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Uesigh Overview <br /> Existing 5 bedroom home with a 750 gpd flow rate. The mound is split into two equal parts & <br /> denoted as Mound A and Mound B. Soils and peres are conducted for both mounds. <br /> Uneven pressure equalization utilized. See particular Mound A and Mound B Worksheets for <br /> lateral hole size and spacing. They are different - refer to the design pages. <br /> Pump flow rate is about 60 gpm at a head of 23 feet. As an option, an alternating pump <br /> panel may be installed to alternating dose each individual mound instead of both at once. <br /> A filter and alarm in the second septic tank is required. <br /> Elevations are listed here. <br /> BM is NE garage corner top of block at 100.00'. <br /> Mound manifold is 103.35'. <br /> Mound B manifold is 101.50'. <br /> House sewer pipe invert is 94.5'. A grinder pump may need to be installed in the basement to <br /> keep septic tank cover depth at 4 feet. Verify field conditions and depth of new sewer pipe <br /> to see if gravity sewer pipe out of house can be attained and not have septic tanks buried more <br /> than 4 feet. <br /> 1 st tank invert is 93.5'. 2nd tank invert is 93.75'. pump tank invert is 94.0'. <br /> 1 st tank average grade is 98.5'. 2nd tank avg grade is 97.8'. pump tank avg grade is 97.7'. <br /> Pump elevation is at 90.0'. Head is 9.35 feet. <br /> Install a gate valve for each mound with a squirt height tester to fine tune flow rate to each <br /> mound if conditions of laterals vary over time. see diagram. <br /> Install lateral cleanouts in one end of each mound. <br /> Snow may be plowed as indicated on the site map. Insulate all pipe under and near these <br /> areas. <br /> Pump and alternating panel if installed power may come from garage or panel for pool filters. <br />