Flexscour^® Underdrain

Granular Media Filtration Efficiency–Built In

Introducing an innovative system that transforms granular media filtration.

The Flexscour^® Underdrain is a durable, corrosion-resistant system that eliminates common flow problems and ensures uniform air and water backwash, providing efficient and cost-effective filtration for a wide range of applications.

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NO SURGING WAVE? NO WAY!

THE PROBLEM

Traditional combined air and water cleaning systems are plagued by two things: improper sizing of variable diameter orifices and media displacement by surging or irregular flows. These issues can lead to inefficient cleaning and higher operational costs.

THE OVIVO SOLUTION

The Flexscour Underdrain eliminates the surging wave action commonly responsible for media migration in combined air and water backwash systems.

By partitioning lateral ducts into separate channels for air and water, the Flexscour Underdrain prevents media displacement and ensures uniform cleaning.

This system offers a flexible and reliable solution for both new installations and retrofits. And there’s no need for false floors.

PEAK FILTER PERFORMANCE WITH CONSISTENT AIR AND WATER DISTRIBUTION

HOW IT WORKS

The Flexscour Underdrain uses a combination of overhead steel pipes for air supply and concrete floor channels for filtrate and backwash water flow. Distribution orifices are specifically sized for each application to ensure flow equalization. Stainless-steel shields cover lateral orifices, and the entire assembly is fastened to the filter floor with stainless-steel anchor bolts.

This design eliminates surging wave action and ensures uninterrupted air distribution, allowing vigorous, uniform cleaning with no media displacement.