250 Gallon Vertical Liquid Storage Tank - Natural White (30" x 68"): Complete Buyer's Guide
A 250-gallon vertical liquid tank from Norwesco, the largest of its stocky 30-inch family, in 1.5-specific-gravity polyethylene with a full 2-inch transfer outlet.
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 250-gallon vertical liquid tank is the largest of Norwesco's stocky 30-inch-diameter chemical tanks — a quarter-thousand gallons of ag or industrial chemistry in a footprint that still fits a corner of a shop or the deck of a trailer. It stands 68 inches tall on that 30-inch base, weighs 65 pounds empty, and is the step where a single person hands off to a hand truck.
It is molded as one seamless piece of virgin linear polyethylene rated to 1.5 specific gravity, handling dense liquids up to 12.5 pounds per gallon. The translucent white wall shows the level by eye and reflects sun to keep contents cooler; the resin is FDA-compliant for food-grade liquids.
Full at the rated gravity it weighs about 3,192 pounds, so a firm level pad carries it without engineered work. The outlet is a full 2-inch fitting for real transfer flow, factory-installed and leak-tested, and the 8-inch lid opens the top for fill and inspection. Norwesco's 3-year warranty applies.
Technical Drawing
Official Norwesco technical drawing — 250 Gallon Vertical Liquid Storage Tank - Natural White (30" x 68")
Key Features and Specifications
- 250-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
- 68" tall x 30" diameter — compact vertical footprint
- 65 lbs empty, approximately 3,192 lbs when full at rated specific gravity
- 2" NPT outlet fitting — factory installed and leak-tested
- 8" 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
- Place on a firm, level surface free of rocks or sharp objects that could damage the tank bottom. Ensure adequate ventilation if stored chemicals produce vapors
- Ships via LTL freight on a pallet — residential delivery with lift gate available
Installation and Setup Guide
The 250 is the heaviest tank in its format but still a straightforward set — no engineered slab, just a flat firm pad and a properly matched 2-inch outlet line.
Site Preparation
Stand the tank on a level surface of compacted gravel or a concrete pad that supports the full 30-inch base. At a ton and a half full it carries easily on sound ground; flat, even support is the requirement, plus a sealed surface or berm to catch a spill where the chemical warrants it.
Placement and Connections
A foot of clearance handles service. The 2-inch outlet supports a real transfer pump, so plumb it by the shortest run with chemical-rated flexible couplings and match every gasket and valve to the chemistry.
Venting
With a 2-inch outlet this tank moves liquid quickly, so vent it to match — a lid vent sized to the flow keeps the wall from pulling in on a fast draw, and a chemistry-rated vent handles off-gassing contents.
Maintenance and Long-Term Care
Inspect shell, seals, base, and vent each quarter — the chemical-tank essentials at a manageable scale.
Quarterly Inspection Checklist
- Shell: look the translucent wall over for distortion or stress whitening.
- Seals and outlet: inspect the 2-inch fitting and valves for chemical attack; hand-snug only.
- Base: confirm flat, even support and no pad settling.
- Vent: verify the lid vent is clear.
Cleaning and Chemical Changeover
Decontaminate per the chemical manufacturer's protocol before switching products, capturing rinsate for disposal, and confirm the incoming chemical against the polyethylene and seals before refilling.
UV and Weather Protection
Some light passes through the white wall, so shade light-sensitive or algae-prone contents in strong sun and inspect it yearly.
Alternatives and Comparisons
The 250-gallon vertical tops out the stocky 30-inch family. A 300-gallon cone-bottom drains completely through its apex for batch work on a stand; the 525-gallon vertical is the next step up in straight storage. If the tank needs to ride in a vehicle, a low-profile transport tank in this volume is steadier loaded.
Other 250-Gallon Options
Frequently Asked Questions
How long will the 250 Gallon Vertical Liquid Storage Tank - Natural White (30" x 68") last?
Within its 1.5 SG and 120 F limits and with compatible chemistry, expect 15 to 20 years. Seal compatibility and a flat base are the determinants — the seamless shell has no joint to fail.
What chemicals can I store in this tank?
Rated for 1.5 specific gravity, it takes ag chemicals, fertilizers, and industrial solutions in that density, in resin that is FDA-compliant for food-grade use. Not for fuels, solvents, or flammables. Verify both chemical and seal compatibility on a chart before charging the tank.
What kind of foundation does a 250-gallon tank need?
Full at the rated gravity it weighs about 3,192 pounds — a ton and a half — so a level surface of compacted gravel or a concrete pad carries it without engineered work. Flat, even support under the full 30-inch base is what matters, plus a sealed surface or berm for spill control where the chemical warrants it.
Does this tank come with a warranty?
The tank is warranted for three years by Norwesco against manufacturing and fitting defects. Incompatible chemicals, misuse, and impacts are not covered. Keep your receipt for any claim.
Can I install this tank underground?
No. This is an above-ground design whose walls cannot take soil pressure. For below-grade storage, select a purpose-built underground tank.
Buying Considerations
Confirm a flat, firm pad for the 30-inch base, a chemical at or under 1.5 SG compatible with the polyethylene and seals, and spill control where warranted. It ships LTL on a pallet, with lift-gate residential delivery offered.
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