness and safety of vermi- versus conventional composting of human feces with Ascaris suum ova as model helminthic parasites. Journal of Sustainable Development 6(4).

Hill GB, Baldwin S, Vinneras B (2013) Composting toilets a misnomer: Excessive ammonia from urine inhibits microbial activity yet is insufficient in sanitizing the end-product. Journal of Environmental Management 119, pp. 29-35

Hill GB and Henry GHR (2013) The application and performance of urine diversion to minimize waste management costs in remote wilderness environments.International Journal of Wilderness Management 19(1), 26-33.

Hill GB and Baldwin SA (2012) Vermicomposting toilets, an alternative to latrine style microbial composting toilets, prove far superior in mass reduction, pathogen destruction, compost quality, and operational cost. Waste Management 32(10) 1811-1820.

Hill (Thesis) An Evaluation of Waterless Human Waste Management Systems at North American Public Remote Sites.  UBC, Vancouver.  Co-supervised by Dr. Greg Henry and Dr. Sue Baldwin.

Behind the Wall (BTW) Urine Diversion System

-Manufactured by Ecodomeo.com in France

-Award winning design

-Three conveyor lengths (short, medium, long)

-Two seat options (white fiberglass or stainless steel & wood)

-Foot pedal operated

-Stainless steel and high strength plastic parts.

Urine Treatment     (above and below ground systems possible)