Nigg WwTW (Kelda)

Since installing the Deragger II (Oct 2013):Ragged pump

  • Despite the pumps ragging up several times daily prior to Deragger install, Nigg has since reported only a single ragging incident (one pump), which was due to a curtain-like material

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Ross Point (Scottish Water)

Ross Point Since installing the Deragger II (Apr 2011):

No ragging issues since installation.

  • No ragging issues since installation
  • 35% reduction of electricity consumption
  • Cost benefit of £8,112 in first year.
  • Payback period of 5 months

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Western Avenue (Los Angeles County Sanitation Districts)

Western Avenue Pumping Station in California

Since installing the Deragger II (Nov. 2013):

  • No ragging issues
  • Reduction in electricity consumption by 4.5%

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Lake Worth (City of Lake Worth)

Lake Worth US

Since installing the Deragger II (June 2014):

  • No ragging issues since installation
  • Increased flow rates

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Strontian (Scottish Water)

photo 5 cropped compressedSince installing the Deragger II (December 2012)

  • No ragging issues
  • Ended expensive reactive callouts due to ragging at this isolated and difficult to reach site

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