Trench Former First Flush

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BMP Solution

Pollution Problem Solver

ABT Inc’s First Flush® products are designed specifically for sites under 100 acres where specific pollutants – oils, greases, and other hydrocarbons – must be captured without impeding bypass flow particularly during the first fifteen minutes of a rainfall or “first flush” effect.

Space restricted sites: First Flush technology is perfect for sites that lack the necessary area for retention ponds and larger structures.

Stormwater Filtration

Filtration Media

FirstFlush is the perfect solution when seeking a BMP that must handle sheet flow, control vectors, collect debris, treat bacteria, and capture hydrocarbons – all on the same site.  ABT First Flush systems utilize a variety of filtration media and fabrics.

  • Standard Filtration “Blankets”
  • Antimicrobial Filtration Media
  • Hydrocarbon Media
  • HMR – Heavy Metals Removal Media

 

1640FF Product Data - FirstFlush Stormwater Filtration Systems

The FirstFlush 1640FF, our largest capacity design, uses ABT’s patented forming technology to create a highly durable concrete component.  As effluent enters either through an inlet pipe or a trench drain, the first chamber captures solid debris.  After passing through the sediment screen, effluent passes through two removable smart sponge filter panels before exiting.  The pre-sloped bottom eliminates ponding, an excellent feature where vector control is an issue.  The 1640FF is provided with solid covers.


Description

Dims

(in)

Debri Volume

(cu. ft)

Bypass Flow Area – Debris Chamber

(in-sq)

Bypass Flow Area – Filter Chamber #1

(in-sq)

Bypass Flow Area – Filter Chamber #2

(in-sq)

Details Sheet

(.dwg .pdf)

Specification
(Coming Soon)

1640FF24-4

4′ Long

24 x 48 x 48
9.4
46.8
165.8
-NA-

1640FF24-6

6′ Long

48″ Depth

24 x 48 x 72
15.5
46.8
146.6
-NA-

1640FF24-6H

6′ Long

30″ Depth

24 x 30 x 72
9.5
42.5
146.6
-NA-

1640FF24-8

8′ Long

48″ Depth

24 x 48 x96
19.2
44.6
129.6
163.6

1640FF24-8H

8′ Long

30″ Depth

24 x 30 x 96
11.85
42.5
142.4
153.0