100 Gallon Vertical Liquid Storage Tank - Natural White (28" x 43"): Complete Buyer's Guide
100-gallon white liquid storage tank built for agricultural chemical and fertilizer storage. Manufactured by Norwesco from virgin linear polyethylene (HDPE) rated to handle liquids up to 12.5 pounds per gallon. FDA approved for contact with potable water, ensuring safe storage for drinking water and food-grade liquids.
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 100 Gallon Vertical Liquid Storage Tank in translucent white is a small chemical and fertilizer tank, holding 100 gallons in a compact 43-inch body on a 28-inch base. Its modest size makes it ideal for point-of-use chemical supply, batch metering, or a tidy reserve where a larger tank would simply be in the way.
Rotationally molded from virgin linear polyethylene in a single piece and rated to 1.5 specific gravity, it is built for dense farm and industrial liquids to 12.5 pounds per gallon. A glance at the translucent white wall shows the level, and the same wall reflects sunlight to keep the chemical cooler.
Empty, the tank weighs 50 pounds; filled with a 1.5-SG liquid it puts roughly 1,301 pounds onto its 4.3-square-foot footprint. A factory-fitted 2-inch NPT outlet manages discharge while an 8-inch lid gives access. No inlet comes fitted; install a bulkhead at whatever point your plumbing dictates.
Key Features and Specifications
- 100-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
- 43" tall x 28" diameter — compact vertical footprint
- 50 lbs empty, approximately 1,301 lbs when full at rated specific gravity
- 1.25 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 UPS or FedEx ground — typically arrives within 5-7 business days
Installation and Setup Guide
At 43 inches tall on a 28-inch base, this 100-gallon tank is a small, fairly stocky chemical vessel whose full 1.5-SG load of about 1,301 pounds is light enough to make weight a minor concern. The install instead turns on a flat base, tidy chemical plumbing, and securing a light tank that is easy to bump — think point-of-use station rather than bulk storage.
Site Preparation
A level four-inch pad, a sturdy load-rated platform, or a flat stretch of concrete sized past the 28-inch base does the job; bring it flat to a quarter inch so the body sits true. Because the tank is light, fasten or strap it where it could be knocked, especially if it lives on a platform or near traffic — a tank this size shifts easily when bumped.
Placement and Connections
Run the discharge from the factory 2-inch outlet through a chemically compatible flexible coupling, letting the tank shift slightly without straining the bulkhead. Lacking a factory inlet, the tank takes a compatible bulkhead drilled in at your chosen fill height. Use chemical-rated plumbing and hand-tighten the poly threads only a quarter turn past snug, since the smaller fittings on a tank this size strip easily.
Venting
A 100-gallon chemical tank still needs to breathe. Leave the 8-inch lid's vent open so air follows the liquid, and add a pressure/vacuum relief vent rated to the chemical for volatile contents. Even at this size a sealed tank can deform under a brisk pump-out, so keep the relief path clear and matched to the stored liquid.
Maintenance and Long-Term Care
A small 100-gallon chemical tank is the easiest vertical to inspect — every surface is within reach and the translucent wall reads the level instantly. Maintenance is chemical-tank work, not potable, and focuses on compatible fittings, a clear vent, and decontamination between products.
Quarterly Inspection Checklist
- Quick visual: Scan the whole 43-inch body through the translucent wall for bulging, stress whitening, or weeping — a thirty-second job on a tank this small.
- Outlet and bulkhead check: Inspect the 2-inch outlet and your installed inlet for chemical weeping, taking care since small fittings are easy to over-torque.
- Support check: Confirm the pad or platform is sound and the light tank has not shifted.
- Vent verification: See that the 8-inch lid's vent or pressure/vacuum relief is free and rated for whatever chemistry the tank holds.
Cleaning
Decontaminate to the chemical manufacturer's guidance whenever you change products; a small tank's residue still cross-contaminates if you only rinse. The 2-inch outlet drains it, and the 8-inch lid gives easy access for inspection under chemical-handling precautions. Use it only for chemical storage — potable water is not an approved use.
UV and Weather Protection
The translucent white wall reflects sunlight to keep the chemical cooler and carries UV stabilizer in the resin; check the sun-facing side periodically for chalking. A 100-gallon tank is small enough to site under cover or indoors easily, which spares it most UV exposure entirely.
Alternatives and Comparisons
This 100-gallon vertical suits point-of-use and small-batch chemical supply, where the 75- and 50-gallon tanks handle even smaller needs and the 150- and 200-gallon tanks step up. Let the volume of chemical you turn over and your refill frequency guide the choice.
Vertical vs. Horizontal: Vertical tanks use less floor space for the same capacity but require more overhead clearance. If you have height restrictions, consider a horizontal or low-profile tank. Vertical tanks also drain more completely due to gravity — the liquid column above the outlet creates positive pressure all the way to the last few gallons.
Other 100-Gallon Options
Frequently Asked Questions
How long will the 100 Gallon Vertical Liquid Storage Tank - Natural White (28" x 43") last?
On a flat support, within its 1.5 SG rating, and serviced for the chemicals it holds, this 100-gallon tank lasts well over a decade and often far longer, since a small tank is easy to keep out of harsh sun and simple to maintain. An incompatible chemical, not age, is what shortens it.
What chemicals can I store in this tank?
The 1.5 specific gravity rating suits agricultural chemicals, liquid fertilizers, and most industrial solutions to 12.5 pounds per gallon, but run each chemical past a polyethylene compatibility chart before storing it. Leave fuels, solvents, and flammables out, and treat the tank as chemical storage rather than a drinking-water reserve.
What kind of foundation does a 100-gallon tank need?
For a 100-gallon tank loading roughly 1,301 pounds, a flat, load-rated surface — concrete pad, sturdy platform, or compacted bed — held level is all it needs. Keep it level so the body sits true and secure it against being bumped.
Does this tank come with a warranty?
Yes — under normal use Norwesco's 3-year warranty covers manufacturing defects, meaning factory faults rather than overloading past 1.5 SG, chemical attack, a drop, or other misuse. Save the receipt so any future claim is straightforward.
Can I install this tank underground?
No. Even at 100 gallons this is an above-ground tank whose flat wall cannot resist soil pressure; burying it would collapse it and void the warranty. For below-grade storage, use a small ribbed underground tank built for burial.
Buying Considerations
Confirm a small flat support and a way to secure the light tank, keep it near the process it feeds to shorten the chemical plumbing, and verify the chemistry against polyethylene before dedicating the tank to it. Its low weight makes relocation simple if needs change.
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