1

• 2000 gallon nominal capacity 
• Suitable for potable water
• NSF 61 listed high density polyethylene potable water approved resin - gray color  
• May be dry buried, no need to add water during backfill 
• Maximum soil cover depth 36"
• Empty ship weight 800 pounds per module 
• Price $1.25 / gallon - R 1/08 

 2

• Each module includes an 18" spool access riser with bolted cover, intended for burial 
• Installation requires a coarse sand bed and sand backfill to top of tank, followed by soil cover and mound at grade
• Avoid wet locations unless using deadman anchors or a bed subdrain to daylight
• Bypass excess rainwater to a remote discharge location  

3

20 inch I.D. segmented spool type polyethylene manway extension

• Each stackable flanged segment is 18 inches tall
• Gray color, UV stabile resin  
• Includes all bolts and gasket 
• Stainless steel & brass hardware
• Can be shipped individually  by UPS
• Price $307 per 18" section

 4

Standard 20" x 30" polyethylene manway extension for 36 inch
bury depth below grade

• Overlapping hinged cover with padlock hasp and rubber dust seal
• Gray color, UV stabile resin
• May be cut down for shallower bury - specify bury depth if other than 36 inches
• Tank lower entry diameter is 20 inches
• Upper portion inside diameter is 30 inches for shoulder room and easy access 
• Includes internal safety cover and poly rope lanyard  
• Price $347 

5

3 inch water level inspection hatch on manway cover with cross arms for padlock

• Aluminum Cam-Lock design
• Includes bolt-in cover fitting
• Used to visually check level
• May be used for refilling at 50 psi maximum pressure
• Price $117

 6

Locking grade box with aluminum treadbright cover for manway security

• 26" x 26" square inside size
• Choose internal bolted cover or poly plug with handle 
• Not automobile traffic rated
• Aluminum cover, drop down handle, and holes for padlock
• Freight additional if not shipped along with tank 
• Price  $350

7

Plug type cover to replace bolted cover on 20 inch I.D. spool risers

• Slip fit poly plug with handle
• Light weight but durable
• Not automobile traffic rated
• Not secure without grade box #6
• Choose either bolted or plug cover
• Price $86

 8

4 inch or 6 inch PVC vent head

• Removable stainless steel insect screen inside
• Slotted external poly guard
• Includes top hub adapter
• PVC riser pipe by others
• 4 inch price $148 
• 6" inch price $220

9

Fire hose refill 2.5 inch NST/F 
mounted on 6 inch vent

• Brass NFPA construction
• Fire hose thread with swivel and plug on lanyard
• Refill at 50 PSI maximum pressure
• Includes top hub tank adapter
• PVC riser pipe by others
• Price $560

 10

Inspection hatch on 6 inch vent

• Aluminum Cam-Lock design
• Drilled cross arms for padlock
• Used to visually or stick check water level
• Should not be used for refilling
• Includes top hub tank adapter
• PVC riser pipe by others
• Price $370

11

2 inch mini vent for manway covers

• Mounts on manway or spool with bolted cover 
• Includes 2 inch bolt-in fitting
• Stainless steel insect screen
• Louvered plastic guard 
• PVC riser pipe by others if increased height is needed 
• Price $60

 12

Overflow head assembly

• Diverts excess water to remote daylight discharge
• Includes swing check valve and galvanized steel rodent guard  
• 2 inch size includes stainless flex member and tank fitting
• PVC piping run by others
• 2 inch price $167
• 4 inch price $266
• 6 inch price $401
• 8 inch price $596 

13

Float valve water level control

• Manway mount on one inch brass pitless adapter 
• Adjustable float arm for proper air space allowance
• Brass piping and brass  backflow check valve
• Includes 1" feed line stainless flex member and PVC adapter
• Install to meet plumbing code 
• Must be field assembled
• Price $294

 14

Well water inlet filter

• Manway mount on one inch brass pitless adapter 
• Uses universal filter cartridges
• Includes 1" feed line stainless flex member and PVC adapter
• Includes adjustable bypass pressure relief valve
• Install to meet plumbing code
• Must be field assembled
• Price $404

15

1 inch brass pitless adapter

• Installed in manway collar just above the manway flange 
• Rated at 75 PSI working pressure
• Includes stainless steel flex member and PVC adapter
• Often used with submersible  mult-stage deep well style household pressure pumps
• Lift up slider to remove pump
• Price $146

 16

2 inch plastic quick disconnect

• Installed in manway collar
• 2 inch female pipe thread connection
• Rated at 25 PSI working pressure
• Includes ss flex member, PVC adapter, and 2" tank fitting
• Often used with low pressure single-stage dewatering pumps
• Lift up slider to remove pump
• Price $173

17

PVC float tree & float switch kit

• 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
• Some field assembly required
• Price $95
• Additional switches $62 ea.

 18

Submersible bottom suction
Darco pump

• 120 VAC - 1/2 HP - 50 PSI - 20 GPM discharge capacity
• Assembly includes 1 inch pitless adapter in manway
• Lift up on T-handle to remove pump from tank
• Includes 1" ss flex member
• Includes adjustable brass pressure relief valve
• Price $556
• For low water level pump shut down, add float tree kit $95  

19

Submersible dewatering type Low Pressure Darco pump

• 120 VAC - 3/4 HP - 80 GPM at 10 feet of head 
• Includes 2 inch quick coupler in manway collar
• Lift up on coupler to remove pump from tank
• Includes 2 " ss flex member
• Includes low water level pump shut down float switch
• Price $442

 20

Alarm panel for high level or
low level water volume alert

• 120 VAC power required
• Plastic weather tight alarm box mounts on post by manway or inside building 
• Red light and alarm buzzer
• Alarm silence switch on outside of box 
• Includes one float tree kit with one universal float switch
• Some field assembly required
• Price $212

21

Suspended pump mount and equipment platform

• 20" x 24" flat plastic surface
• Adjustable up or down and side to side
• Max. pump diameter 9 inches 
• Rated for 100 lbs. max. weight
• Field drill plastic platform to mount equipment 
• Shield tank wall when drilling downward through platform
• Price $164

 22

High level water control

• Prevents "freeze-off" from overfilling above full level
• Diverts excess water into backfill
• Includes back-flow check valve for potable water applications 
• Includes inner & outer foam filter inserts
• Use on systems filled by tank truck or water delivery service only (do not use with wells or city water supply lines)
• Price $96

23

Bolt-in fittings with internal NPT female threads   

• Polypropylene bolt flanges 
• Both fitting sides have NPT internal female threads
• Rated for 25 psi maximum
• Stainless bolts & gaskets included
• Field install with hole saw and battery powered drill
• Must fit flat both inside and outside for proper seal 
• Install nuts to inside of tank 
• 2" price $39
• 2" all stainless / 75 psi $
• 3" price $52
• 3" all stainless / 75 psi $
  

 24

Stainless flex members with tapered pipe threads for water inlet and pumped discharge

• Heavy clear vinyl jacket or stainless steel braid
• Includes one sch. 80 reinforced PVC pipe adapter
• NOTE pressure ratings below
• 1inch - braided / rated at 75 psi working pressure / $90
• 2" vinyl jacket - 25 psi / $105
• 2" braided -  75 psi / $129 
• 3" vinyl jacket - 25 psi / $159
• 3" braided - 75 psi / $231 

25

Pipeline adapters at top or bottom of modules for inlet or discharge applications

• 4", 6", or 8" PVC pipeline connection sizes 
• Includes rubber sealing sleeve and stainless steel twin clamps 
• Adapters are rubber and eliminate the need for flexible members at these fitting points
• 4" PVC socket price $161 
• 6" PVC socket price $223
• 8" PVC pipe stub price $103

 26

Float and dial type
water level gauge

• Requires no electric power
• Reads the inches of water depth in storage tank
• Metal gauge body and weather proof clear viewing lens
• Must be field assembled and calibrated by the owner 
• Price $376
  

27

6 inch NST- Male dry fire hydrant

• Threaded aluminum cap with cable lanyard
• Removable plastic strainer 
• 45, 90, 180 degree schedule 40  PVC top fitting choice 
• Anti-vortex plate at foot of 6" draw pipe is included
• Includes top hub tank adapter 
• Some field assembly required 
• Price $303
• Add for 6" female swivel $90

 28

Top hub accessory adapter  

• Includes rubber seal and stainless steel twin clamps
• Choose either 4 or 6 inch vertical riser pipe size
• Includes PVC socket coupling above rubber seal
• PVC riser pipe by others 
• Price either 4" or 6" size $80
  

29

Antibuoyancy anchor cable kit

• One kit required per module
• Includes 2 galvanized 3/8 inch steel cables with 6 cable clamps
• Includes 6 rubber tank protection guide sleeves
• Includes Darco reusable cable tensioning tool (1 per order)
• Price $140 per module
  

 30

Cardboard caisson tubes for making deadmen on site 

• 2 forms required for each  module to be anchored
• 12 inch diameter by 90 inches long
• Rebar and concrete by others
• May be shipped with tank or purchased by the installer at a local lumber yard 
• Price per pair $80
  

31

Clarifier inlet upgrade package

• Includes nylon leaf and trask basket 
• Washable poly filter pack 
• Inlet pipe stub 6 inch SDR 35 
• Requires additional 6" vent
• No top interconnect normally installed with this assembly
• Price $996 (plus one module and one 6 inch vent)
  

 32

Leaf and debris basket for gutter downspout leaders  

• Bury with lid exposed above grade
• Locate in roof leader between downspout and storage tank
• Debris basket easily removed for periodic cleaning
• Accepts smooth bore 4" or 6" PVC pipe
• Field preparation and assembly required
• Rubber sealing sleeves and hose clamps by others
• Freight additional if not shipped with tank order
• Price $325 

33

Manway grommet for rain water
inlet pipe connections 

• Not intended for potable water 
• Includes rubber grommet and stainless worm clamp
• Fits SDR 35 or schedule 40 PVC plastic pipe
• Choose 4" or 6" pipe size
• Field installation recommended
• Price for either size $26