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MESS HALL <br /> <br /> DAILY FLOW : 40 GPD X 20 SEATS = 800 GPD <br /> <br /> MINIMUM WORKING CAPACiT¥ OF TANK [] 800 X 1.5 [] 1200 GALLONS. <br /> USE A TWO COMPARTMENT 1500 GALLON TANK. <br /> <br />TOTAL PROJECT FLOW = 1800 + 1800 + 900 + 800 = 5300 GPD (USE 5000 GPD AS PER <br />GARY MESSER DUE TO SEASONAL USE OF APRIL THRU NOV.) <br /> <br />LENGHT OF DRAIN FIELD = 5000 GPD X <75 LF / 150 GFD) = 2500 LINEAL FEET. <br /> USE FOUR EQUAL F1ELDS OF 625 L1NEAL FEET EACH. <br /> <br /> USE F1VE LATERAL RUNS OF 125 FEET (63 FEET EACH SIDE OF CENTER DiSTRiBUTiON <br /> FIPE). <br /> <br />SiZE OF DOSE = LENGTH X W1DTH OF DOSING TANK X DRAW DOWN <br /> <br /> 142/12 FT X 72/12 FT X 24/12 FT = 142 CF X 7.48 G/CF = 1062 GALLONS <br /> <br /> NUMBER OF DOSES PER DAY = 5000 GPD / 1062 GALLONS / DOSE = 3-5 DOSES / DAY. <br /> <br />RATE OF SIPHON DISCHARGE (Q) [] 0.45 X AREA X SQ. ROOT (2GR) = MAXIMUM FLOW <br /> GIVEN: 7.48 GAL / CF 60 SEC / MIN 12 1N / FT G = 32.2 FT / SEC SQ. <br /> YIELDS: Q = 1.1015 X D1AMETER SQ. X SQ. ROOT (64.4 X H) = GPM <br /> USING :PiPE DIAMETER = 4 INCHES DRAW DOWN HEAD (H) = 2 FEET <br /> YIELDS: Q = 1.1015 X 4 X 4 X SQ~ ROOT (64.4 X 2) = 200 GPM. <br /> <br /> THUS WE WILL USE TWO ~ INCH DIAMETER DOSING SIPHONS WITH A 24 1NCR DRAW <br /> DOWN. SIPHONS WITH HIGHER DRAW DOWN ARE AVAILABLE, HOWEVER THE 24 INCH <br /> MODEL WILL PHYSICALLY FiT INT0 A 3000 GALLON DOSING TANK. (ORENCO 424). <br /> <br />HEAD AVAILABLE AT DRAIN FIELD LATERALS <br /> <br /> POOL ELEVATION AT DOSING TAN~< = 1645.0 FEET <br /> <br /> HIGHEST DRAiNFIELD LATERAL A1 = 1637.0 FEET <br /> <br /> AVAILABLE HEAD = 8.0 FEET <br /> MINiMUM HEAD ALLOWED = 5.0 FEET <br /> <br /> HEAD AVAILABL~ FOR P1PiNG LOSSES = 3.0 FEET <br /> <br /> <br />