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Fiberglass Tank Volume Charts Orenco Systema• Incorporated Baffle Placement Volume Chart This document shows various volume measurements for 1000- and 1500-gallon Orenco injection-molded fiberglass septic tanks. The table below shows the volume split -in gallonage and per- centage -between the two compartments of a tank, depending on which rib a baffle is installed in. For example, if a baffle is inserted in Rib 3 in a 1500-gallon tank (as shown in the diagram), the first compartment will have 1118 gallons (63%) and the second com- partment will have the remaining volume: 667 gallons (37%). 1000-gallon tank 1500-gallon tank 1st compart. 2nd compart. 1 823 gal 69% 371 gal 31% 1414 gal 79% 371 gal 21% 2 675 gal 57% 519 gal 43% 1266 gal 71% 519 gal 29% 3 527 gal 44% 667 gal 56% 1118 gal 63% 667 gal 37% 4 379 gal 32% 815 gal 68% 970 gal 54% 815 gal 46% 5 230 gal 19% 964 gal 81% 821 gal 46% 964 gal 54% 6 n/a n/a n/a n/a 675 gal 38% 1110gal 62% 7 n/a n/a n/a iJ/a 526 gal 30% 1259 gal 70% 8 n/a n/a n/a n/a 378 gal 21% 1407 gal 79% 9 n/a n/a .n/a n/a 230 gal 13% 1555 gal 87% 1500-gallon tank 1st compartment Rib#: 9 8 7 6 5 Fiberglass Tank Volume Charts 4 1-800~348-9843 If you would prefer to calculate the volumes cumulatively, especially if you intend to use mul- tiple baffles, here are some important sectional volumes: • tank end to rib: • rib: • midsection (between ribs): • rib and midsection: • rib and baffle: 275 gallons 52 gallons 96 gallons 148 gallons 96 gallons These volumes appear in gallons on the upper right corner of the figure below. NOTE: Because the gallonage numbers above are rounded figures, some of the totals reached by adding them together may exceed the total volume of the tank. 3 Section volumes (in gallons): 148 96 52 275 ~ + + + I I I I I I l I I I I I I I I 2nd ~ompartment l I I I l I I 1 I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I l I I I 2 1 NCH-TNK-1 Rev. 2.0, © 6/03 Orenco Systems•·, Inc. Page 1 of2