Simul-Wash™ is a proven sustained, simultaneous air/water filter backwash system that extends the life of filter media, minimizes backwash waste, prevents mudballs from forming and frees nearly all captured filter debris – better than any other backwash method available. Simul-Wash™ works well in a variety of configurations, from horizontal and vertical pressure filters to low profile retrofit applications on gravity filters.

Tonka Water’s Simul-Wash™ backwash system is the only sustained air and water backwashing process using the “collapse-pulse” technique first documented by Amirtharajah in a landmark AWWA Research Foundation. Simul-Wash™ also meets Ten States Standards and has a low profile baffled trough design providing long and clear spans. Stainless steel is the standard construction for components uniquely suited for “vertically challenged” filters.

Simul-Wash™ is applicable with manganese greensand or any mono, dual or tri-media application. The key features of Simul-Wash™ are that it prevents media loss while using as little as half the water of a conventional backwash system. This allows the use of significantly downsized backwash system requirements. Construction costs and wash water consumption are also reduced, saving a substantial amount of money and water with every backwash.

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City of Gautier

Gautier, MS
The City of Gautier is located in Jackson County along the Gulf of Mexico west of Pascagoula. Residents of Gautier were experiencing a brown tint in their water and had voiced concerns about the color and slight odor.
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Trinity Bay Conservation District

Anahuac, TX
The Trinity Bay Conservation District designed an upgrade to the District’s deteriorating water distribution and plant infrastructure.
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City of Kelleys Island

Kelleys Island, OH
The existing water treatment facility at Kelleys Island, Ohio—built in 1973—consisted of slow sand filters for the removal of turbidity from Lake Erie.
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Village of Parma

Parma, MI
Due to the rapid growth of this automotive parts manufacturer, water demand within the plant had outgrown its water production capabilities.
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Contaminant Guide

Our extensive experience covers a full spectrum of water treatment needs and our process solutions are backed by demonstrated successes for thousands of installations across North America. If you’re unsure of what process is best for your unique treatment needs, our treatment experts can help analyze your situation and review your options.