StormwateRx LLC, a provider of industrial storm water treatment and filtration systems, recently announced the availability of Aquip Downspout, a new configuration of the Aquip storm water filtration system specifically for attachment to roof downspouts. Aquip Downspout removes particulate and dissolves zinc and other heavy metals that are often present from facilities with zinc-coated or galvanized metal roofing or HVAC equipment.
Storm water running off of facilities with galvanized metals is a major cause of zinc pollution and aquatic toxicity in local waterways. Installing Aquip Downspout on a building with galvanized roofing can permanently reduce zinc concentrations by 98%, helping industrial facilities meet federal and state NPDES storm water benchmarks for zinc and other metals.
Aquip Downspout attaches to downspouts of 2- to 6-in. in diameter. The system uses a layered, advanced media configuration developed by StormwateRx specifically for filtration of particulates and adsorption of dissolved metals from rooftops. The system uses the same patented, hydraulic flow control process that other Aquip enhanced filtration systems use.
Each Aquip Downspout treats up to 10,000 sq ft of roof area. The system requires no power, uses no chemicals, has no moving parts and offers easy do-it-yourself installation. It includes both external and internal high flow bypasses. Conventional zinc-coated steel roofs releasing between 0.3 and 2.0 mg/L of zinc in storm water runoff can be reduced to well below the U.S. Environmental Protection Agency benchmark of 0.12 mg/L zinc using Aquip Downspout.
Aquip is accepted by the Washington Department of Ecology as a storm water treatment Best Management Practice (BMP) for Level 3 Corrective Action and is an approved CULD treatment technology for new development and redevelopment projects under the rigorous TAPE certification process. The system is also accepted as a treatment BMP for Oregon Tier 2 Corrective Action.
