The Enduraplas 1100 Gallon Black Vertical Storage Tank is a polyethylene vertical tank standing 97 inches tall on a roughly 60-inch footprint, holding 1,100 gallons. The black exterior blocks light to discourage algae growth, which makes it a practical choice for outdoor water storage, rural fire-water reservoirs, rainwater capture, and industrial water reuse service.
The specs that matter
- Capacity: 1,100 gallons
- Standing height: 97 in
- Footprint: 60 x 60 in (round tank; see the technical drawing for exact diameter)
- Material: polyethylene
- Full-water weight: 9,174 lb
- Specific gravity rating: 1.9 (max rated contents 17,431 lb)
That 1.9 specific gravity rating is real headroom: the same tank is rated to hold heavier-than-water liquids up to 1.9 SG, or up to 17,431 pounds of contents, so it covers many heavier-liquid duties and not just the 9,174-pound water case. For straight water storage, 9,174 pounds is your governing load. Fitting sizes, inlet and outlet locations, and gasket details are shown on the technical drawing on this page, so verify those before you order plumbing.
Will it work for your site
At capacity the water inside weighs roughly 9,174 pounds, so the pad and foundation carry close to five tons before you account for the tank itself. Confirm your slab or stand is rated for the full load, and review our concrete pad sizing guide built around the ACI 360R-10 framework before you pour. If you are still settling on capacity, the Tank Sizing Calculator and Tank Sizing Guide help you match volume to demand.
Common uses and sizing
A vertical storage tank this size is a common backbone for private fire protection at rural and remote sites, where stored volume and freeze protection matter as much as the tank. Our fire-water reservoir design guide walks through NFPA 22 sizing discipline and the polyethylene tank's role in the protection stack. For reclaimed water programs, the industrial water reuse topology guide covers grey-water, rainwater, and HVAC condensate aggregation, and the rainwater harvesting guide covers first-flush diverter sizing.
The mistake to avoid
The most common error on a tank this heavy is underbuilding the foundation. Nearly 9,200 pounds of water sits on a 60-inch footprint, and a vertical tank that settles unevenly can crack a fitting or stress the wall. Pour a level, full-diameter pad rated for the loaded weight before delivery, and verify the 97-inch standing height clears any covered or indoor space you intend to use.
This tank ships LTL freight, quoted live to your ZIP from whichever Enduraplas plant is nearest you, Converse, TX or Neche, ND, so a southern buyer and a northern-plains buyer each get a shorter lane. Get a freight quote in seconds with our Freight Cost Estimator, or call 866-418-1777 to talk through the load with a person. Listed price is before freight.
