[1] Fiberglass manway extensions for 3 foot standard bury depth

• Standard inside diameters are:  24″ and 30″
• Stainless steel hardware and gaskets included
• Specify bury depth if other than 36 inches
• Slip-In poly plug covers available for manhole or grade box applications

[2] 4 inch I.D. cam-lock inspection hatch for bolted FRP covers

• Cast aluminum with brass closure arms for padlock
• Includes NPT female fitting on manway cover
• Used to visually check level without removing cover bolts
• May be used for refilling at 50 PSI maximum pressure
• May be extended vertically with a 4-inch pipe

[3] 30 inch I.D. fiberglass manway with easy access hinged cover

• Available only on 24″ and 30″ ID sizes
• Hinged overlapping “shoe box” style cover conforms to AWWA potable standards
• Includes stainless hardware and manway gasket
• Hinged cover flanges have holes for a padlock (by others)
• Specify bury depth if other than 36 inches
• Less secure than bolted design against forced entry by vandals

[4] 48 inch I.D. weather tight manway enclosure vault for 36 inch bury depth

• Overlapping domed dust cover with 2 stainless handles
• Chain set and lock are not included (by others if additional security is needed)
• 20 inch ID internal manway recommended for space
• Manway may be centered or offset inside enclosure to make room for tank fittings
• Some field assembly required
• Specify bury depth if other than 36 inches

[5] 24 and 30 inch O.D. ring collar for low cost plastic culvert manway riser pipe

• Plastic corrugated culvert pipe riser not included (by others)
• Cover at grade not included
• Commonly used on septic tanks and rain collection tanks
• Fiberglass pipe risers and plug covers are available if requested
• Caulk at joint between tank and riser for groundwater tightness
• Use locking grade box #7 for security
• Field assembly required

[6] Fiberglass tank ladders with mounting brackets installed

• Standard OSHA designs
• Stainless steel hardware
• Shipped loose and must be field assembled inside tank
• Specify NSF potable water use when appropriate

[8] 20″ x 30″ polyethylene manway extension for 36 inch standard bury depth below grade

• Gray color, UV resistant
• Overlapping hinged cover with dust seal and padlock hasp
• Easy access with ample knee and shoulder room
• Tank entry opening 20″ ID
• Upper portion inside diameter 30 inches at hinged cover
• Includes internal safety cover at tank entry point

[9] Aluminum H-20 Ring and Cover

• Manhole assembly for concrete slabs over tanks
• Available in 30″, 33.5″, and 38″ clear openings
• Light weight aluminum construction
• Drop down handle for easy lifting
• Rotary lock mechanism in cover
• Freight additional by common carrier

[16] 6 inch NST- Male dry fire hydrant for suction water supplies

• Aluminum NFPA construction with metal cap and chain lanyard
• Removable strainer plate
• 45, 90, or straight PVC fitting choice below head
• NFPA anti-vortex plate and 6 inch internal draw pipe-factory installed
• Also includes 6 inch female NPT tank fitting, PVC adapter, and PVC elbow
• PVC riser pipe by others
• Female swivel and Storz hydrant heads also available
• Some field assembly required

[17] Siamese refill 2.5″ X 2.5″ NST with clappered female swivels

• Brass NFPA construction
• Includes top and bottom adapters for PVC riser pipe
• Includes 4″ NPT tank fitting
• Refill pressure 50 PSI max.
• PVC riser pipe by others
• Some field assembly required

[18] 4 inch through 12 inch flanged fittings with gussets

• May be installed anywhere on tank heads or shell
• Standard ANSI 150# flat flange face and bolt pattern
• Gasket and bolts by others
• Available in standard pipe sizes through 12 inch
• Tangential shell placement at additional cost
• Consider using flexible pipeline couplings at all tank fittings

[19] Anti-vortex blades in bottom suction fittings

• Used on any outlet line feeding a pump or fire hydrant
• Decreases water swirl to improve flow rate when tank nears empty
• Available on flanged or threaded fittings of all sizes
• Not NFPA approved as an anti-vortex device

[20] NPT tapered fiberglass female pipe thread full and half couplings

• May be installed anywhere on tank heads or shell
• Available in standard pipe sizes through 8 inch
• Use full couplings when threads are required both inside and outside the tank

[21] 4 inch through 16 inch PVC stub pipe bonded through tank head or shell

• May be installed anywhere on tank heads or shell
• Tangential placement at additional cost
• Connection point for piping both inside or outside tank
• Consider using flexible pipeline couplings at all tank fittings
• Suitable for connection with a rubber ring mechanical joint (MJ) or compression fitting

[22] Flat faced single hump rubber flex member for flanged fiberglass fitting applications

• Mates up with standard 150# ANSI flange and bolt pattern
• Includes one gasket & stud kit for tank side of coupling only
• Includes poly protective wrap
• Rated at 75 PSI working pressure
• Available in standard pipe flange sizes through 12 inch
• Not NSF listed but suitable for potable water applications

[28] Pump mounting platform bonded to tank floor

• 24″ x 24″ flat fiberglass surface
• Raised 6″ above floor for bolt access below platform
• Rated for 250 pound maximum pump weight
• Field drill to mount equipment or pump guide rail
• Shield tank wall when drilling downward through platform

[34] Fiberglass “half round” deadman forms for on-site pouring

• 12 feet long / may be sawed down for shorter applications
• Ships along side tank on trailer
• Reuseable if oiled before pouring concrete
• Follow Darco deadman size and rebar location details in manual
• Must be fully supported with compacted soil before pouring
• Use split cardboard caisson tubes when deadmen must be poured before tank delivery
• Caisson tubes are available locally at most lumber yards

[35] Anchor strap and cable kits

• Each kit contains 1 fiberglass strap with forged steel eyes or hooks at both ends
• Includes 2 Darco ratcheting strap tensioning tools (per tank)
• Includes 2 galvanized ½” steel connection cables and 6 clamps per strap assembly
• No turnbuckles are required
• Stainless cable and fabric straps are available upon request

[36] Bonded 24″ dia. bottom sump

• One piece – molded into tank
• 24″ in diameter x 12″ deep
• Suitable to locate submersible pumps weighing up to 150 pounds
• Allows complete tank volume discharge through suction pipe or pump
• Can incorporate an anti-vortex plate for NFPA suction hydrant compliance when required

[37] Bolt-on 24″ diameter bottom sump

• Allows complete tank volume water usage
• Often used for submersible or vertical turbine pumps
• Bolted design with 32″ total depth below bottom of tank
• 24″ inside diameter with tapered lower section