When safety is on the line, there’s no room for compromise with your fire tank. Water Storage Tanks, Inc. provides industry leading fire protection tanks, offering a cost-effective and dependable solution for fire suppression systems. Made entirely in the U.S., our CorGal® fire protection tanks are built to last and offer an industry leading structural warranty. Our tanks are engineered to deliver uncompromised quality and reliability for your fire protection needs.
Fire Protection Tank (Miles Updates 2)
Fire Protection Tanks
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Why Choose CorGal Fire Protection Tanks
Cost-Effective Compliance
Our fire protection tanks provide an economical alternative to concrete tanks, welded steel tanks, or costly upgrades of municipal water infrastructure. Engineered with corrugated galvanized steel, CorGal tanks (Corrugated Galvanized Steel) deliver the strength, durability, and compliance required to meet local Fire Marshal (FM) and Authority Having Jurisdiction (AHJ) approvals while reducing overall project costs.
Standing the Test of Time
A fire tank from Water Storage Tanks, Inc. is manufactured to stand the test of time, delivering reliable fire protection through proven materials and experienced craftsmanship. Every CorGal fire tank is made in the U.S. and backed by an industry leading 30-year manufacturer’s structural warranty. This best-in-class warranty reflects our confidence in a premium product that is custom-designed and engineered for your project.
Engineered for Excellence
Every CorGal fire tank is engineered to be site-specific, making your fire protection tank a unique and one-of-a-kind solution. Backed by comprehensive site-stamped structural design calculation packages (SDCP) from a licensed engineer, our fire protection tanks are proven to comply with and often exceed the requirements of:
- NFPA 22: Standards for water tanks used in fire protection systems, including load calculations, appurtenance requirements, wind/seismic load requirements, and wind/seismic load resistance.
- NFPA 1142: Water supplies for suburban and rural firefighting.
- ASCE 7: Minimum design loads for wind, seismic, snow, and other conditions.
- Risk Category IV: Critical infrastructure requirements for essential structures per IBC 1604.5.
Every Water Storage Tanks, Inc. CorGal fire protection tank is built to withstand extreme conditions, such as high winds of at least 110 MPH and up to seismic design category F activity, ensuring reliable performance when it matters most.
Custom Solution for Every Application

Urban & Rural Fire Protection
Whether you’re enhancing fire safety in a dense urban area or meeting fire code requirements in a remote location, our fire tanks are customizable to suit any project. With a wide range of sizes and accessories, we ensure every fire tank fits seamlessly into your infrastructure.

Dual-Use Fire Protection Tanks
Maximize your investment with dual-use fire tanks designed to supply water for other applications aside from fire suppression. Utilizing your tank to perform multiple functions for your home or business is a great way to help reduce costs and reach your sustainability goals. Our CorGal Fire Protection tanks can be used for stormwater retention, rainwater harvesting, irrigation, signage, and many other uses in conjunction with their primary responsibilities.

Eco-Friendly and Sustainable Options
As a company committed to creating more eco-friendly solutions, our fire protection tanks are designed with sustainability in mind. Every CorGal tank helps conserve water resources, ensure dependable fire safety, and reduces strain on municipal water supplies, all while promoting efficient and responsible water management.

CorGal Fire Tank Specifications
We offer NFPPA 22-equivalent* fire tanks in capacities ranging from 700 to over 1,000,000 gallons and diameters from 6 to over 72 feet. For capacities and sizing larger than these, please reach out, and we will customize a fire tank just for you.
Each fire protection tank is modular, allowing for easy on-site transportation and assembly. Alternative options can be expensive to ship or have prohibitive build times that can delay your project. Once designed and manufactured, our CorGal tanks can be shipped and assembled in a matter of days, not months.
Our corrugated A572-grade G-115 hot-dipped galvanized steel exterior offers a minimum of 20-gauge sidewalls and ranges to a 13-gauge or heavier base. CorGal steel provides Water Storage Tanks, Inc. with unmatched durability and strength when compared to other steel, bolted tanks.
Want to learn more about our CorGal tanks? Explore our CorGal® tank sizing options, including water tank drawings, gallon capacity, diameter, height, roof options, 3D models, CAD files, and more!
Our Interior Flexible Membrane Liner Options Include:
- PVC Reinforced Liners – Designed for long-lasting water containment with a minimum of 24 mil thickness.
- NSF-61 Certified Potable Liners – For dual-use and potable water containment applications.
- XR-3 Geomembrane Liners – Intended for industrial use and handles mildly corrosive applications.
- Non-Potable Liners – Cost-effective solutions for fire suppression storage.
*Corrugated bolted steel tanks are considered ‘Equivalent’ in reference to section 1.4 of NFPA 22. If you’d like to learn more about the difference between compliant vs. equivalent, you can read our article on What Constitutes NFPA 22 Compliance & Equivalency for the International Fire Protection Magazine here.
Build a Complete Fire Protection Tank System
Pair your tank with the right accessories to satisfy NFPA 22, AHJs, and your local Fire Marshal.
Required Components
- Anti-vortex plates
- Water level indicators
- Fire department connections (FDCs)
- Access ladders, platforms, and safety rails
- Listed OS&Y valves
These components are commonly required to meet your local standards, however, some counties may or may not include certain items. Every tank is unique, that’s why we’re here.
Recommended Enhancements
- Water heating systems
- Insulation
- Lockable security covers for ladders
- Lightning protection systems
- Multiple roof styles (30°, 10°, flat, and more!)
These components, while not required in every tank, can improve safety, performance, and aesthetics, all while helping your tank work better for you and your site.
Anatomy of a Tank

Compliance Made Easy
Navigating fire Protection Standards can be complex, but we make it simple. Our team of experts and network of authorized dealers are ready to guide you through:

System Design
Tailoring fire protection tanks to meet your exact project requirements.

Code Compliance
Ensuring alignment with NFPA, IFC, IBC, ASCE, AWWA, FM Global, and Local AHJ/Fire Marshal Regulations.

Approval Process
Providing detailed documentation and structural calculations from a licensed engineer for seamless permitting.
With CorGal® tanks, you'll have the confidence to move your project forward without delay.
Applications of Fire Protection Tanks

Wildfire Protection
Ensure you’re prepared in wildfire-prone regions with large-capacity fire tanks that meet NFPA 1142 requirements for rural firefighting. Our CorGal fire protection tanks provide immediate access to water with adequate pressure, helping firefighters swiftly and effectively prevent wildfires from spreading.
Commercial and Industrial Facilities
From coffee shops to manufacturing plants, our fire protection tanks deliver the capacity and reliability needed for high-demand fire suppression systems. They are customized to follow any standard or code required by your fire marshal and AHJ, including NFPA 22, NFPA 1142, NFPA 1, IFC, and IBC. Their durability and compliance ensure long-term protection for businesses of all sizes.


Residential Developments
Safeguard homes and communities with scalable solutions that meet stringent fire safety codes while supporting potable water storage, stormwater management, rainwater harvesting, and irrigation with dual-use fire tanks. These fire tanks provide peace of mind by ensuring a reliable water source for emergency response and everyday household needs.
Custom Signage
Show off your flair using your fire protection tank as signage for your business, city, or organization. Add any creative design you like! With custom branding logos or artistic elements, your fire tank can double as a functional landmark that leaves a lasting memory.

Watch a Fire Marshal-Supervised Water Flow Test
Water Storage Tank Appurtenances
Why Partner with Water Storage Tanks, Inc.?

End-to-End Support
From project design and compliance to delivery and installation, we are your one-stop solution for fire protection tanks. Have any questions or concerns about fire protection or water storage? Our team of experts is here to help.

Proven Expertise
With 20+ years of experience as the first to introduce corrugated bolted steel tanks for fire protection in the U.S. and Canada, we are a pioneer in the fire protection water storage industry. We meet the highest safety, compliance, and sustainability standards. Our president also serves on the NFPA 22 and AWWA 306 committees, meaning you can rest easy with your tank in our hands.

Nationwide Network
Our extensive network of CorGal®-Authorized dealers across the U.S. and Canada provides local expertise, quick response times, and reliable support, ensuring you get the best fire protection water storage solutions.


