The Enduraplas TLV03100 is a 3,100-gallon vertical polyethylene water storage tank built for bulk irrigation, fire-water reserve, and site water-storage duty where you need a large, stable column of water on a single footprint. It stands 103 inches tall on a 100-inch diameter base, so the tank occupies just over an 8.3-foot-wide round pad while reaching nearly nine feet of height. Filled to capacity with water it carries about 25,854 pounds, and that number drives every decision downstream of the purchase - pad, freight, and fittings all follow from it.
Will it work for your site
This is a vertical storage tank, so it fills and draws from the bottom and holds head pressure for gravity feed or a booster pump. The technical drawing on this page shows a 3-inch bolted fitting for your main outlet or bulkhead connection, a 2-inch threaded fitting for a secondary line or return, and a 16-inch lid up top for filling, venting, and inspection access. Order the 3-inch bolted bulkhead with its gasketed flange kit and seat the 2-inch threaded port on a standard NPT bulkhead or camlock - a missing gasket is the fastest way to make an outlet weep, so confirm the seal hardware against the drawing before you plumb. The tank is rated for water at 1.0 specific gravity; confirm your fluid's specific gravity before any non-water service, and confirm tank color and opacity at order since that affects UV and algae behavior on an outdoor install.
Sizing and the pad underneath
Because the full-water weight lands near 25,854 pounds on a 100-inch (8.3 ft) diameter footprint, the pad underneath matters as much as the tank: a 3,100-gallon column needs a level, engineered, load-rated base sized larger than the tank's own diameter. Our concrete pad sizing guide walks the ACI 360R-10 framework for above-ground poly tanks, and once the tank is set, run a proper acceptance fill using our hydrostatic test methodology to catch fitting leaks and pad settlement before the tank goes into service. If you are still deciding between capacities, the Tank Sizing Calculator and Tank Sizing Guide help you match draw rate and refill window to capacity so you are not oversizing the pad or the freight. For fire-protection reserves, the NFPA 22 sizing discipline guide covers reserve math and cold-climate freeze protection, and if this tank is aggregating grey-water, rainwater, or HVAC condensate, the water reuse tank topology guide maps where a vertical bulk storage tank fits in the treatment sequence.
The mistake to avoid
The most common error on a tank this size is treating it as a set-it-anywhere vessel. Nearly 26,000 pounds of water on a 100-inch diameter concentrates real load - an unlevel or under-built pad will stress the shell and the bottom fittings, and a tank that settles unevenly can weep at the 3-inch outlet even with a good gasket. Set it on a full, level, load-rated pad, support the plumbing independently so the tank is not carrying pipe weight, and verify the fitting layout on the drawing matches your manifold before delivery day.
This tank ships LTL freight on a dedicated truck because of its size and weight, and freight is quoted separately to your ZIP. Use the Freight Cost Estimator for a delivery estimate, or call us at 866-418-1777 and we will help you size the tank, confirm the fittings, and schedule delivery.
