Baffled Wash Troughs

Baffled Wash Troughs 101

Ortho-WashTM Troughs: Guaranteed Filter Media Retainage

Orthos’ success in 2020 continues with more media retention trough installations for low-freeboard granular media filters. Our Ortho-Wash™ baffled wash troughs are also used when sustained air-water backwash is needed, allowing the efficient combined cleaning process to run as long as necessary.

Media loss is prevented using integrally-mounted baffles that deflect air and provide an adjacent quiescent volume to settle out lightweight GAC or anthracite. Ortho-Wash™ troughs employ a vertical deflector baffle with precision width slots to allow water to flow through, however media is kept out of the quiescent area. Low velocities into the quiescent space allow any GAC or anthracite that has made its way in, to settle out of the baffled volume. 

Be sure to visit the Ortho-Wash™ Trough page to learn more!

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Remember Orthos’ HUGE life cycle cost benefits– At the end of the filter’s life cycle (~25 years), in contrast to a complete plastic block or folded sheet metal underdrain overhaul, nozzles are simply replaced
potentially saving $Millions.


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