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Summary of Contents for Hydro International First Defense

  • Page 4 Operation and Maintenance Manual First Defense and First Defense ® ® Stormwater Solutions Vortex Separator for Stormwater Treatment Turning Water Around ... ®...
  • Page 5 Storage Depth bypass chamber to prevent washout during high-flow storm document and all associated information are directed. Hydro International plc owns the copyright of this document, which is supplied in confidence. It events. The sump of the First Defense retains a standing ®...
  • Page 6: Maintenance

    191 / 723 <24.4 / 62 FD-6 420 / 1,590 <23.5 / 60 The vactor procedure, including both sediment and oil / flotables removal, for a 6-ft First Defense typically takes less than 30 minutes ® 6 / 1.8 3.3 / 2.5 37.5 / 95...
  • Page 7 Notify Hydro International of any irregularities noted during water levels. Fig.5 Sediment is removed with a vactor hose (First Defense Fig.4 Floatables are removed with a vactor hose (First Defense inspection. model FD-4, shown).
  • Page 8 FD-4 FD-4HC FD-6 FD-6HC INLET (CIRCLE ALL THAT APPLY): GRATED INLET (CATCH BASIN) INLET PIPE (FLOW THROUGH) Hydro International (Stormwater), 94 Hutchins Drive, Portland ME 04102 Hydro International (Stormwater), 94 Hutchins Drive, Portland ME 04102 Tel: (207) 756-6200 Fax: (207) 756-6212 Web: www.hydro-int.com Tel: (207) 756-6200 Fax: (207) 756-6212 Web: www.hydro-int.com...
  • Page 9 Notes NOTES First Defense Operation and Maintenance Manual First Defense Operation and Maintenance Manual ® ® Hydro International (Stormwater), 94 Hutchins Drive, Portland ME 04102 Tel: (207) 756-6200 Fax: (207) 756-6212 Web: www.hydro-int.com...
  • Page 10 What is HX? HX is Hydro Experience, it is the essence of Hydro. It’s interwoven into every strand of Hydro’s story, from our products to our people, our engineering pedigree to our approach to business and problem-solving. HX is a stamp of quality and a mark of our commitment to optimum process performance.

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