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Septic System Design Page 2 <br /> • A filter bed 30 by 45 feet will be provided for each unit. One hundred percent <br /> reserve area will be provided on the site plan. <br /> • Quarterly sampling and system inspection is recommended. <br /> System Design Criteria <br /> • Two MicroSeptec EnviroServer#ENFGI500 will be required to provide a design <br /> sewerage flow of 3000 gallons per day. <br /> • A filter bed size of 2700 square feet was determined by an engineering evaluation <br /> of the soil type and an on site permeability test. Each filter bed will serve one of <br /> the MicroSeptec units. The filter bed size will be 30 by 45 feet. <br /> • Drain from the food preparation area must flow to the grease trap prior to the <br /> sewer treatment units. A dosing point is required in the second chamber of the <br /> grease trap to be equipped with float switches to activate the pump and provide a <br /> high level alarm as an indicator of pump failure. <br /> • All pressurized lines leading to the MicroSeptec treatment units must be a <br /> minimum of 2 inches in diameter. All gravity drain lines must be a minimum of 4 <br /> inch diameter. Effluent lines from the MicroSeptec treatment unit to the filter bed <br /> must be 1 and one half inch diameter minimum. <br />