The Norwesco 325-gallon pickup truck water storage tank is a low-profile polyethylene water tank built to ride in a truck bed and haul water where you need it. At 62 inches square and only 33 inches tall, its wide 62.0 x 62.0-inch footprint keeps the center of gravity low so water stays settled while you drive. It holds 325 gallons of fresh water, weighs roughly 2,710 pounds full, and is molded in white polyethylene rated to a 1.5 specific gravity.
Will this Norwesco water tank work for your haul?
This is a specialty water storage tank sized for pickup-bed transport and remote fill jobs. Run the payload numbers before you load it: 325 gallons of water weighs about 2,710 pounds, and the tank carries a maximum rated contents weight of 4,066 pounds. The single most important purchase-stopping fact is the loaded weight. At roughly 2,710 pounds of water alone - before the tank's own weight - a full load exceeds the payload rating of essentially every half-ton pickup and most three-quarter-ton trucks. Confirm you're running a one-ton or dually, or plan on a partial fill, before you put this on the bed. Compare that full-water figure against your truck's payload rating and the bed's tie-down capacity before your first trip. The Tank Sizing Calculator and Tank Sizing Guide walk you through capacity, footprint, and loaded weight so you don't oversize the load.
What else can it haul: the 1.5 specific gravity headroom
This tank is a water tank, but it's molded with margin: the 1.5 specific gravity rating means the polyethylene wall is built to carry liquids up to one-and-a-half times the weight of plain water without exceeding its design margin. For transport, that headroom matters less than your truck - the limiting factor is almost always the bed's payload, not the tank wall. So when you size a denser liquid by weight, the 4,066-pound maximum rated contents figure and your truck's payload are the two numbers that govern the load, not the gallon capacity.
The mistake to avoid: treating it like a stationary tank
This Norwesco tank is a transport-style water storage tank, not a fixed vertical reservoir. When water is moving in a partially filled tank, that 2,710-pound load shifts - so fill it full or strap it down and drive accordingly, and always secure the tank to the bed rather than relying on its weight alone. A transport tank vibrates and the loaded weight stresses every plumbed connection, so check and snug the outlet bung and any bulkhead-fitting gaskets before each haul. If you're standing this tank on a pad instead of a truck bed, confirm the surface is flat, level, and fully supports the 62-inch square base; an unsupported edge under thousands of pounds of water is how plastic tanks fail. Our guide on concrete pad sizing for above-ground polyethylene tanks covers the support math if this becomes a stationary water storage tank.
Putting the water to work
Buyers use a tank this size for rural water hauling, jobsite supply, livestock and irrigation fill, dust control, and as a portable reservoir feeding a private fire-protection setup. If fire-water storage is your end use, our writeup on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing and cold-climate freeze protection. See the technical drawing on this page for overall dimensions before you plumb it.
This 325-gallon Norwesco tank ships LTL freight, palletized and quoted live to your ZIP from the nearest Norwesco plant - the tanks are molded at Norwesco plants nationwide, and the estimator resolves the closest origin to you. Get an exact freight quote to your ZIP with the Freight Cost Estimator, or call 866-418-1777 and we'll quote it and help confirm this is the right water storage tank for your truck and your haul.
