We believe every occupied space deserves to be safe from the hazards hiding in its own plumbing.
Green Drain is not a product company that happens to care about safety. We are a safety company that happens to make a product.
Green Drain was founded in 2015 on the conviction that drain protection should work passively - holding the seal without a water supply, without electricity, without intervention. From that conviction comes the work: research on the failure modes of building drainage, third-party testing, code-body engagement, and a patented waterless trap seal that puts the conviction into operation.
We partner with facility operators, infection-control teams, code authorities, and laboratories who share the same view of what a building's drains should be.
Sink trap or floor drain in clinical setting,
or biofilm/colony imagery from research
~720 x 900px
Can a passive seal interrupt drain-borne pathogen transmission?
Hospital outbreaks have been traced to colonized sink traps and floor drains, where multi-drug-resistant organisms persist in biofilm. Food processing facilities classify drains as Zone 3 environmental monitoring surfaces. Sewer-side bioaerosols move through any drain whose P-trap has gone dry.
Research. SGS, an independent global testing laboratory, measured viral aerosol blockage on the GD3: greater than 99.9% retention. NSF/ANSI 2 listed the contact materials as food-equipment safe. HACCP International endorsed it for food handling environments.
Status. We maintain a public library of 58 peer-reviewed studies on drain-borne contamination. The library is open and updated continuously.
SELECTED STUDIES
Silicone valve in housing, both states
Showing seal closed and water flow open
~720 x 900px
What replaces a P-trap's seal when it dries out?
A P-trap depends on a small column of water to block the connection between a building and its sewer system. In any drain that goes unused for days or weeks, that water evaporates. The conventional fix, a water-fed trap primer, calcifies, corrodes, and fails without notice.
Research. Green Drain is certified to ASSE/ANSI 1072, the recognized North American standard for barrier-type trap seal devices. Lab record: 32g opening force (well under the 113.4g maximum), 73 GPM flow capacity, 2,500-plus operating cycles, greater than 96% evaporation reduction.
Status. cUPC and IAPMO R&T listings cover U.S. and Canadian plumbing codes. CE / ETA-Danmark covers the European Union. WaterMark covers Australia and New Zealand. The device is also registered as a Class I medical device under EU MDR.
SELECTED REPORTS
Wide view of commercial floor with multiple drains,
or trap-primer mechanical hardware
~720 x 900px
What does it cost to keep a drain seal wet for forty years?
A trap primer draws from the building's water supply to refill drain seals on a schedule. Per drain, that consumption is ten to thirty gallons per year. Across a building's lifecycle, the figure runs into the hundreds of thousands of gallons, consumed for one purpose: keeping a seal wet.
Research. Our public Water Savings Calculator models facility-level consumption against U.S. EPA WaterSense data and regional rate structures. Durability testing at -40°F to 100°C and across a wide pH range confirms multi-decade service life on a single device.
Status. Specified in LEED projects pursuing Water Efficiency credits. Adopted across building portfolios reporting under GRESB and corporate ESG frameworks.
The team behind Green Drain.
Green Drain operates across North America, Europe, Asia-Pacific, and Australia, with managing directors in each region. The team includes engineers, infection-control consultants, and code experts who work alongside facility managers, plumbers, and specifiers.
Meet the teamOpen the work.
The research, the certifications, the calculator. All public.