3450 Gallon Vertical Liquid Storage Tank: Complete Buyer's Guide
The 3,450-gallon vertical strikes a middle ground between the slender column tanks and the wide bulk bodies — 120 inches tall on a 96-inch base, a balanced ten-foot tank for substantial chemical and fertilizer storage. Its 1.5 specific-gravity wall and a 2-inch outlet with a siphon tube make it a serious mid-bulk vessel.
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
Thirty-four hundred fifty gallons in a ten-foot-tall, eight-foot-wide package is a well-proportioned mid-bulk tank — tall enough to deliver real capacity without the floor sprawl of a 5,000-gallon wide body, yet broad enough that its 96-inch base keeps it stable and spreads the load. For an operation that has outgrown thousand-gallon tanks but isn't at full bulk scale, this is the natural step up.
Norwesco molds it as one seamless piece of virgin linear polyethylene, rated to a 1.5 specific gravity, so the wall handles liquids up to 12.5 pounds per gallon — the dense agricultural chemicals, liquid fertilizers, and treatment solutions a mid-bulk tank is bought for. At ten feet of liquid head the base region sees meaningful hydrostatic pressure, and the wall is graduated to carry it; the 96-inch base keeps the proportions sane enough that the foundation requirements, while serious, are less extreme than a tall slender tank's.
Empty, the tank weighs 505 pounds — freight-and-machinery territory for positioning. Filled with a 1.5-SG product it puts roughly 43,664 pounds on the pad, better than twenty tons distributed across the eight-foot base. The translucent natural-white wall provides a tall, readable level gauge and reflects sunlight to keep contents cooler. Maximum service temperature is 120°F, with UV stabilizers compounded into the resin for outdoor service.
The outlet is a 2-inch fitting with a siphon tube, factory-installed and leak-tested. The siphon draws from low in the tank for fuller recovery — a practical feature when you want to use the full thirty-four hundred gallons rather than stranding product. The 16-inch lid serves fill, vent, and inspection. Norwesco's 3-year warranty applies, and the tank ships via dedicated freight carrier given its size — contact us for delivery timeline and site-access requirements.
Technical Drawing
Official Norwesco technical drawing — 3450 Gallon Vertical Liquid Storage Tank
Key Features and Specifications
- 3,450-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
- 120" tall x 96" diameter — compact vertical footprint
- 505 lbs empty, approximately 43,664 lbs when full at rated specific gravity
- 2" fitting with 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
- Install on a level, compacted surface. Ensure adequate clearance above for lid access and around the perimeter for plumbing connections and visual inspection
- Ships via dedicated freight carrier due to oversized dimensions — contact us for delivery timeline and site access requirements
Installation and Setup Guide
A twenty-ton full tank ten feet tall is a genuine foundation job, but its balanced proportions make it more forgiving than the extreme tall tanks. Spend your effort on a properly engineered, level pad and a realistic plan for setting the empty shell.
Site Preparation
Specify an engineered concrete slab for the full twenty-plus-ton load across the 96-inch base. The eight-foot footprint distributes the weight better than a narrow tank would, but ten feet of liquid head still concentrates real pressure at the base, so the slab and compacted subgrade must be sized for it. Level within an inch across the diameter, on subgrade that won't settle differentially. Leave perimeter room for the freight set, plumbing, and inspection.
Placement and Connections
Route the 2-inch siphon-tube outlet for the shortest, cleanest run to your pump — keep the geometry tidy so the low siphon draw doesn't trap air and lose prime. Fit a flexible coupling at the bulkhead; a ten-foot column flexes with thermal cycling and a rigid line on a heavily loaded fitting will eventually crack or loosen. The 16-inch lid sits ten feet up, so plan platform or ladder access for filling and inspection rather than improvising.
Venting
Match the vent in the 16-inch lid to your maximum draw through the 2-inch outlet. A mid-bulk tank pulled down quickly without adequate air intake can develop damaging vacuum, and at this height the wall is tall enough to buckle if it can't breathe. For off-gassing products, use a pressure/vacuum relief vent rated to the vapor rather than a plain screened vent.
Maintenance and Long-Term Care
The 3,450's maintenance blends tall-tank and bulk-tank concerns: watch the base region for high-head stress, watch the broad base for settlement, and protect the substantial volume inside.
Quarterly Inspection Checklist
- Plumb and base: Check that the ten-foot column stands true and the 96-inch base hasn't settled at any point. Either a lean or an uneven base loads the wall asymmetrically — correct the pad before the next fill.
- Lower wall: The base region carries the peak hydrostatic load from ten feet of liquid. Inspect the bottom third for bulging or distortion, especially after a denser product.
- Siphon outlet: Inspect the 2-inch fitting for weeping and confirm the siphon draws cleanly. Hand-tighten the connection only.
- Vent: Confirm the vent is open and sized to the draw rate; a plugged vent is the classic tall-tank killer.
Cleaning and Changeover
Drain through the siphon outlet for fuller recovery, then flush per the outgoing chemical's procedure before switching products — the residue volume in a poorly cleaned mid-bulk tank is significant and can react with or contaminate the next load. Inspect the floor through the 16-inch lid for settled solids, confirm polyethylene compatibility with the incoming chemistry, and manage rinsate per the label and your permits.
UV and Heat
The ten-foot wall takes substantial sun. Inspect the exposed side annually for chalking, and consider that a large stored volume buffers temperature swings — helpful for stability, but a reason to manage extreme heat for sensitive products. In a harsh-UV climate, shading meaningfully extends the tank's life.
Alternatives and Comparisons
Mid-bulk capacity invites a couple of useful comparisons:
This versus a wide 5,000-gallon body: if your floor is tight, the 3,450's taller, narrower stance fits where a wide bulk tank won't, while still being far more stable than an extreme slender tank. If you have the floor and want maximum stability and a simpler foundation, the wider body is easier — but it costs significant floor area.
This versus stepping down to a thousand-gallon class: if you're filling a thousand-gallon tank too often, the 3,450 roughly triples reserve on a foundation that, while engineered, is still manageable — the better move when refill frequency is your bottleneck.
Other 3450-Gallon Options
Frequently Asked Questions
How long will the 3450 Gallon Vertical Liquid Storage Tank last?
Fifteen to twenty years is realistic with an engineered, level pad and use within the 1.5-SG and 120°F ratings. The balanced proportions help — this tank avoids the extreme lean-stress risk of taller vessels — so foundation quality and chemical compatibility are the main determinants of reaching the upper end of the range.
What chemicals can I store in this tank?
The 1.5-SG rating covers ag chemicals, liquid fertilizers, herbicides, pesticides, and industrial and treatment solutions up to 12.5 pounds per gallon. Not for fuels, solvents, or flammables. Confirm the specific product on a compatibility chart before committing — polyethylene resists most acids and bases but is attacked by certain hydrocarbons and strong oxidizers.
What kind of foundation does a 3450-gallon tank need?
It needs an engineered concrete slab sized for roughly 43,664 pounds across the 96-inch base, level within about an inch and on uniformly compacted subgrade. The eight-foot footprint distributes the load better than a narrow tank, but twenty-plus tons still demands a properly specified, non-settling foundation.
Does this tank come with a warranty?
Yes — Norwesco's 3-year warranty covers factory material and workmanship defects. It excludes over-spec products, improper or uneven installation, incompatible-chemical attack, and impact damage. Keep your receipt and documentation of the engineered, level pad.
Can I install this tank underground?
No — this is an above-ground vertical not built for burial; soil pressure would deform the wall. For below-grade storage choose a purpose-built underground cistern engineered to resist soil load.
Buying Considerations
Three checks before ordering. Confirm you have the ten feet of vertical clearance plus access to the lid for filling and inspection. Make sure an engineered, level slab for twenty-plus tons is in your project scope. And verify your product sits at or under 1.5 SG. This tank rewards a site with both some height and some floor by giving you mid-bulk capacity in a stable, well-proportioned package. It ships by dedicated freight carrier — call us to coordinate delivery and confirm you have the machinery and access to set the empty shell.
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