RWM-DM
NEW FROM RAINWATER MANAGEMENT! We are proud to announce two new ETV-verified Oil/Grit Separators (OGS). Rainwater Management now has two OGS technologies to choose from depending on market and treatment requirements. The latest technology is called the RWM-DM1 and RWM-DM1-OS which has been verified to meet the ETV Canada Procedure for Testing Oil/Grit Separators (ISO 14034:2016) testing requirements. These requirements are widely considered the benchmark for stormwater treatment technologies.
The Rainwater Management RWM-DM brand of stormwater treatment technologies are hydrodynamic oil/grit separators (OGS) that provide a unique flow path inside the treatment chamber to enhance gravity settling to remove solids and retain hydrocarbons from stormwater runoff.
The RWM-DM1 and RWM-DM1-OS units have been fully third-party tested and verified by an ETV-approved laboratory and are currently listed on the ETV Canada product list:
(https://etvcanada.ca/home/verify-your-technology/current-verified-technologies/)
Please follow this link to the verification statement:
(https://www.verifiglobal.com/media/ltsgbqsy/final-rwm-dm1-verification-statement-2026-01-09.pdf).
The RWM-DM and RWM-DM-OS units have also been fully third-party tested and verified by and ETV-approved laboratory to the latest ETV Canda Procedure for Testing Oil/Grit Separators (ISO 14034) testing requirements. However, these testing protocols have yet to be widely accepted and adopted.
The “OS” units have a lower weir height than the non-“OS” unit which specifically targets oil spill capture and retention while still effectively removing sediment.
Any variation of the RWM-DM stormwater treatment technology can be installed as a bend structure, can accommodate multiple inlets, and do not require an elevation difference between the inlet and outlet pipes.
Maintenance is a key to any oil/grit separator system for proper long-term effectiveness. Rainwater Management’s RWM-DM group of stormwater treatment technologies allow for unobstructed access without confined space requirements. Many oil/grit separator technologies only allow for off-centre maintenance access which does not allow for effective sediment removal.
RWM-DM System Benefits
- ETV-verified technology
- Designed and made in Canada
- Distributed by companies owned and operated in Canada
- Simple installation and unobstructed, center access cleanout
- Cost effectively removes a wide range of pollutants
- Isolated sump eliminates captured sediment washout
- Customizable / flexible design overcomes multiple site constraints
- Accommodates a wide range of treatment and requirement options with two ETV verifications
Also Available
RWM-SS
