Rain Water Harvesting Tanks

NEWSLETTER SIGN-UP

Sign up for our newsletter and receive helpful water saving tips and be the first to know about upcoming sales.

Xerxes Underground Nonpotable Water Information

FIBERGLASS UNDERGROUND TANKS
FOR NONPOTABLE WATER APPLICATIONS

As consumers and industries become increasingly accountable to meet ecological requirements for underground collection and storage of products and materials, Xerxes Corporation continues to be in the forefront with innovative solutions. Xerxes fiberglass-reinforced plastic (FRP) tanks offer a superior option for underground storage of nonpotable water. Xerxes offers customers a maintenance-free, cost-effective fiberglass tank for nonpotable water (that is, water not fit to drink), such as rainwater, standby fire-protection water, field-irrigation water and gray water (for example, residential dish-washing water, laundry water and bath water).

Xerxes` seven manufacturing facilities, strategically located throughout the United States, give customers prompt delivery and quality service. Xerxes offers a tank of standard design as well as custom-designed tanks for nonpotable water applications, offering great flexibility for customers` needs.

Typical Applications

  • Fire-protection systems
  • Irrigation systems
  • Water recirculation
  • Cooling water
  • Car washes
  • Emergency water supplies

Features

  • Rustproof, long-lasting fiberglass
  • Integral-rib design for added strength and robustness
  • Easy to ship and easy to install
  • Testable onsite and underground
  • Manufactured to applicable requirements of UL 1316
  • Gauge plates under all openings
  • Standard and custom designs
  • Able to be reinstalled after recertification
  • Single-wall, double-wall, triple-wall
  • 600-gallon to 50,000-gallon sizes

Optional Features

  • Manways (22-inch, 30-inch, 36-inch diameter)
  • Manway extensions (variable length)
  • Fiberglass manway covers
  • Stainless-steel manway bolting hardware
  • Flanged and gusseted nozzles
  • PVC couplings
  • Ladders (FRP or aluminum)
  • FRP hold-down straps
  • Pump platforms
  • FRP fill tubes
  • Concrete deadmen

Guide Specifications - Single-Wall FRP Tank for Nonpotable Water Use

SHORT FORM:

The contractor shall provide single-wall fiberglass-reinforced plastic (FRP) underground storage tank as shown on tank drawings. Capacity, dimensions, fitting sizes and locations, and optional accessories shall be as shown on tank drawings. The tank shall be as manufactured by Xerxes Corporation. Tank shall be installed according to Xerxes` current installation instructions.

LONG FORM:

Part I: General

1.01 Quality Assurance

  1. Acceptable Manufacturers: Xerxes Corporation, Minneapolis, Minnesota
  2. Manufacturing Standards:
    1. Manufacturer shall be able to provide documentation that the tank shell has been built to the applicable requirements of Underwriters Laboratories Standard UL 1316.
    2. Tank manufacturer shall be in the business of manufacturing tanks to UL 1316 standards.
  3. Materials:
    1. Tank shall be manufactured of 100% resin and glass-fiber reinforcement, with no sand fillers and no exposed glass fibers.

1.02 Submittals: Contractor shall submit to the engineer ______ copies of shop drawings for each tank and ______ copies of manufacturer`s literature.

Part II: Products

2.01 Single-Wall Fiberglass Underground Tanks

  1. Product-Storage Requirements:
    1. Tank shall be vented to atmospheric pressure as the tank is not designed as a pressure vessel.
    2. Tank shall be designed for maximum product-storage temperature of 150o F.
  2. Loading Conditions: Tank shall meet the following design criteria:
    1. Internal Load: Tank shall withstand a 5-psig air-pressure test with 5:1 safety factor. Installer shall test each tank for leakage prior to installation. Maximum test pressure is 5 psig (3 psig for a 12-foot tank).
    2. Vacuum Test: To verify structural integrity, each tank up through 10-foot diameter shall be vacuum tested by the manufacturer at the factory to 11.5 inches of mercury.
    3. Surface Loads: Tank shall withstand surface H-20 axle loads when properly installed according to manufacturer`s current installation instructions.
    4. External Hydrostatic Pressure and Burial Depth: Tank shall be capable of being buried in ground with 7 feet of overburden, the hole fully flooded and a safety factor of 5:1 against general buckling.
    5. Tank shall support accessory equipment-such as internal pump platform, drop tubes, submersible pumps and ladders-as shown on tank drawings and when installed according to tank manufacturer`s recommendations.

2.02 Accessories

  1. Optional Anchor Straps:
    1. Straps shall be FRP anchor straps as supplied by tank manufacturer.
    2. Number and location of straps shall be shown on tank drawings.
  2. Optional Manways:
    1. All manways shall be flanged and 22-inch-i.d., complete with UL-listed gaskets, bolts and covers. (Optional 30-inch- and 36-inch-i.d. manways are also available on some larger size tanks.)
    2. Location(s) shall be shown on tank drawings.
    3. Optional manway extensions shall be FRP.
  3. Optional Fill Tubes:
    1. Fill tubes shall be FRP and factory-installed, or contractor-supplied and contractor-installed aluminum.
    2. Location(s) shall be shown on drawings.
    3. FRP fill tubes shall be 4-inch-diameter, with a 6-inch x 4-inch double-tapped reducer bushing, and include a 6-inch NPT fitting. FRP fill tubes can be installed in manway cover or tank wall.
    4. Aluminum fill tubes (contractor-supplied) shall fit directly into a 4-inch NPT fitting.
    5. Tubes shall terminate a minimum of 4 inches above the bottom of tank.
  4. Gauge Plates:
    1. Gauge plates shall be installed under each service fitting and manway opening.
  5. Optional Ladders:
    1. Ladders shall be the standard ladder as supplied by tank manufacturer.
    2. Ladder material (fiberglass or aluminum) shall be as shown on tank drawings.
  6. Internal Optional Pump Platform:
    1. Contact tank manufacturer with pump details.
  7. Fittings:
    1. All threaded fittings shall be constructed of carbon steel.
    2. All standard threaded fittings shall be half-couplings, and of 2-inch, 4-inch or 6-inch diameter. Reducers are to be used for smaller sizes where shown and provided by contractor.
    3. All fittings shall be located on top centerline.
    4. All NPT fittings shall withstand a minimum of 150 foot-pounds of torque and 1,000 foot-pounds of bending, both with a 2:1 safety factor.
    5. All optional FRP nozzles shall be flat-faced, flanged and gusseted.
    6. All optional FRP nozzles shall conform to ANSI B16.5 150# bolting pattern.

Part III: Execution

  1. Testing and Installation:
    1. Tank shall be tested and installed according to manufacturer`s current underground storage tank installation instructions.

Part IV: Warranty

Warranty shall be manufacturer`s current standard warranty.

Tank Data

Nominal Capacity (Gallons)

Diameter

Length

Shipping Weight (Lbs.)

600
1,000
2,000
4,000
5,000
6,000
2,000
3,000
4,000
5,000
6,000
8,000
10,000
12,000
10,000
12,000
15,000
20,000
25,000
30,000
35,000
40,000
20,000
25,000
30,000
35,000
40,000
48,000
50,000

4`
4`
6`
6`
6`
6`
8`
8`
8`
8`
8`
8`
8`
8`
10`
10`
10`
10`
10`
10`
10`
10`
12`
12`
12`
12`
12`
12`
12`

6`-11 7/8"
11-3 7/8"
13`-5 3/4"
21`-11 1/8"
26`-5"
30`-8 3/4"
9`-1/2"
12`-3"
15`-1/2"
17`-8 1/2"
20`-6 1/2"
26`-1/2"
31`-6 1/2"
37`-1/2"
21`-5 1/4"
24`-1/4"
29`-5 3/4"
37`-8 3/4"
47`-6 3/4"
55`-9 3/4"
64`-3/4"
73`-8 1/4"
29`-4"
35`-7"
43`-1"
49`-4"
54`-4"
65`-7"
68`-1"

500
700
1,200
1,600
1,900
2,200
900
1,100
1,400
1,700
2,000
2,500
3,000
3,500
3,300
3,700
4,600
5,800
7,700
9,300
10,400
12,000
9,100
10,500
12,400
13,800
14,900
17,600
18,200

 

Limited Warranty: Underground Water Tanks

Xerxes Corporation ("Xerxes") warrants to ("Owner") that our underground storage tanks for potable water, if used in accordance with Xerxes` published specifications, operating guidelines, and limited to the storage of potable water, and if installed, operated and maintained in the United States according to Xerxes` published installation instructions and all applicable laws and regulations:

  1. Will not fail for a period of thirty (30) years from date of original delivery by Xerxes due to natural external corrosion.
  2. Will not fail for a period of thirty (30) years from date of original delivery by Xerxes due to internal corrosion, provided the tank is used solely for potable water, the customer provides Xerxes with written notice of its intended use before the tank is manufactured, and the water is stored at temperatures not to exceed 150oF.
  3. Will not fail for a period of thirty (30) years from date of original delivery by Xerxes due to structural failure, (defined as spontaneous breaking or collapse caused by material defects in materials or workmanship). Any post installation repairs or tank alterations must be performed by Xerxes or its authorized contractor.
  4. Will meet Xerxes` published specifications and will be free from material defects in materials and workmanship for a period of one (1) year following the date of original delivery by Xerxes.

If any tank is to be removed from an installation, moved to Owner`s new location and is intended for active service at the new location, the tank must be recertified by Xerxes in order to maintain the warranty as originally extended. The foregoing warranty does not extend to tanks damaged due to acts of God or tank failures caused, in whole or in part, by misuse, improper installation, storage, servicing, maintenance, or operation in excess of their rated capacity or contrary to their recommended use, whether intentional or otherwise, or any other cause or damage of any kind not the fault of Xerxes. Xerxes does not warrant any product, components or parts manufactured by others. Owner`s sole and exclusive remedy for breach of warranty is limited at Xerxes` option to: a. repair of the defective tank, b. delivery of a replacement tank to the point of original delivery, or c. refund of the original purchase price. A claimant must give Xerxes the opportunity to observe and inspect the tank prior to removal from the ground or the claim will be barred. All claims must be made in writing within one (1) year after tank failure or be forever barred.

THE FOREGOING WARRANTY CONSTITUTES XERXES` EXCLUSIVE OBLIGATION AND XERXES MAKES NO OTHER WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, WITH RESPECT TO THE TANK OR ANY SERVICE, ADVICE, OR CONSULTATION, IF ANY, FURNISHED TO OWNER BY XERXES OR ITS REPRESENTATIVES, WHETHER AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE. THE REMEDIES SET FORTH IN THE ABOVE WARRANTY ARE THE ONLY REMEDIES AVAILABLE TO ANY PERSON OR ENTITY FOR BREACH OF WARRANTY OR FOR BREACH OF ANY OTHER COVENANT, DUTY, OR OBLIGATION ON THE PART OF XERXES. XERXES SHALL HAVE NO LIABILITY OR OBLIGATION TO ANY PERSON OR ENTITY FOR BREACH OF ANY OTHER COVENANT, DUTY OR OBLIGATION UNDER THIS WARRANTY EXCEPT AS EXPRESSLY SET FORTH HEREIN. IT IS EXPRESSLY AGREED THAT THIS WARRANTY DOES NOT FAIL OF ITS ESSENTIAL PURPOSE. XERXES SHALL HAVE NO LIABILITY FOR TANK INSTALLATION OR REMOVAL COSTS, ENVIRONMENTAL CONTAMINATION, FIRES, EXPLOSIONS OR ANY OTHER CONSEQUENCES ALLEGEDLY ATTRIBUTABLE TO A BREACH OF WARRANTY, OR INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY DESCRIPTION, WHETHER ANY SUCH CLAIM OR DAMAGES BE BASED UPON WARRANTY, CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER TORT, OR OTHERWISE. IN NO EVENT SHALL XERXES` TOTAL LIABILITY HEREUNDER EXCEED THE ORIGINAL PURCHASE PRICE OF THE TANK WHICH GAVE RISE TO SUCH LIABILITY.

Effective 1/15/98

American Tank Company, Inc.
Tanks & Fluid Handling Equipment

Water Ready Emergency Preparedness Ozone Water Treatment