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deadman is k langth of tank on each side #6 re -bars evenly smooth radius — rebar anchor poir centered width I Deadman AncaL The weight of ov rden on top of the deadman and tank provides the anchoring force. Lay deadman along each side and parallel to tank. The tank must not 'over- shadow' the deadman anchor. Clamp wire with at least three clamps around deadman and through end of strap. Deadman are made with reinforc- ed (246 rebars) concrete. The cross section dimensions may vary depending on burial depth. (See OCF Pub. 3 -PE -9632 for details.) If burial depth is 24 deadman size is as follows: Tank Min. Diameter Height Width* 4' 6" x 6" 6', 8' 12" x 1211 10' 12" x 18" 12' (See OCF Pub. 3 -PE -9632) "A round cross section can be substituted if the diameter equals or exceeds the deadman width. When using deadman anchors in multiple tank installations each tank will require two deadmen. If one deadman is used for adjacent tanks it must be doubled in width. A separate anchor point must be provided for each strap. Rebar anchor points are incorporated with their legs anchored under the re -bar reinforcement. Spacing for anchor points is determined bythe number of anchor points shown on tank drawings. An anchor point can be fabricated from rebar as follows: Min.Rebar Tank Diameter Rebar Size (1 strap/anchor point) Width 41,61 #6 41/2" 8' #8 8" 101,12' #10 121/2" Turnbuckles (optional) Hook, Jaw or eye -type turnbuckles (drop forged) may be used in place of all or a portion of the wire rope described in this section. All Anchoring Methods Minimum per anchor location. Tank Diameter 4', 6' 8', 101, 12' Drop -forged Turnbuckle Diameter: Hook Type 3/4" 11/4 Jaw Type 1/2" 3/4„ Eye Type 1/2" 3/4" Wire Rope Diameter: 6 x 19 3/b" t/2" (improved plow steel) Do not use wire eyebolts or bent steel eyebolts Note: TANKS INSTALLED WITH BACKFILL TO TOP OF TANK, BUT WITHOUT BACKFILL TO GRADE SHOULD BE COMPLETELY FILLED WITH WATER OR PRODUCT AS BALLAST. DO NOT PLACE WATER OR PRODUCT IN TANK UNTIL BACKFILL IS EVEN WITH TANK TOP. Fiberglas tanks can also be anchored safely by using burial depth and a surface slab to offset the buoyancy factors. For alternate anchoring methods refer to Owens-Corning Fiberglas publication 3 -PE -9632. Tanks with Sumps When installing a tank equipped with a sump, excavating and bed- ding must be modified to provide a 12" deep x 24" diameter hole centered at the sump location. After the tank is placed, the void surrounding the sump is to be hand backfilled and hand tamped prior to adding backfill around the tank. Pub. No. 3 -PE -6304-M Litho in U.S.A., August, 1987 External ernal Piping The pump and attached piping must be free to move with the tank. Use a fill box or street box to isolate t"�r'g fPOR1 traffic slabs. the piping from the traffic pad. Take precaution during construc Internal piping tion to ensure no damage occurs to the exposed piping and fittings. 4-10' 12' Internal Piping dia. dia. Internal piping must be a minimum 4^ 6^ of 4" from the tank bottom (12' in. min. diameter tanks require at 6" / minimum clearance). 11) Filling Tanks Do not f I I I until backfill is to top of tank . Never add product or water for hold-down in dry hole conditions until backfilling is completed. (Exception—See installation Procedure -Wet Hole) 1) Venting All tanks must be vented, as tanks are designed for operation at atmospheric pressure only, except for use with vapor recovery systems provided the pressure or vacuum does not exceed 1 psi. The vent opening should be the same diameter or larger than the piping to remove product. If delivery vehicle uses pumps to fill the tank, do not use restrictive vents (ball float valves, etc) that may close off vent and overpressurize tank. 13) Manway and Manway Extensions The standard manway is 22" in diameter and has a load bearing capacity of 1200 lbs. Optional heavy duty manways have a load bearing capacity of 2400 lbs. Fiberglas heavy duty manways must be specified on tanks equipped with helical heating coils, agitators or pumps with a total downward load of greater than 1200 lbs. but less than 2400 lbs. 14) Manway Risers The Fiberglas Manway Riser provides a non -corroding, spacious access from a manhole box and cover. Since the bottom is open, the manway riser will fill with water as water surrounds it on the outside. Traffic areas require a reinforced concrete traffic pad. A maximum of 2 manway risers maybe used with tank sizes of 8000 gallons and larger; only one riser is permitted with tanks sizes less than 8000 gallons due to possible buoyant forces. The riser must be installed with a 6" minimum clearance from the top of the tank. The bottom of the riser should be supported with 2" x 4" x 3' minimum wood pieces. Additional data on manways, extensions, and risers may be found in OCF Pub. 3 -PE -6312. 15) Barricades Tank area must be barricaded to prevent any vehicle travel over the tanks until installation is complete. 16) For Additional Information On Other Installation Details. Specific Procedures for Encasing a Tank in Concrete or Adding Tanks to Existing Installations are detailed in 3 -PE -9632. In addition, alternate installation techniques are detailed in OCF Pub. 3 -PE -9632. If you have an installation situation that is not fully addressed in these instructions, contact your local Fiberglas Tank Sales Representative. If you are unable to contact your local representative, call: Fiberglas Tank Installation Manager Toledo, Ohio (419) 248-7371 Fiberglas Tank Field Services Supervisor Toledo, Ohio (419) 248-6196 OWENS-CORNING FIBERGLAS CORPORATION Non -Corrosive Products Division Fiberglas Tower, Toledo, Ohio 43659 Copvriaht < 19870wens-Cornina Fiberotas Corporation—att rights reserved.