The Enduraplas 6250 Gallon Plastic Vertical Water Storage Tank (SKU TLV06250) is a bulk vertical tank for large-volume water storage — rural fire reserve, industrial process water, irrigation, or reuse-train buffering. It stands 147 inches tall on a 120-by-120-inch footprint, a stable square pad target for a tank of this capacity. Dimensions on this listing are verified against the launch spec sheet.
Will this tank work for your site?
At full water, this tank carries 52,125 lb across a 120.0 x 120.0-inch footprint, so pad design is the first engineering decision, not an afterthought. Load scales with fill: a half-full tank still puts roughly 26,000 lb on the base, which matters for staged fills and acceptance testing. Plan the foundation before delivery — our Concrete Pad Sizing for Above-Ground Polyethylene Tanks guide walks the ACI 360R-10 framework and where the ACI 318 boundary sits for a load this size. If you are still confirming volume against demand, run the numbers with our Tank Sizing Calculator and the Tank Sizing Guide.
Fittings and how to connect
The technical drawing on this page shows three connections: a 16 inch lid for top access, a 3 inch bolted fitting, and a 2 inch threaded fitting. Those are two different hardware paths — the 3 inch bolted fitting mates to a bolted-flange bulkhead with a gasket, while the 2 inch threaded fitting takes a thread-in bulkhead or adapter — so order the matching gasket and adapter kits before install day. Note that no factory bottom outlet is shown on the drawing: the 3 inch bolted and 2 inch threaded fittings are the available process connections, so a fire-draft, gravity-feed, or fill-and-draw plan has to be designed around those two ports rather than assuming a bottom drain.
Fitting for fire and reuse duty
For rural and remote fire-water reserve, size the reservoir with NFPA 22 discipline and plan freeze protection up front — our fire-water reservoir tank design guide covers the polyethylene tank's role in the private fire-protection stack. If this tank is buffering a grey-water, rainwater, or HVAC condensate stream, the industrial water reuse tank topology guide shows where quality-banded storage fits in a treatment train. Once the tank is set, prove the install with a proper acceptance test — the hydrostatic test methodology guide details water-fill discipline, pad-settlement monitoring, and hold-time math.
The mistake to avoid
Do not pour a pad or set gravel until you have the verified footprint and full-water weight in hand. A 52,125 lb load concentrated on a 120-inch square is unforgiving of a marginal foundation — settlement or an out-of-level base is the most common and most expensive error on a tank this size. One more check before you buy: this is listed for water service, and a specific-gravity rating is not published on this listing, so confirm the SG rating with us at 866-418-1777 before storing anything heavier than water. Set the pad plan first, then schedule delivery.
This tank ships LTL freight, quoted live to your ZIP — get a rate with our Freight Cost Estimator or call 866-418-1777. Listed before freight; LTL is quoted separately to your delivery point.
