10500 Gallon Vertical Liquid Storage Tank: Complete Buyer's Guide
Ten thousand five hundred gallons — nearly seventeen feet tall and almost eleven feet across, holding sixty-six tons of solution when full. This is the largest tank in the line, terminal-scale bulk storage with a 3-inch siphon-and-reducer outlet built to draw a massive column down to its working volume.
Specifications at a Glance
Every figure below is pulled straight from the live product record for this exact tank — the same data on the product page, so what you read here and what you buy never disagree.
Standards & Materials
- ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks. Governs wall-thickness and hydrostatic design for vertical rotomolded poly tanks of this class.
- FDA 21 CFR 177.1520 — Olefin polymers. The food-contact regulation the FDA-grade resin in this tank is compounded to meet.
- Specific gravity rating 1.5 — the tank is engineered for liquids up to 1.5× the density of water (water is about 8.34 lb/gal). Confirm your fluid’s SG before storage.
Product Overview
The 10500 Gallon Vertical Liquid Storage Tank is the top of the range, and everything about it is governed by scale. At 130 inches in diameter and 202 inches tall it stands nearly seventeen feet high on a base almost eleven feet wide — a primary storage vessel for a fertilizer terminal, a large co-op, or an industrial site that receives and dispenses chemical in tanker quantities.
Rated to 1.5 specific gravity, the tank holds solutions up to 12.5 pounds per gallon. A full 10,500-gallon charge at that density is approximately 133,513 pounds — roughly sixty-six tons — on a 2,158-pound shell. Those are foundation-and-engineering numbers: the dead load, the hydrostatic pressure at the base of a seventeen-foot column, and the wind load on a vessel this tall all have to be designed for by professionals. Norwesco molds even this giant as one seamless piece of polyethylene, eliminating any weld seam across the largest wall in the catalog.
The outlet is sized and configured for a deep, high-volume tank. A 3-inch NPT outlet with a 2-inch reducer and a 3-inch by 12-inch siphon tube draws solution from the very bottom of the column, giving high-flow dispensing that can also be reduced to meet downstream piping — and the longer siphon ensures clean bottom draw on a tank this deep. A 16-inch lid serves filling and instrumentation, and the translucent white wall provides a level reference on a tank no one inspects from the top.
This is terminal-scale bulk chemical infrastructure within its 1.5 specific-gravity envelope — not a potable-water tank — backed by Norwesco's 3-year warranty against manufacturing defects.
Technical Drawing
Official Norwesco technical drawing — 10500 Gallon Vertical Liquid Storage Tank
Key Features and Specifications
- 10,500-gallon capacity — sized for agricultural chemical and fertilizer storage
- Constructed from virgin linear polyethylene (HDPE) with 1.5 specific gravity rating — handles liquids up to 12.5 lbs/gal
- 202" tall x 130" diameter — compact vertical footprint
- 2158 lbs empty, approximately 133,513 lbs when full at rated specific gravity
- 3" with 2" Reducer and 3" X 12" Siphon tube NPT outlet fitting — factory installed and leak-tested
- 16" lid opening for fill, venting, and interior access
- FDA approved for potable water and food-grade liquid contact
- 3 Year Warranty from Norwesco against manufacturing defects
- Translucent white walls allow visual level monitoring without opening the tank and reflect sunlight to keep contents cooler
- Rated for continuous service up to 120 F / 48 C
- Seamless one-piece rotational molding — no seams, no welds, no leak points
- Manufactured by Norwesco — a leading name in rotomolded polyethylene tanks
- Large tanks require professional installation. Ensure the pad is level within 1 inch across the full diameter and that all piping connections allow for thermal expansion
- Ships via dedicated freight carrier due to oversized dimensions — contact us for delivery timeline and site access requirements
Installation and Setup Guide
Installing a sixty-six-ton, seventeen-foot tank is a major civil and rigging undertaking. There is nothing about it to improvise.
Engineered Foundation and Anchoring
This tank requires a reinforced concrete foundation designed by a professional engineer for the full loaded weight of roughly 133,513 pounds, level across the 130-inch footprint. A vessel this tall presents a large wind sail and a high center of gravity, so anchoring against overturning — critical when the tank is empty as well as full — must be engineered into the foundation along with the dead and hydrostatic loads. The pad must be level within an inch across the full diameter before any fill; at this scale a slight slope shifts an enormous load to one side of the base.
Plumbing the 3-Inch Siphon Outlet
Plumb the 3-inch outlet through its 2-inch reducer to the dispensing or transfer system. The 3-inch by 12-inch siphon tube draws from the bottom of the deep column — arrange external piping to maintain prime and shed air on a tank this tall. Provide ample thermal-expansion allowance and isolate the tank from rigid pipe loads with flexible or expansion-jointed connections, since a seventeen-foot column moves its fittings significantly through fill, draw, and temperature cycles.
Access, Venting, and Containment
Engineer safe elevated access to the 16-inch lid near seventeen feet up. Size the vent for tanker-rate fill and high-volume draw, matched to the chemistry; a deep tank dispensed quickly through an undersized vent will draw vacuum on the heavily loaded lower wall. Provide secondary containment engineered for the full 10,500-gallon volume. This is professional, crane-assisted installation from start to finish.
Maintenance and Long-Term Care
The largest tank in the line carries the most formal maintenance program — foundation, anchoring, the deepest lower-wall load in the catalog, and the long siphon draw.
Scheduled Inspection
- Foundation and anchoring: Inspect the engineered pad for settling and cracking and verify all anchoring is sound and torqued. On a seventeen-foot, sixty-six-ton tank, a shifting base or loosened anchor is the gravest hazard the system presents.
- Lower-wall survey: The base of this column carries the highest hydrostatic load of any tank offered — survey the lower wall rigorously for bulging, crazing, or stress whitening, and treat any deformation as urgent.
- Siphon and outlet: Confirm the 3-inch by 12-inch siphon draws cleanly from the bottom and that the outlet, reducer, and valve are leak-free and chemically intact.
- Vent and elevated access: Verify the vent is clear and properly sized for high-rate dispensing, and that fall-protected access to the lid remains safe.
Decontamination Between Products
Fully decontaminate the tank, long siphon tube, outlet, and piping to the chemical manufacturer's procedure before any product change. Ten thousand gallons holds an enormous residual volume, and cross-contamination at terminal scale is a major financial and safety event. This is bulk infrastructure and is never converted to potable service.
Long-Term Care
Out of direct sun and within its ratings, the seamless shell delivers many years of service even at this size. The long-term watch items are the foundation under sustained sixty-six-ton load, the anchoring against wind, and the deepest lower-wall hydrostatic zone in the catalog. A rigorous, documented inspection regime is mandatory for a vessel of this scale and value.
Alternatives and Comparisons
The 10500 Gallon Vertical Liquid Storage Tank stands at the top of the bulk-storage tier, where the comparison is footprint, draw method, and processing versus holding.
Tall vertical vs. multiple smaller tanks: A single seventeen-foot column concentrates capacity on one engineered foundation and one set of plumbing, which can be more efficient than several smaller tanks — but it puts all the volume in one vessel and demands serious foundation and anchoring engineering. Multiple smaller tanks add redundancy and lower per-tank loads at the cost of more footprint and plumbing. The right answer depends on the site and the operation's risk tolerance.
Siphon vertical vs. cone-bottom: The long 3-inch siphon draws this deep charge down cleanly for high-volume storage and dispensing without a cone's stand and height. If the operation batch-mixes and needs a complete drain every cycle, a bulk cone-bottom vessel is the right tool; for terminal-scale holding and dispensing, the siphon vertical is the standard.
Frequently Asked Questions
How long will the 10500 Gallon Vertical Liquid Storage Tank last?
Within its ratings, on an engineered and anchored foundation, and out of direct sun, the seamless shell delivers many years of service even as the largest tank in the line. At this scale the life-limiting risks are entirely structural and chemical — foundation settling under sixty-six tons, anchoring against wind on a seventeen-foot column, and chemical attack on the deepest lower wall in the catalog. A formal, documented inspection program is what keeps a vessel this large safely in service for the long term.
What chemicals can I store in this tank?
This is terminal-scale bulk chemical infrastructure rated to 1.5 specific gravity, built to hold and dispense agricultural and industrial solutions up to 12.5 pounds per gallon — liquid fertilizers, water-based process chemistries, and similar within that density. It is not for drinking water and never for fuels, solvents, or flammables. At ten thousand gallons an incompatible chemistry is an extremely costly error, so verify every product against a polyethylene compatibility chart before it goes in.
What kind of foundation does a 10500-gallon tank need?
A professionally engineered foundation, without exception. A full 10,500-gallon charge at 1.5 specific gravity is roughly 133,513 pounds — about sixty-six tons — bearing through a seventeen-foot column. This requires a reinforced concrete pad designed for that dead and hydrostatic load, level within an inch across the 130-inch footprint, plus anchoring engineered against wind overturning. This is the most demanding foundation in the range and must be specified by an engineer.
Does this tank come with a warranty?
Yes — Norwesco's 3-year warranty covers material and workmanship defects in the shell when used within its ratings, including molding flaws across the largest wall in the catalog. It does not cover chemical attack from an incompatible product, damage from a settling or inadequate foundation, failure of improper anchoring, or improper installation. Retain all foundation and anchoring engineering documentation with your invoice; at this scale it is essential for any claim.
Can I install this tank underground?
No. The largest bulk vertical in the line is engineered strictly for above-ground service; its wall cannot resist soil and groundwater pressure, and burying a tank this size would invite catastrophic collapse. Burial voids the warranty. For below-grade bulk storage, use a purpose-built underground tank engineered with ribbed, reinforced walls for those loads.
Buying Considerations
Ordering the 10500 Gallon Vertical Liquid Storage Tank is a capital-infrastructure project of the first order. First, the foundation: engage a professional engineer to design a reinforced concrete pad for the roughly 133,513-pound full load and anchoring against wind on a seventeen-foot column, fully completed before the tank ships. Second, the system: plan the 3-inch siphon plumbing and 2-inch reducer, generous thermal-expansion allowance, a vent sized for tanker-rate fill and high-volume draw, and containment for the full 10,500 gallons. Third, the freight and rigging: at 2,158 pounds empty, seventeen feet tall, and eleven feet across, it ships on a dedicated oversized carrier and requires crane and ample clear access to offload and stand — contact us to coordinate delivery and confirm your site can receive and erect it.
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