Filter Media Problems

Filter Media Loss Problems?

Ortho-WashTM Troughs: Guaranteed Filter Media Retainage

For over a half dozen years, Orthos has delivered granular media retention troughs for low-freeboard filters. Our Ortho-Wash™ baffled 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!

Ortho-Wash Baffled Troughs

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Resilient – Reliable – Sustainable – Permanent 

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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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