The Norwesco 6500 Gallon Vertical Liquid Storage Tank is a polyethylene vertical storage tank built for large-volume water and liquid storage where you need real capacity in a single above-ground vessel. It stands 150 inches tall on a 119-inch diameter footprint, holds 6,500 gallons, and carries a 1.9 specific gravity rating - meaning the wall is rated to hold contents up to 1.9 times the weight of water. For water service, that is the buyer-protective fact: at water's 1.0 specific gravity you are using only about 53% of the rated wall capacity, leaving real headroom for long-term wall margin or heavier liquids down the road.
Will it work for your site?
Filled with water, this Norwesco vertical tank carries roughly 54,210 pounds of contents, and its wall is rated to a maximum content weight of 102,999 pounds at the full 1.9 specific gravity. Those numbers drive two decisions: the structural pad and the volume you actually need. Design the slab for the rated maximum of 102,999 pounds, not the 54,210-pound water-full weight, so the foundation is not undersized if the tank is ever filled heavier. The 119-inch diameter is the controlling dimension - the tank needs a level, fully supported base bearing across that entire circle, not just a ring. Before you commit, run your target volume and footprint through the Tank Sizing Calculator and the Tank Sizing Guide so the 6,500-gallon capacity matches your drawdown and refill cycle. For a load this heavy, our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for sizing a slab that carries the full 102,999-pound rated load.
Fittings and the technical drawing
For exact fitting locations, sizes, and the manway configuration, see the technical drawing on this page - it shows the as-built outlet and lid layout for this specific 119 x 150 model. Order your fill, draw, and overflow fittings and gaskets to match the drawing's bolt circle and thread spec - do not assume NPT, and confirm the schedule against your plumbing plan before you order, because outlet placement determines how the tank ties into your lines. For a deeper walkthrough of this exact size, the 6500 gallon vertical liquid storage tank buyer's guide covers the full configuration.
Common application: fire-water reservoir
A 6,500-gallon vertical tank is a frequent choice for rural and remote fire-water reservoir duty, where stored volume is the whole point. If that is your use case, our guide on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing discipline and freeze-protection engineering for cold-climate service - both of which matter when a polyethylene tank is part of your private fire-protection stack.
This Norwesco vertical storage tank ships LTL freight from the nearest Norwesco plant - Hanford, CA or St. Bonifacius, MN - with the carrier quoted live to your ZIP code. Freight is quoted from whichever plant is closer to you, and on a 119-inch diameter, 150-inch tall oversized load the closer shipping point can swing the LTL number materially, so nail it down early: run your delivery ZIP through the Freight Cost Estimator for a shipping quote, or call our team at 866-418-1777 to confirm the closest shipping point and coordinate offload for a tank this size.
