The Enduraplas 1550-gallon dark green vertical water storage tank is a polyethylene above-ground tank built for bulk water storage, rated to 1,550 gallons in an 80-inch-tall body on an 85-inch round footprint. The dark green color holds back light to discourage algae growth on outdoor irrigation and reserve-water installs. This page covers what this vertical storage tank holds, how it ships, and the one planning detail that trips up most first-time buyers of a tank this size.
What this Enduraplas vertical tank holds and how it sizes
The tank carries a specific gravity rating of 1.1, so it is built for water and water-density contents up to that limit. Filled with water, the contents alone weigh roughly 12,927 pounds, and the tank is rated to carry contents up to 14,220 pounds total - that ceiling is the SG-1.1 limit in practice (12,927 lb of water times 1.1 density lands right at 14,220 lb), which marks this clearly as a water tank rather than a high-density chemical unit. Those are not abstract numbers - they are the loads your pad, soil, and site access have to support before the tank is full. The body stands 80 inches tall and sits on a roughly 85-inch (7-foot) diameter circle, so confirm both the overhead clearance for filling and the ground area for the full diameter before you commit. If you are deciding between this 1,550-gallon size and a neighboring capacity, run the numbers through our Tank Sizing Calculator and read the Tank Sizing Guide first.
Pad, foundation, and install discipline
A water-full load near 13,000 pounds bearing on an 85-inch-diameter circle puts real pressure on whatever sits under it. A vertical water storage tank wants a level, fully supported base across the entire bottom - not a partial pad or uneven gravel - so the load spreads evenly and the tank does not flex. For pad sizing on an above-ground polyethylene tank, work through our guide on concrete pad sizing using the ACI 360R-10 framework. After the tank is set and plumbed, validate the install with a water fill before putting it into service - our hydrostatic test methodology guide walks through fill discipline, pad-settlement monitoring, and fitting leak checks. For the fitting and outlet configuration on this tank, contact us before you plumb so the inlet, outlet, and overflow land where your site needs them.
The mistake to avoid: planning the pad for empty, not full
The most common error on a vertical storage tank this size is sizing the pad and access for the tank as it arrives - light and empty - instead of for the 14,220-pound rated load it will carry once filled. Get the foundation and the ground bearing right for the full weight up front, because correcting a settled or cracked pad after the tank is full and plumbed is a far bigger job. This tank suits rural reserve water, irrigation supply, fire-water reservoirs, and industrial water reuse trains; if it is going into a private fire-protection stack or a reuse system, the fire-water reservoir design guide and the industrial water reuse topology guide cover the design choices that matter.
This Enduraplas water storage tank ships LTL freight from the Enduraplas plant in Converse, Texas, with the cost quoted live to your ZIP code. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to talk through delivery, off-loading, and tank selection with our team.
