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1.3.7.4.3.We recommend that you use one of our strap systems with 1.3.7.4.7.See Table 1.5 fortypicaI deadmen dimensions fortanks our factory-supplied deadmen. (other than 10-foot-diameter tanks with a capacity greater than 25,000 1.3.7.4.4.When installing any size tank,and when using our D-ring/D- gallons[9ty tank 5,000 iters],giventhefollowingscenario: ring anchor straps and prefabricated deadmen,the deadmen are to be anemt[91-c placed so that their tops are even with the bottom of the tank.See Figure 0 groundwater to graburde 1-6 1-6 and Table 1-4 for anchor-point dimensions when using our deadmen. 1 oundwater t sump • For 8-foot-,l0-foot-and 12-foot-diameter tanks,an option when using 1containmentsump D-ring/D-ring straps is to place the deadmen on the bedding so the bottoms of the deadmen are even with the bottom of the tank. • This is not recommended for 4-foot-and 6-foot-diametertanks. Tank Diameter Typical Deadmen Dimensions(Width x Depth) 1.3.7.4.5.The width and thickness of a deadman depends 6-foot 12"[30 cm] x 12"[30 cm] on the following: 8-foot — 12"[30 cm] x 12"[30 cm] • tankdiameter _-----.__ • water-table elevation 10-foot 18"[46 cm] x 9"[23 cm] • number of containment sumps 12-foot 36"[91 cm] x 8"[20 cm] • burial depth 1.3.7.4.6.The total length of a deadman(on each side of the tank) 1.3.7.4.8.Tanks with more than 1 containment sump and 10-foot-di- is typically equal to the length of the tank. ameter tanks with a capacity greater than 25,000 gallons[95,000 liters] • Our prefabricated deadmen come in various lengths. may require eithera deeper burial or deadmen • Deadmen are to be butted together end to end on each side of the Iargerthanthose shown inTable 1-5.Contact technical support tank when multiple sections are used. (eng.su000rt@zcl.com)for further information. • Depending on the installation,multiple deadmen may be required I.3.7.4.9.Theminimum spacing between tanks must beincreased and are to adhere to the following: to accommodate deadmen. o The total length of the assembled deadmen must be appropriate forthe installed tank. 1.3.7.4.10.Always provide sufficient clearance to allowthe • Each section of assembled deadmen must contain at least two deadmen to be set outside the tank"shadow."See section 1.3.5 balanced anchor points. fortank spacing information. • An equal numberof deadmen is required on both sides of the tank. 1,3.7.4.11.For placement of prefabricated deadmen,• Our prefabricated deadmen are supplied with 3/4-inch-diameter see Figure 1.2. galvanized adjustable anchor points(subsequently referred 1.3.7.4.12.Some contractors use the deadmen as a construction to as anchor points).See Figure 1-10. guide for proper depth of bedding. These anchor points protrude up through the slots in the deadmen 13.7.4.13.Ifour prefabricated l8-inch-[45cm]wide low-profile and are temporarilysuppotedwithcotterpins. deadmen are used as a construction guide,they may need to be A WARNING elevated.This can be accomplished by putting 3'hinches[9cm]of Only usethe anchor points when lifting and positioning the backfillora4x4 piece of wood(orequivalent)underneath sothat deadmen.Aspreader bar may be required to lift longer sections the top of the deadmen is 12 inches[30 cm]off of the bottom of the of deadmen.Use guide ropes to guide the deadmen when lifting, excavation.See Figure 1-11. Failure to do so could result in death or serious injury. - r - Backfill 18"Wide Low Profile Deadmen Chain or Sling n a 31h" a 4x4 600 to 900 Anchor Point Anchor Point = IIII-11111=Till —IIIII—IIII=IIS NOTE:Low-profile deadmen are not 12 inches[30 cm]high. Alignment Slot Alignment5lot 1.3.7.5.TURNBUCKLES 1.3.7.5.1.We also offer turnbuckle that will connect the deadman anchor pointto the FRP anchor strap.See Figure 1$. When the deadman is properly positioned,this will eliminate the use of wire rope.See section 1.3.7.2 for more detail on anchor straps. 12 I: PLANNING FOR INSTALLATION