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How StormTEE WorksSelf-cleaning Deflector Screens

StormTEE® litter control screens are ideally suited for the simple, affordable removal of trash/litter/debris and associated pollutants from stormwater flows in a variety of applications. These patented, self-cleaning deflector screens can be used alone or in conjunction with other devices, including the combination fine- particle separation and oil/water coalescing modular unit as part of a complete BioSTORM® stormwater treatment system. StormTEE® deflector screens are easy to install in both new construction projects and is perfect for retrofits too.

StormTEE® Benefit

  • Ideal for new projects or retrofit of existing systems
  • Easy to install, mounts easily in pre-cast concrete tanks and basins
  • Easy to maintain, requires only periodic removal of accumulated debris

Unique Design Characteristics

1. Self-Cleaning Screen and Swab Feature – The smooth exterior surface of the StormTEE® promotes the deflection of solids back into the tank. Any solids that may inadvertently become trapped in the angled slots can be easily dislodged from outside the tank with a few easy swipes of the built- in cleaning swab.

2. Custom Outlet Tee – All StormTEE®’s come with their own convenient and affordable outlet tee. Once the custom outlet tee is secured to the tank wall and connected to the outlet pipe, the StormTEE® screen easily slips inside the custom outlet tee like a sword in a sheath.

3. Angled Slots – Angled slots, similar to those used in industrial well screens, are used because they resist blinding (clogging) better than mesh-type screening devices. The appropriate slot width does not allow nuisance solids to be discharged.

Technical Downloads


StormTEE® Drawings and Specifications


StormTEE® Model Size
Screen Diameter
Screening Level
Flow Range
File Type
450-750 GPM (1703-2838 LPM)
450-750 GPM (1703-2838 LPM)
SMT1618 16″
2250-4500 GPM (8513-17026 LPM)
SMT1638 16″
2250-4500 GPM (8513-17026 LPM)

Get AcrobatAdobe Reader Get Quick ZipQuick Zip   Get DraftSight  Discover DraftSight: Free CAD Software.

PLEASE NOTE: In order to open the zipped CAD version, you must have zip compression software, such as WinZip or QuickZip. In order to view the CAD (.dxf) file, you must have installed CAD viewing software, Release 12 or newer. The PDF format can be viewed by installing Adobe Acrobat Reader (4.0 or newer). Click on the images to the right to download either Adobe FREE Acrobat Reader or QuickZip.

Case Studies


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Product Certifications

Our products are certified to the highest national and international standards in our industry. If you require additional certification marks, etc, please e-mail your request to

USA and International Product Certifications

The list below is a summary of a few certifications received for the products of BioMicrobics:

  • LEED SS Credit 6.1-6.2: Stormwater Design – Quality Control Testing BioSTORM® Stormwater Quality Statement: BioSTORM® Stormwater Treatment system demonstrates 90% Removal Efficiency of the TSS removal capabilities with silica sand particle size distribution closer to the NJDEP sizing (current stormwater guidelines). As Stormwater regulations continue to emerge, the BioSTORM® is proving to be highly effective at managing storm water runoff.
  • All FAST® – Poland – Aprobata Techniczna (Technology Approval) ze Instytut Ochrony Srodowiska (Institute of Environmental Protection)
  • All FAST® – Russia – (Federal Service of Environmental Protection) Technology Approval
  • BioSTORM® All sizes – Russia – CPT Certification of Russian Standards –
  • All FAST® – U.K. – United Kingdom Department of Trade

Independent Third-Party Testing

Verification programs/locations in which BioMicrobics installed a Wastewater Treatment System for analysis of performance:

  • Massachusetts Title 5 General Use – The first system described as an “Innovative and Alternative (I/A) System” to receive the General Use Approval rating for Nitrogen Reduction
  • Florida OWNRS (Onsite Wastewater Nitrogen Reduction Study) Phases I and II
  • New Mexico State/New Mexico University
  • University of Rhode Island
  • Buzzards Bay, MA
  • Ventura County, CA
  • US EPA Environmental Technology Verification Program (ETV), B.C., Canada
  • La Pine, OR
  • Burnette, WA
  • NSF International testing and evaluation for Standard 40, 245, and 350

Recent Business and Technology Awards


  • 2017 North American “Integrated Water Treatment Technology Leadership” Award, Frost & Sullivan
  • 2017 Top 10 Green Building Products, BuildingGreen, Inc.- d-Rain Joint™ Device
  • 2016 President’s “E Star” Award * 2012 President’s “E” Award for Excellence in Exports, granted by President of the United States, presented by US Dept of Commerce
  • 2015 Ingenuity Award Winner, Ingenuity Central @ K-State Olathe, Ingenuity Central (IC) showcases innovative companies that exemplify the newest thinking driving our community & growing our economy.
  • 2015 Innovation in Marine Environmental Technology Offshore Excellence Award, based on environmental impact with marine sanitation devices and technology.
  • 2014 “BEST of GreenBuild” Editor’s Choice Award, U.S. Builder’s Review, “Creating Better Water Treatment Solutions for a Better World…“article.
  • 2012 President’s “E” Award for Excellence in Exports, granted by the U.S. President, presented by the U.S. Department of Commerce
  • 2011 Kansas Governor Exporter of the Year, presented by the Governor of Kansas
  • 2011 North American Technology Innovation Award (Decentralized Commercial Outlets) – Frost & Sullivan
  • 2011 New Product of the Year Award (Recycling) – BioBarrier® MBR System – Environmental Protection (EPOnline)
  • 2010 North American Technology Innovation Award (Water/Wastewater) – Frost & Sullivan
  • 2009 Exporter of the Year Award, Environmental – ThinkGlobal / Commercial News USA (Official publication of the U.S. Dept. of Commerce)
  • 2009 Technology Merit Business Achievement Award, Water/Wastewater – Environmental Business Journal (EBJ)
  • 2002 U.S. Export Achievement Certificate, US Dept. of Commerce, US & Foreign Commercial Service
  • 2000 U.S. EPA Environmental Technology Innovator Award – U.S. EPA, Region 1 – SeptiTech® Technology