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A FLOW OF 200 GPM WILL HAVE A HEAD LOSS OF 0,4 FT/ 100 FI 1N A 6 INCH <br />DIAMETER PIPE. 211/ 100 LINEAL FEET X 0.4 = 0.8 FEET OP LOSS. <br /> <br />A FLOW OF 100 GPM WILL HAVE A HEAD LOSS OF 0,7 FT / 100 FT IN A 4 INCH <br />DIAMETER PIPE. 30/100 L1NEAL FEET MAX. X 0.7 = 0.3 FEET OF LOSS. <br /> <br />FLOW SPLITTER LOSSES ARE ASSUMED TO BE 1 FOOT. <br /> <br />AVAILABLE HEAD FOR LOSSES (3 FT) 1S 1N THE RANGE OF EXPECTED LOSSES LISTED <br />ABOVE, THUS DESIGNING FOR 5 FEET OF HEAD AT THE HIGHEST LATERAL (Al) SE~MS <br />REASONABLE. <br /> <br />HEAD AT ANY OTHER LATERAL = (ELEV, A1 - ELEV. #) + 5 FT. <br /> <br />S1ZING THE DISPOSAL FIELD LATERALS <br /> <br /> USE 2 INCH DIAMETER CLASS 200 PVC WITH 1/8 INCH DIAMETER HOLES iN THE TOP. <br /> Q PER LATERAL = 200 GPM / 2 ACTIVE DRAIN FIELDS / 10 LATERALS = 10 GPM. <br /> Q PER HOLE = GPM LISTED IN A CHART FOR GIVEN BEAD & 1/8 1NCH HOLES. <br /> NUMBER OF HOLES PER LATERAL = 10 GPM / Q PER ROLE <br /> <br /> EACH LATERAL IS 63 FEET LONG AND THE F1SRT HOLE 1S LOCATED 4 FEET FROM THE <br /> DISTRUBITION PIPE, AND THE LAST HOLE IS 1 FOOT FROM THE REMOTE END. THIS <br /> LEAVES 58 FEET TO EVENLY SPACE THE REMAINING BOLES. <br /> <br /> HOLE SPACING (INCHES) = (58 X 12) INCHES / (NUMBER OF HOLES - 1) <br /> <br />SCHEDULE OF LATETERALS & HOLE SPACING <br /> <br /> LATERAL HEAD FLOW (Q) <br /> NUMBER (FT) GPM/HOLE <br /> <br />NUMBER OF SPACING <br />1/8" HOLES INCHES <br />PER HALF <br /> <br />B1 12 0.64 16 46 1/2 <br />B2 13 0.67 15 49 3/4 <br />B3 14 0.69 14 53 1/2 <br />B4 15 0.71 14 53 1/2 <br />B5 16 0.74 13 58 <br /> <br />Cl 7 0.49 20 36 1/2 <br />C2 8 0.52 19 38 3/~ <br />C3 9 0.55 18 41 <br />C4 10 0.58 17 43 1/2 <br />C5 11 0.61 16 46 1/2 <br /> <br />A1 5 0.41 24 30 1/4 <br />A2 5 0.41 24 30 1/4 <br />A3 7 0.49 20 36 1/2 <br />A4 8 0.52 19 38 1/2 <br />A5 9 0.55 18 41 <br />A6 12 0.64 15 49 3/4 <br /> <br /> <br />