The Norwesco 250 Gallon Open Top Containment Tank is a black polyethylene catch basin built to sit under a smaller tank, drum, or transfer station and hold whatever it releases. It carries a 250-gallon rated capacity in a low, wide open top form: 11 inches tall on a 68-inch by 92-inch footprint, so the whole assembly stays close to the ground and easy to inspect. There are no factory-installed fittings on this part; it is a sealed catch basin, so you set your primary vessel or equipment directly inside and keep the containment visible at all times.
At a glance: 250 gal · 11" H × 68" W × 92" L · black polyethylene · 1.5 specific-gravity rating · full-water weight 2,085 lb · max rated contents 3,128 lb.
Will this open top tank work for my setup?
Start with the footprint. At 68 by 92 inches, this containment tank needs a level pad or slab that fully supports all four corners; the shallow 11-inch wall is a catch basin, not a structural cradle, so the load has to rest on the ground beneath it. Filled with water, the basin holds roughly 2,085 pounds of contents. The 1.5 specific-gravity rating means it is designed for liquids up to 1.5 times the density of water, about 12.5 pounds per gallon, which lifts the usable weight ceiling to roughly 3,128 pounds of rated contents so denser fluids than water stay within its design band. If you are matching this basin to a primary tank, run the numbers with the Tank Sizing Calculator or walk through the Tank Sizing Guide to confirm the containment volume covers the required percentage of your primary vessel before you commit to a size. For fire-water reservoir and grey-water or rainwater reuse installs, our guides on fire-water reservoir design and industrial water-reuse tank topology walk through where a basin like this fits the wider storage train.
How it ships
This is a wide, open-top part, so it moves by LTL freight. It ships from the nearest Norwesco plant to you: Fairfield, TX or Shawnee, OK. Freight is quoted live to your ZIP rather than folded into the list price, and shipping from the closer of those two direct plants keeps the OK/TX lane short. Use the Freight Cost Estimator for a quote to your address, or call 866-418-1777 and we will work it out with you.
The mistake to avoid
The biggest error with an open containment basin is treating it as a storage tank. It has no lid, so anything held in it is exposed to rain, debris, and evaporation. On an outdoor install, factor rainfall into your available containment volume, because a basin already holding stormwater has less room for an actual release. Set it on a proper pad first. If the basin ties into a larger bulk-storage or loadout arrangement, the civil details matter more than the tank itself: our guides on concrete pad sizing for above-ground polyethylene tanks and loadout pad engineering and spill-containment geometry cover the slope, curb, and sump decisions that keep a transfer from becoming a reportable release.
Ready to move? Get a live LTL freight quote to your ZIP with the Freight Cost Estimator, or call 866-418-1777 to confirm the closest shipping plant and lock in delivery.
