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Case Studies – Plumbing Systems

  • All
  • 6-story building with Composting Toilets
  • Air Admittance Valves
  • Commercial Solar Composting Toilet
  • Greywater Infiltration in the Public Right-of-Way
  • Heat Pump Water Heater - CO2 Refrigerant
  • Indoor graywater reuse to flush toilets
  • Living Wall
  • Natural Organic Recycling Machine
  • Net-Zero Water
  • Non-chlorine UV purification system
  • non-UL listed
  • Rainwater Harvesting for Indoor Use
  • Rainwater harvesting for potable use
  • Site-built Design Composting Toilet
  • superior heat pump
  • Toilet Flushing
“Off Grid” Net Zero Water at Birch Case Study House
CO2 Heat Pump Water Heater in Madrona Passive House
Commercial Composting Toilet at Lewis & Clark College
Commercial Potable Rainwater System at Brock Environmental Center
Composting Toilets at the Six-Story Bullitt Center
Emerald Star Home is Net-Positive Energy in Seattle, WA
Graywater Reuse in the Apartments at Bud Clark Commons
Graywater Reuse to Irrigate a Living Wall at Bertschi School
Greywater Treatment & Infiltration at the Bullitt Center
Harvesting Rain to Drink at Bacon-Brenes Home spurred New Codes
Human Waste Treatment and Water Reuse at Hassalo on Eighth
Net Zero Water, Net Zero Energy Full Plane Passive House in Portland
Plumbing Air Admittance Valves at FutureFit Home
Rainwater Harvesting for Potable Use at the Bertschi School
Sanden CO2 Refrigerant Heat Pump Water Heater at FutureFit Home
State-approved vs. Site-built Composting Toilet in Birch House
Washington Middle School Rain Water Harvesting