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Aqua-Swirl™ stormwater treatment system by AquaShield™ Inc., provides a highly effective means for the removal of sediment, floating debris and free-oil normally present in the "first flush" or the stormwater that initially runs off an area that is more polluted than the stormwater that runs off later. This system is a perfect match for our Rainstore³ system to keep out fines and floating debris. For more information about Aqua-Swirl™ visit www.aquashieldinc.com or give us a call at ETG. |
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Aqua-Swirl™ sizing chart |
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Aqua-Swirl™ |
Swirl Chamber Diameter (ft) |
Maximum Stub-Out Pipe Outer Diameter (in) |
Water
Quality Treatment Flow² (cfs) |
Oil/Debris Storage Capacity (gal) |
Sediment Storage Capacity (ft³) |
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| On/Offline | CFD¹ | |||||
| AS-2 | 2.50 | 8 | 12 | 1.1 | 37 | 10 |
| AS-3 | 3.25 | 10 | 16 | 1.8 | 110 | 20 |
| AS-4 | 4.25 | 12 | 18 | 3.2 | 190 | 32 |
| AS-5 | 5.00 | 12 | 24 | 4.4 | 270 | 45 |
| AS-6 | 6.00 | 14 | 30 | 6.3 | 390 | 65 |
| AS-7 | 7.00 | 16 | 36 | 8.6 | 540 | 90 |
| AS-8 | 8.00 | 18 | 42 | 11.2 | 710 | 115 |
| AS-9 | 9.00 | 20 | 48 | 14.2 | 910 | 145 |
| AS-10 | 10.0 | 22 | 54 | 17.5 | 1130 | 180 |
| AS-12 | 12.0 | 24 | 60 | 25.2 | 1698 | 270 |
| AS-XX* | Custom | -- | -- | >26.0 | -- | -- |
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Contact ETG for pricing information on items above. |
*Higher water quality treatment flow rates can be designed with multiple swirls.
(1) The Aqua-Swirl™ Conveyance Flow Diversion (CFD) provides full treatment of the "first flush," while the peak design storm is diverted and channeled through the main conveyance pipe. Call ETG for more information.
(2) Many regulatory agencies are establishing "water quality treatment flow rates" for their areas based on the initial movement of pollutants into the storm drainage system. The treatment flow rate of the Aqua-Swirl™ system is engineered to meet or exceed the local water quality treatment criteria. This "water quality treatment flow rate" typically represents approximately 90% to 95% of the total annual runoff volume.
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