• Flexible design adapts to a wide range of filtration requirements.
• Accommodates virtually any flow volume.
• Automated unit controlled from a central location.

QuadraKleen® filters easily adapt to a wide range of filtration requirements. Its flexible basin geometry easily accommodates a variety of mono or dual media bed depths and media types, including sand, anthracite and granular activated carbon. Multiple QuadraKleen filters can be arranged around common influent/effluent channels, accommodating virtually any flow volume.

• Air scour cleaning reduces duration of backwash cycles and wash water volumes.
• No need for backwash water storage, reducing costs.
• Central access column simplifies maintenance.
• Constructed from durable materials and fully factory assembled.

The QuadraKleen® filter cell is entirely constructed from concrete. The steel central valve access/waste drain column is prefabricated and fully factory assembled. The CastKleen® filter under drain features monolithic slab construction and FlexKleen® Mark 3 flow control nozzles. The FlexKleen nozzles require no gravel distribution layer, and their adjustable, flow-balancing tailpipes ensure uniform air distribution during air scouring of the filter media. Optional ScourGuard™ wash water collection troughs protect against media loss during air-assisted backwash.

What is the maximum backwash rate assuming no backwash pump or excess storage?

Each filter maximum filtration rate is 5.0 gpm/sf, translating to 15 gpm/sf with one filter in backwash.

Can multiple QuadraKleen filter systems be constructed/operated together?

Yes, dual QuadraKleen filter systems, a total of 8 cells, is common.