The Enduraplas 6250 gallon black vertical water storage tank is built for serious bulk water duty on farms, rural fire-protection sites, and industrial water-reuse trains where you need a lot of stored gallons in a single footprint. It stands 147 inches tall on a 120-inch diameter, holding 6,250 gallons in a vertical profile that fits inside a 120 x 120 inch pad envelope. The black coloring blocks light to discourage algae growth, which matters when water sits for long stretches between draws. This is the kind of vertical storage tank that anchors a rural water-storage system rather than supplements it.
Will it work for your job?
This is an Enduraplas vertical water tank molded from polyethylene with a 1.1 specific gravity rating, meaning the tank wall is rated to carry contents up to 1.1 times the weight of water. For plain water at full capacity, plan around 52,125 pounds of water weight, and the wall is rated up to 57,338 pounds of contents at the 1.1 specific gravity ceiling. Those are real, load-bearing numbers: a tank this size puts serious pressure on whatever it sits on, so this is not a "set it on the dirt" install. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a size and location.
Pad and install discipline
At more than 52,000 pounds of water plus the tank itself, the foundation under a 6250 gallon vertical is the install. Spread 52,125 pounds across a 120-inch-diameter circle (roughly 78.5 square feet) and you are loading the pad at about 660 pounds per square foot before you add the tank's own weight, so this is a engineered-pad job, not a gravel pile. A flat, fully supporting pad is what keeps the tank round and the fittings leak-free over its service life. Walk through concrete pad sizing for above-ground polyethylene tanks under the ACI 360R-10 framework before you pour, and use hydrostatic test methodology for new-install acceptance to monitor pad settlement and catch any fitting leaks as you fill for the first time. Check the technical drawing on this page for the supplied fitting schedule before you plan your plumbing.
Where this size earns its keep
A 6250 gallon vertical water storage tank is a common backbone for rural and remote fire-water reservoirs and for industrial water-reuse storage. If fire protection is your use case, read fire-water reservoir tank design for rural and remote sites for NFPA 22 sizing discipline and cold-climate freeze protection. If you are aggregating grey water, rainwater, or HVAC condensate, industrial water reuse tank topology covers how a vertical tank this size fits into a quality-banded storage train.
The mistake to avoid
The number that trips people up on this tank is the specific gravity rating: 1.1. That is right for water and lightly loaded water service, but it is not a high-SG tank. Do not put a fluid heavier than 1.1 specific gravity into it expecting the wall to hold up; heavier contents need a tank rated for that weight, and we can quote one for you at 866-418-1777. For straight water storage, the 1.1 rating gives you a margin over water's 1.0, which is what you want for a long, dependable service life.
This Enduraplas 6250 gallon vertical ships LTL freight, quoted live to your ZIP, from the Converse, TX plant. Get your exact freight number with the Freight Cost Estimator or call us at 866-418-1777 and we will quote the haul to your delivery address.
