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H dros litter Orifice Calculation <br /> Clei <br /> Y p <br /> Orenco Systems <br /> Incorporated <br /> Company: 814 AIRWAY AVENUE <br /> SUIHERLIN,OREGON <br /> Project: 97479 <br /> Phone: <br /> TOLL FREE <br /> Fax: MOO .9943 <br /> By: TELEPHONE <br /> (5411459-4449 <br /> FACSIMILE <br /> Flow Rate: 29 Residual Pressure: 2 Pump/Siphon: pf3005 041)459-2864 <br /> www.orenco,com <br /> Trench# Length %Flow GPM Orifice Size <br /> 1 50 11.1% 3.22 0.429" <br /> 2 60 13.3% 3.87 0.47' <br /> 3 60 13.3% 3.87 0.47' <br /> 4 50 11.1% 3.22 0.429" <br /> 5 40 8.9% 2.58 0.384" <br /> 6 70 15.6% 4.51 0.508" <br /> 7 120 26.7% 7.73 0.665" <br />