Xylem’s Leopold Type 360 underdrain, is a bolt down system for greenfield projects and water treatment filtration rehabilitation projects with a design that allows backwash water to flow in a 360-degree pattern, increasing efficiency by up to 20%.
With an uplift resistance above 15 psi, the Leopold Type 360 can withstand most unexpected events like hydraulic surges (water hammer). Its design features slots and orifices on the top, sides and bottom of the underdrain block to effectively clean the filtration media from every angle during the backwash process, completely eliminating media dead zones that develop in other systems due to gaps in their backwashing coverage.
By washing 100% of the media in between each lateral, the Type 360 underdrain increases filter run times, reduces backwash water consumption and extends media filter life.
The Type 360 underdrain is compatible with all standard flume and air configurations and is suitable for long filter runs and retrofits of existing filters. It solves current water challenges for biologically active filtration systems, indirect and direct potable reuse applications and the rehabilitation of existing media filters.
