Clay Tile Underdrain
Proven Ceramic Underdrains for Reliable Filter Performance
Roberts Filter Group’s Clay Tile Underdrains have been supporting municipal and industrial filters for generations. Built from dual-parallel ceramic blocks that provide wall-to-wall coverage, Clay Tile systems deliver uniform backwash distribution, exceptional structural strength, and long-term durability. Still trusted in plants around the world, Clay Tile remains one of the most reliable underdrain solutions available — and Roberts continues to supply, support, and rehabilitate these systems today.
Why Choose Clay Tile?
Uniform Backwash Distribution
Dual conduits and evenly spaced orifices provide consistent air and water flow, ensuring even cleaning across the filter bed.
Structurally Sound
Designed to bridge flumes while supporting the full weight of filter media, Clay Tile blocks provide robust, long-lasting performance.
Simple Installation
Installed level and grouted into place, Clay Tile systems are straightforward to build and maintain. Support gravel allows the use of the most common media profiles.
Proven Legacy
With thousands of square feet still in operation worldwide, Clay Tile systems are proven to deliver decades of reliable service when properly maintained.
Applications
Municipal gravity filters
Surface water treatment plants
Industrial water filtration
Rehabilitation of legacy underdrain systems
Lifecycle Services for Clay Tile Underdrains
Roberts Filter Group offers complete lifecycle support for Clay Tile systems:
- Inspections & Performance Audits to assess system condition
- Rehabilitation Services including grout repair and component replacement
- Media Changeouts to restore optimal performance
- Parts Supply for ongoing maintenance and upgrades
Benefits at a Glance
Uniform, efficient backwashing
Long-term structural reliability
Easy installation and maintenance
Supported worldwide by Roberts’ OEM expertise
