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Portable Water Tanks

Portable Water Tanks for Hauling, Storage, and Utility Use
When water needs to move, you need a tank that’s built to keep up. At Tank Depot, our portable water tanks are engineered for safe, reliable hauling—no matter the destination. Whether you're transporting water to a job site, powering a pressure washer, or supplying fresh water to a remote cabin or RV, we offer a wide range of tank sizes and styles to match your exact needs....

Constructed from high-density polyethylene and designed for durability, our water hauling tanks are UV-stabilized, FDA-approved, and made to withstand the demands of mobile use. Available from 15 to 500 gallons, these transportation tanks are a trusted solution for contractors, homeowners, off-grid professionals, and agricultural operations across the U.S. If you need a flat bottom utility tank, a leg tank for trailers, or a pressurized setup with pump and hose options, Tank Depot has you covered—with industry-leading stock and fast shipping.

Applications of Tank Depot’s Flat Bottom Transportable Tanks

Our portable water tanks are engineered for a wide range of on-the-go water storage and hauling needs. Here’s how our customers put them to work:

Contractors and Landscapers
Contractors and Landscapers

Transport and dispense water efficiently on job sites for irrigation, soil compaction, or concrete mixing.

Pressure Washing Professionals
Pressure Washing Professionals

Use as a dependable mobile water supply for high-pressure cleaning equipment in commercial or residential settings.

RV and Van Life Travelers
RV and Van Life Travelers

Store potable or gray water with confidence during road trips and off-grid stays with tanks built for mobility.

Farmers and Ranchers
Farmers and Ranchers

Deliver water to livestock or irrigate remote plots using tanks designed for hauling and field use.

Disaster Relief
Disaster Relief

Deploy hauling tanks quickly in crisis zones for clean water distribution, firefighting, or sanitation support.

Construction Crews
Construction Crews

Supply water for handwashing stations, food service, or dust control at remote or temporary locations.

Off-Grid and Tiny Home Owners
Off-Grid and Tiny Home Owners

Store and transport water reliably to properties without municipal access, using tanks made for repeated transport.

Municipal and Industrial Operators
Municipal and Industrial Operators

Support utility maintenance or roadwork with tanks suited for trailer mounts, trucks, or carts.

Choosing the Best Portable Water Tank for Your Needs

Not sure which tank fits your application? Use the guide below to narrow your selection based on how and where you plan to use your tank.

Consider Your Capacity Needs
  • Small Tanks (15–100 gallons): Ideal for light-duty use, such as gardening, pressure washing, or UTV/ATV mounting.
  • Mid-Range Tanks (150–300 gallons): Great for hauling water to livestock, off-grid cabins, or RV use.
  • Large Tanks (400+ gallons): Built for commercial hauling, job sites, and high-volume storage.

Will You Need a Pump, Hose, or Tank Add-Ons?

  • Choose mobile tanks compatible with pump systems if you need pressurized flow for pressure washers or irrigation.
  • Add-on hose kits are available for models with threaded outlets.
  • Some tanks can be fitted with wheel kits for increased mobility on job sites or around large properties.

Understand Fittings and Material Grades

  • Look for FDA-approved polyethylene if you plan to store potable water.
  • For non-drinking applications (e.g., gray water, irrigation), standard UV-resistant poly tanks are sufficient.
  • Check outlet compatibility with existing equipment—common outlet sizes are ¾" and 2", while most tanks feature 8" fill caps.

Match the Tank to Your Transport Setup

  • Flat bottom utility tanks are stable and versatile for carts, trucks, and sheds.
  • Horizontal leg tanks mount securely on ATVs or trailers.
  • Elliptical and cylindrical tanks are built to distribute weight evenly for safer hauling at scale.

Find the Perfect Portable Water Tank for Sale at Tank Depot

At Tank Depot, we stock one of the largest selections of portable water tanks in the U.S., with options trusted by contractors, homeowners, and industry professionals nationwide. Whether you're outfitting a trailer, supporting field operations, or managing water off-grid, our poly flat-bottom utility tanks are engineered for dependable transport and long-term performance.

Have questions or need a custom solution? Our team of tank specialists is here to help you choose the right model and accessories for your project. Shop now or contact us to find the right tank, the right fit, and the right support—only at Tank Depot.

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