Leopold Underdrains - Industry leader

Leopold Underdrains - Industry leader
Leopold® provides three types of underdrains to meet any configuration need. The Underdrains collect filtered water during the filter run, and distribute air and water during backwash cycle. All Leopold® underdrains deliver the superior performance that has made the Leopold Underdrain the industry leader.
Some of the benefits of Leopold® underdrain are:
  • Superior Air and Water Distribution for effective backwash. The dual parallel lateral design and the water recovery channels, both developed by Leopold®, give even distribution with less than 5% maldistribution and no dead zones, even in extra-long length laterals.
  • Cleaner filters mean longer filter runs and higher water efficiency, more product water, less waste. This lowers your operating costs per gallon or liter of filtered water.
  • Air Flow Adjustability allows YOU more control and saves energy and water. Air scour rate can be adjusted from 0.3 to 1.5 m/min, enabling collapse pulse cleaning during concurrent air/water backwash with various media configurations. Air scour provides higher shear forces and cleaner media, with less wastewater generation.
  • Faster installation with fewer parts than nozzle systems and no false floor. Underdrain blocks are light weight for easily handling and snap together for quick installation, shortening construction time and putting you in production quicker.
  • Design Flexibility with different heights to allow for different combinations of lateral lengths and vertical filter heights, as well as different flume configurations.
With the underdrains Leopold recommends Leopold® I.M.S® 200 and I.M.S® 1000 Media Retainers
Some of the benefits of the IMS Media Retainer are:
  • Replaces up to 14 inches (35.6 cm) of Gravel Media Support allowing for the same media depth in less vertical space, reducing construction costs.
  • Compatible with all Leopold® Underdrains, I.M.S® retainers installwith simple tools, saving time and labor, again reducing construction time and costs.
  • Provides even backwash distribution to deep clean filters.
  • Two Sizes for different applications
    • I.M.S.® 200 with 0.2 mm overlapping slots is specifically designed for drinking water treatment using dual media or mono media anthracite. Supports media of effective sizes down to 0.45 mm sand
    • I.M.S.®1000 with 1 mm tapered slots is specifically designed for wastewater treatment applications, including the elimi-NITE denitrification system developed by Leopold. Supports media of effective size down to 1.7 mm.

Contact Information


Company Information

Company Name: Xylem Water Australia

ABN: 28 000 832 922

Year Established: 1970

Entity Type: PUB

Number of Employees: Unknown

Annual Revenue: Greater than $100m

Description of Product/ Services

Summary: Leopold is the industry leader in Underdrain technology. Leopold Underdrains are used in gravity filters all over the world. It provides a Superior Air and Water Distribution for effective backwash.

Application by Type of Water: - Potable or Drinking water, - Wastewater or Sewage, - Industrial Wastewater or Trade waste, - Stormwater, - Recycled water

Application by Type of Water Infrastructure: - Treatment Plant or Facility

Manufacturing Status: - Original Equipment Manufacturer (OEM)

Listing Contact Person

Name: Samik Mukherjee

Title: Business Development Manager

Phone: (02) 9832 6200

Other Information

This Listing appears in the following Categories:

Plant & Equipment Suppliers » Turnkey Systems & Technologies » Filtration Systems

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