The Norwesco 1350 Gallon Dark Green Vertical Water Storage Tank is a full-size above-ground vertical built for bulk water storage, rainwater capture, and rural fire-water reserve. Listed at 1,350 gallons, it stands 88 inches tall on a 71-inch diameter footprint, molded from polyethylene in a dark green color that cuts light penetration to slow algae growth on outdoor installs. It ships LTL from the Norwesco plant in Washougal, WA, so a West-Coast site gets the shortest freight lane on this size. This is the tank to spec when you need real reserve volume on a single, manageable footprint.
Listing specs at a glance
- Capacity: 1,350 gallons
- Height: 88 in
- Diameter: 71 in (71 x 71 in footprint)
- Full water weight: 11,259 lb (also the maximum rated contents weight)
- Specific gravity rating: 1.0
- Material: polyethylene / Color: Dark Green
- Ships from: Washougal, WA
Will this work for your site
Plan around the numbers, not estimates. The tank measures 88 in high and 71 x 71 in across, so the pad and any enclosure have to clear that 71-inch diameter. Filled to capacity, contents weigh 11,259 lb, which is also the maximum rated contents weight for this tank at its 1.0 specific gravity rating. That 1.0 SG rating means the tank is built for water and water-weight liquids at room-temperature density; it is a water storage tank, not a chemical tank, so keep the stored fluid at or below water density. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm 1,350 gallons matches your draw-down and refill cycle before you commit to a pad size.
Fittings and foundation discipline
No inlet, outlet, or fitting sizes are published in this listing spec, so plumb strictly from the technical drawing on this page and confirm thread sizes and gasket selection there before you order bulkhead fittings or camlocks. An above-ground vertical tank also lives or dies on its pad: at nearly 5.6 tons full, this tank needs a level, properly sized foundation that supports the entire base evenly. Our guide on concrete pad sizing for above-ground polyethylene tanks walks the ACI 360R-10 framework so you size the slab correctly, and once it is set and plumbed, run a controlled water-fill acceptance test before service.
Reserve and reuse applications
At 1,350 gallons this vertical storage tank lands well as a private fire-water reserve or a reuse aggregation tank. Related engineering guides cover the next steps: fire-water reservoir design (NFPA 22 sizing and freeze protection for cold-climate service), industrial water reuse topology for grey-water, rainwater, and HVAC condensate aggregation, and hydrostatic test methodology for new-install acceptance.
One mistake to avoid
The common error on a vertical tank this size is treating it as a general liquids tank. Its 1.0 specific gravity rating is set for water; storing anything heavier than water can push contents past the 11,259 lb rated weight and overstress the wall and base. Keep it on water-density service, and confirm your fitting and outlet layout against the technical drawing on this page before you plumb the site.
This tank ships LTL from Washougal, WA, with freight quoted live to your ZIP - get your number with the Freight Cost Estimator or call 866-418-1777. Reference the technical drawing on this page for exact fitting and outlet locations.
