The Enduraplas 10000 Gallon Plastic Vertical Liquid Storage Tank in Black is a polyethylene vertical storage tank built for high-volume water and liquid holding where a single large footprint beats a bank of smaller tanks. It holds 10,000 gallons, stands 178 inches tall on a 144 x 144 inch footprint, and carries a 1.9 specific gravity rating. The black resin resists UV and suppresses algae growth, which makes this a practical choice for outdoor bulk water, fire reserve, and rural site storage. If you are sizing for a large vertical tank, this is one of the heaviest-duty 10,000-gallon options in the class.
Will this tank work for your application?
Start with the weights, because at this size they drive everything else. Filled with water, the tank and contents weigh about 83,400 lb. The 1.9 specific gravity rating means the wall is engineered to carry contents up to roughly 158,460 lb, so plain water uses only about 53 percent of the structural rating. That is the real, measurable headroom this tank gives you for liquids denser than water. Most 10,000-gallon poly verticals are rated to 1.5 specific gravity; the 1.9 rating here is the heavier-duty option when your fluid weighs more than water, always gated on the manufacturer's chemical-resistance data for that specific liquid. The 144 x 144 inch footprint and 178-inch height are the numbers your site plan lives or dies on: check overhead clearance, doorway and gate access, and the pad before you order. A tank this heavy must sit on a properly engineered, level base; see our concrete pad sizing guide for the ACI framework that applies to above-ground poly tanks. If you are still settling on capacity, the Tank Sizing Calculator and Tank Sizing Guide walk through matching tank volume to demand, and the dedicated 10000 gallon vertical buyer's guide covers this size class in depth.
Venting, fittings, and fire-water sizing
A 10,000-gallon vertical needs deliberate vent sizing, since an undersized vent can deform the tank during fast fill or draw. Our atmospheric vent capacity guide works through the API 2000 math for thermal inbreathing, liquid-movement outbreathing, and combined sizing specifically on verticals up to 10,000 gallons. For exact fitting and outlet locations, see the technical drawing on this page, and confirm fitting size, count, and gasket material before ordering, since those are not listed in the catalog spec. If this tank is going into a private fire-protection reserve, the fire-water reservoir design guide covers NFPA 22 sizing discipline and freeze protection. Note that black resin absorbs solar heat, which affects both warm-climate water temperature and cold-climate freeze behavior, so review that guide's freeze-protection section if the tank will sit through hard winters.
The mistake to avoid
The most common error on a tank this large is treating the specific gravity rating as a green light for any heavy liquid. The 1.9 rating describes what the wall can structurally support, not chemical compatibility; resin and gasket behavior depend on the actual chemical, its concentration, and temperature. Confirm your liquid against the OEM chemical-resistance chart before service. Because no fittings or seals are listed in the catalog spec for this tank, gasket and seal material must be specified to match the fluid at order time, not assumed. The second mistake is underbuilding the pad: 83,400 lb of water on an unlevel or undersized base will stress the tank wall and risk damage. Check the manufacturer's installation requirements for your base specifications.
This Enduraplas vertical storage tank ships LTL freight, quoted live to your ZIP, from the nearest of its two plants, Converse, TX or Neche, ND. Get a real number for your delivery with our Freight Cost Estimator, or call us at 866-418-1777 and we will route from whichever plant lands the better rate for your location.
