200 Gallon Vertical Liquid Storage Tank - Natural White (30" x 72") #41516: Complete Buyer's Guide
200-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 200 Gallon Vertical Liquid Storage Tank, part number 41516, is a compact chemical and fertilizer tank built for tight spaces — 72 inches tall on a slim 30-inch base. That column shape lets it hold a useful 200-gallon working supply of chemical against a wall, in a row of tanks, or in any corner of a chemical pad where floor area is scarce.
A single rotomolded piece of virgin linear polyethylene, rated to 1.5 specific gravity, it is engineered for dense agricultural and industrial liquids up to 12.5 pounds per gallon. Operators can read the level from the ground through the translucent white wall without opening the tank, and the same wall reflects sunlight to keep the chemical cooler.
Empty, the tank is an easy 60 pounds to position; filled with a 1.5-SG liquid it puts roughly 2,562 pounds onto its small 4.9-square-foot footprint, so a flat, firm base matters. A factory 2-inch NPT outlet feeds the discharge plumbing and an 8-inch lid provides top access. Because no inlet is supplied, you drill and set a bulkhead wherever your plumbing calls for it.
Key Features and Specifications
- 200-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
- 72" tall x 30" diameter — compact vertical footprint
- 60 lbs empty, approximately 2,562 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
Tank 41516 packs 200 gallons into a 72-inch column on a 30-inch base, and a tall, narrow chemical tank concentrates its load: a full 1.5-SG charge of about 2,562 pounds bears through under five square feet. Compared with a wide tank, this proportion is more sensitive to a tilted base and more inclined to tip if knocked, so a dead-flat pad and a tip restraint lead the install priorities.
Site Preparation
Set it on a level four-inch concrete pad or a small, well-compacted stone bed a few inches wider than the 30-inch base. Flatness matters more here than on a squat tank — a slim column that leans walks its load to one edge of the floor and overstresses the lower wall, where the head pressure is already highest. If the tank stands anywhere a cart or vehicle could reach it, strap the upper body to a wall or post.
Placement and Connections
Plumb the discharge off the factory 2-inch outlet at the foot of a six-foot chemical column and tie the first run in with a chemically compatible flexible connector rather than rigid pipe; a tall poly column shifts most at the top as it fills, and a stiff line drives that into the bulkhead. No inlet comes installed, so place a compatible bulkhead at the fill height your plumbing calls for. Snug the threads by hand and add a quarter turn, no more.
Venting
Even 200 gallons of chemical needs to breathe, and on a slim tank the pressure swing concentrates near the 8-inch lid. Keep the lid's relief path open, and for volatile chemistries fit a pressure/vacuum relief vent rated to the chemical; a blocked vent can pull the upper wall inward fast on a narrow shell during a brisk draw-down. Do not seal the lid against a closed system.
Maintenance and Long-Term Care
A slim 200-gallon chemical tank is serviced for chemical duty, not potable use, and the translucent wall makes monitoring quick from the ground. The routine below watches the cone of priorities for a tall, light tank: a level base, sound fittings, and a vent matched to the chemistry.
Quarterly Inspection Checklist
- Plumb read: Sight the 72-inch column for any bow or lean; on a tall tank a small base tilt magnifies toward the top.
- Outlet check: Inspect the 2-inch outlet and your installed inlet for chemical weeping and confirm both remain compatible with the stored liquid.
- Base level: Confirm the small footprint pad has not settled on one side, which a narrow tank punishes more than a wide one.
- Vent verification: Confirm the 8-inch lid's vent or pressure/vacuum relief is open and correctly rated for the current chemical.
Cleaning
Clean by decontamination per the chemical manufacturer's guidance whenever you switch products; never assume a rinse is enough when changing chemistries. The 2-inch outlet drains the column through the bottom, and the 8-inch lid gives access for inspection, with interior work following chemical-handling protocols. This vessel is for chemical storage and is not to be used for potable water.
UV and Weather Protection
The translucent white shell reflects part of the sun's heat and is UV-stabilized in the resin; inspect the side that faces the sun once a year for chalking. A slim tank heats and cools quickly, so the reflective pigment's moderation of thermal cycling is a genuine benefit on an outdoor column.
Alternatives and Comparisons
This 30-by-72 column (tank 41516) holds 200 gallons of chemical in the smallest possible floor area, where the wider 35-by-59 version of the same volume trades that for a more stable stance. Drop to the 150- or 100-gallon verticals for a smaller volume, or move up to the 250- and 300-gallon tanks for more. Let your available footprint dictate the shape first.
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 200-Gallon Options
Frequently Asked Questions
How long will the 200 Gallon Vertical Liquid Storage Tank - Natural White (30" x 72") #41516 last?
On a flat base, within its 1.5 SG rating, and serviced for the chemicals it holds, this 200-gallon column (41516) runs well past fifteen years. With no weld in the seamless wall to part, a leaning base or an incompatible chemical ends a slim tank early rather than the polyethylene.
What chemicals can I store in this tank?
With its 1.5 specific gravity rating it holds agricultural chemicals, liquid fertilizers, and most industrial solutions to 12.5 pounds per gallon, though you should check every chemical on a polyethylene compatibility chart beforehand. Fuels, solvents, and flammables are off-limits; this is a chemical-storage tank, not a potable-water one.
What kind of foundation does a 200-gallon tank need?
For a 200-gallon column loading roughly 2,562 pounds through a slim 30-inch base, use a flat, firm four-inch concrete pad or a well-compacted stone bed, level to a quarter inch. Flatness matters most here — a tall tank on an uneven base leans and overloads one edge of the wall.
Does this tank come with a warranty?
Yes — Norwesco's 3-year warranty covers manufacturing defects in normal use: factory faults, not overloading past 1.5 SG, a tipped or badly set tank, chemical attack, or impact. Hold on to the receipt and a photo of the install.
Can I install this tank underground?
No. This is an above-ground vessel; with a flat wall unable to resist soil pressure, burial would crush it and void the warranty. If you need it underground, specify a ribbed underground tank designed for soil pressure.
Buying Considerations
Check that a 72-inch tank clears your overhead where it will stand, that the narrow base can sit dead-level since slim tanks punish slope, and that you can strap or brace it if it lives where it might be struck. Confirm the chemistry against polyethylene before you commit to this as its dedicated tank.
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