Case Studies

Half Moon Bay CA - PNG

Half Moon Bay, CALIFORNIA

  • Complete reduction in ragging, saving $735 per month.
  • 19% energy savings, with PG&E bills down $500 per month.
  • Annual Saving projected by the Authority at $14,820.

Read more in the PDF below.

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Mt Juliet TN - JPG

Mt Juliet, TENNESSEE

  • Complete reduction in ragging
  • Significant reduction in current (18amp average to approx. 13amps)
  • 21% energy savings

Read more in the PDF below.

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Lake Worth FL - PNG

City of Lake Worth, FLORIDA

  • No ragging issues since installation in June 2014
  • Increased flow rates

Read more in the PDF below.

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Western Avenue CA - PNG

Western Avenue (Los Angeles County), CALIFORNIA

  • No ragging issues since installation in November 2013
  • Reduction in electricity consumption by 4.5%
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pump lifting

Nigg WwWT (Kelda)

Since installing the DERAGGER II (Oct 2013):

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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control monitors

Ross Point (Scottish Water)

Since installing the DERAGGER II (Apr 2011):

  • 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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dragger control box

Strontian (Scottish Water)

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