[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

[7] Locking steel grade box with aluminum cover for security

• Aluminum treadbrite cover is not rated for automobile traffic
• Drop handle and flange holes for a padlock (by others)
• Specify internal bolted or poly plug cover as needed
• Shop iron oxide primer finish supplied on steel frame
• Often used in public areas
• Available with 32" or 36" square internal opening

[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] Not available

This accessory is not available at this time.

[10] Not available

This accessory is not available at this time.

[11] 4", 6", & 8 inch PVC vent heads

• Stainless steel insect screen inside (8 mesh standard)
• Slotted external poly guard
• Includes NPT female tank fitting and PVC adapter
• PVC riser pipe by others as needed for proper height

[12] Not available

This accessory is not available at this time.

[13] Not available

This accessory is not available at this time.

[14] High water level control

• Prevents riser "freeze-off" from overfilling tank above full level
• Diverts excess water slowly into backfill material
• Includes check valve & filters
• Includes NPT 2" female tank fitting
• Do not use when tank is connected to a well or city water line supply
• For truck water delivery only
• Often used on Fire Cisterns

[15] 4, 6, & 8 inch overflow assemblies

• Diverts excess water to remote daylight discharge area
• Includes swing check valve and heavy metal rodent guard
• Includes PVC stub pipe and hump hose rubber flex connector at tank
• PVC piping run by others

[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

[23] Stainless flex members with male tapered pipe threads for pressure inlet and pumped discharge

• Heavy clear vinyl jacket or stainless steel braid
• Includes 1 reinforced PVC schedule 80 pipe adapter
• Vinyl jacket version rated at 25 psi, allows maximum flexibility
• Braided jacket version rated at 75 psi, but is less flexible

[24] 4, 6, & 8 inch Hump Hose low pressure flex couplers for PVC stub pipe connections

• Rated for 25 psi working pressure
• Fits schedule 40 PVC pipe
• Connects to tank stub pipe
• Stainless clamps included
• Often used on wastewater treatment tanks, overflow connections, and rainwater collection inlet lines
• Install at or above full tank water level
• Not for use in bottom of tank discharge flex applications

[25] Darco brand Maxi-Flex coupler for low pressure applications

• Stainless body with PVC ends
• Far more flexible in all directions than traditional rubber types
• Suitable for seismic areas and expansive clay soils
• Commonly use as a discharge flex on Fire Service tanks
• Available with PVC flanges or socket ends
• Different configurations and PVC adapters are available
• Rated at 25 PSI working pressure only when buried below grade
• Price varies with fitting ends and adapters required

[26] Submerged water inlet filter

• Manway mount on brass 1 inch pitless adapter
• Uses universal filter cartridges
• Easily removed for filter change
• Includes 1" feed line stainless flex member and PVC adapter
• Includes adjustable bypass pressure relief valve
• Must be field installed
• Requires hole saw and grinder work on site
• Installation must comply with local plumbing codes

[27] Float valve water inlet control

• Manway mount on brass 1 inch pitless adapter
• Adjustable float arm for proper air space at top of tank
• Brass piping and backflow check valve included
• Includes 1" feed line stainless flex member and PVC pipe adapter
• Field assembly and piping required
• Requires hole saw and grinder work on site
• Installation must comply with local plumbing codes

[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

[29] Water level gauge - mechanically float actuated

• Requires no electric power
• Metal guage body with weather proof clear viewing lens
• Reads to 108 inches maximum water depth
• Includes NPT female tank fitting
• Must be field assembled and calibrated by the installer

[30] 1 & 2 inch brass pitless adapters

• Brass female pipe thread connections
• Rated at 75 PSI working pressure
• Includes braided stainless flex member & PVC pipe adapter
• Often used with submersible pumps or equipment
• Lift up slider to easily withdraw pump or equipment for service
• Field installation requires hole saw and grinder work on site

[31] Darco submersible bottom suction high pressure pump

• 120 VAC - 1/2 HP - 50 PSI - 20 GPM nominal discharge capacity
• Plugged port for optional pressure relief valve
• For household water supply use or low volume irrigation
• Assembly mounts on 1 inch pitless adapter in manway
• Lift up to easily remove pump
• Includes 1" ss flex member
• Installation requires hole saw and grinder work on site
• Use float tree and level control float switch kits (#32) as needed
• Installation must comply with local plumbing codes

[32] PVC float tree and level control float switch kits

• Sliding adjustable float position design
• Includes 2 mounts with stainless steel hardware
• Used to control pumping functions - up or down
• Includes one 3 wire, 12 amp (non mercury) SP/DT switch
• 1" PVC drop pipe by others
• Installation must comply with local electrical codes
• Additional float switches available

[33] Alarm panel for high level or low level water volume alert

• 120 VAC power required
• Sealed box mounts on post by tank or inside building
• Flashing red light and buzzer
• Alarm silence switch on outside surface of panel
• Includes one float tree and one universal float switch
• Field assembly required

[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