The Norwesco 1000 Gallon Multi-Use Underground Liquid Storage Tank is a two-compartment polyethylene tank built for the Canadian market, designed for below-grade storage where above-ground space isn't available. It holds 1,000 gallons in a blue polyethylene shell measuring 63" tall, 60" wide, and 102" long, giving you a 60.0 x 102.0 inch footprint to plan your excavation around. The two-compartment layout lets you keep two separate liquids in a single buried vessel — a real advantage when you're committing to one excavation. This is the underground storage tank Norwesco builds for Canada, so before you order, confirm with us at 866-418-1777 that this SKU ships to your delivery address, since the listed production plants are in the United States.
Will it work for your site?
Start with the load math. Filled to capacity with water, this tank carries roughly 8,340 lb, so your bedding, backfill, and any traffic loading above the buried tank all need to account for that mass plus the tank's own structure. Underground installation is unforgiving of guesswork: the excavation, the bedding material, and the backfill compaction matter more than they do for an above-ground tank. Use the dimensions on this page (63" H x 60" W x 102" L) to size the hole and confirm clearances before you dig, and check the technical drawing on this page for the full dimensional layout and how the two compartments are split — the per-compartment volume is the most decision-relevant number for a two-compartment buyer, so confirm it there before you order. For help matching capacity to your draw and refill cycle, the Tank Sizing Calculator and Tank Sizing Guide walk through the sizing logic.
Fittings and plumbing for buried service
Plan your connections before backfill, because retrofitting after the tank is in the ground is a far larger job. Fitting locations, sizes, and gasket materials are not specified in our catalog data for this tank, so confirm them against the technical drawing on this page or by calling 866-418-1777 before you excavate. For buried storage, gasketed bulkhead fittings are the usual failure point, so it's worth getting the plumbing approach right the first time rather than assuming a generic underground spec.
The mistake to avoid
This is a multi-use polyethylene storage tank, not a septic or potable-certified vessel by default, so match the tank to your actual liquid and your local code before committing. Confirm the two-compartment configuration suits how you intend to split your liquids, and verify burial-depth and bedding requirements against the technical drawing. One real underground concern the spec sheet won't shout at you: an empty buried tank can float in a high-water-table excavation, so verify anti-flotation provisions against the drawing before you backfill. If you're sizing a buried polyethylene tank for fire-water reserve, our fire-water reservoir design guide covers the NFPA 22 sizing discipline that applies.
Freight and how to order
This 1000 gallon underground storage tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant — Lancaster, OH; Owego, NY; St. Bonifacius, MN; or Washougal, WA. Get a real number with the Freight Cost Estimator, or call 866-418-1777 and we'll confirm the closest serving plant, the Canada-market availability, and the spec for your install. Listed before freight; LTL is quoted separately to your delivery ZIP.
