The Norwesco 35 Gallon Portable Flat Bottom Utility Tank is a tall, narrow polyethylene tank that stores 35 gallons in a compact 15 by 15 inch footprint, standing 43 inches high. It is the kind of slim, flat-bottom utility tank that fits where a wide tank cannot, against a wall, in a truck bed corner, or in a tight equipment bay. The molded-in 1.5 specific gravity rating lets this Norwesco white utility tank hold liquids denser than water, up to a 438 pound contents load, without overstressing the wall, which is what makes it a workable choice for farm fleet and portable water setups.
Will this 35 gallon tank work for your setup?
Full of water this tank weighs about 292 pounds, and it is rated to carry contents up to 438 pounds, the headroom that comes from its 1.5 specific gravity rating. That envelope means it can hold liquid fertilizer, light brine, or other denser-than-water solutions up to 438 pounds, not just plain water. Plan your stand, shelf, or skid for the loaded weight, not the empty shell, and keep the 15 by 15 inch footprint and 43 inch height in mind when you fit it under a roofline or inside a cabinet. One thing to watch on this particular tank: 43 inches of height on a 15 by 15 inch base puts the center of gravity high when it is full, so set it on a level, full-footprint surface and strap or band it to the stand or wall so a loaded tank cannot tip. If a poured pad is part of your plan, our guide on concrete pad sizing for above-ground polyethylene tanks covers the foundation math for the loaded weight. If you are weighing this against other sizes, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide before you commit.
Fittings and fill
This tank is molded with threads for a 5 inch cap at the top, giving you a wide opening for filling, cleaning, and venting. Those 5 inch cap threads are the only fitting documented for this model, so treat any outlet, bulkhead fitting, or gasketed connection as a customer-added item, sized to the 5 inch cap thread or installed in the flat sidewall. See the technical drawing on this page for the cap thread detail and overall dimensions, and call us at 866-418-1777 to confirm a fitting or gasket kit before you order plumbing.
Freight and ordering
This Norwesco tank ships LTL freight, quoted live to your ZIP code. It is stocked from Norwesco plants in Iowa and Mississippi, and the estimator routes from the nearest one, Sheldon, Iowa or the Mississippi location, so a southern buyer can often pull a shorter, cheaper lane. Because LTL pricing depends on distance and destination, get an exact number for your address with our Freight Cost Estimator, or call us at 866-418-1777 and we will quote it for you. If you run a portable utility tank on a farm fleet, it is worth reading our guide on Norwesco loaf-style portable utility tanks and the 49 CFR 1735 agricultural exemption to understand how DOT classifies farm fleet use. Questions on sizing, fittings, or fit? Reach us at 866-418-1777 before you buy.
