6100 Gallon Vertical Liquid Storage Tank: Complete Buyer's Guide
A 6,100-gallon Norwesco vertical for large-scale bulk chemical and fertilizer storage — 140 inches tall on a broad 119-inch base, nearly thirty-nine tons when full, with a 3-inch siphon outlet for high-volume transfer. Rated to 1.5 specific gravity, the wall handles liquids to 12.5 pounds per gallon.
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 6100 Gallon Vertical Liquid Storage Tank is large-volume storage that balances height and footprint: a 119-inch base spreads the load broadly while 140 inches of height keeps the overall envelope reasonable for the volume. It anchors a fertilizer operation or industrial chemical feed that takes delivery by the tanker and needs a substantial on-site reserve.
It is plumbed for serious throughput. The outlet is a 3-inch fitting with a 2-inch reducer and a 3-inch siphon tube, sized to move thousands of gallons without bottlenecking. The wide 119-inch base is a structural asset, spreading the enormous load over 77.2 square feet to ease pad pressure relative to a narrower tank. The translucent white walls let you read the level and bounce heat off the large surface.
Empty, the tank weighs 1,287 pounds and requires equipment to handle. Filled with a 1.5-SG liquid it reaches about 77,598 pounds — nearly thirty-nine tons that require a professionally engineered reinforced foundation. The 16-inch lid provides top access for cleaning and mounting instruments. No inlet comes installed — fit a bulkhead where your system needs it.
The tank is a single seamless molding with UV stabilizer in the resin and a 3-year Norwesco warranty behind it. Its dimensions call for dedicated freight and pre-planned site access, coordinated together with you.
Technical Drawing
Official Norwesco technical drawing — 6100 Gallon Vertical Liquid Storage Tank
Key Features and Specifications
- 6,100-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
- 140" tall x 119" diameter — compact vertical footprint
- 1287 lbs empty, approximately 77,598 lbs when full at rated specific gravity
- 3" with 2" Reducer and 3" 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
At nearly thirty-nine tons full, the 6100 is a major structural installation. The wide base helps with pad pressure, but the absolute load demands an engineered foundation and careful planning of access and plumbing.
Site Preparation
This tank requires a reinforced concrete foundation designed by a structural engineer for the full 77,598-pound load and sized to support the entire 119-inch base. The slab must be flat across the diameter within a tight tolerance, since at this weight a high spot creates a severe stress concentration in the lower wall. Coordinate the pad, truck access, and heavy offloading equipment in one plan before the tank arrives.
Placement and Connections
Set the tank with the 3-inch siphon outlet facing your transfer system and the run short. Use schedule-80 PVC or stainless on the bulkhead, hand-tighten with a strap-wrench finish, and add a flexible section before rigid pipe to absorb the large thermal movement. Provide permanent, safe lid access and keep generous clearance around it for inspection.
Venting
Moving thousands of gallons through a 3-inch line shifts huge air volumes, so generous venting is essential to prevent vacuum creasing or over-pressure. Fit a large vent matched to your peak flow rate, and on any off-gassing chemical use a pressure-vacuum relief vent rated for it.
Maintenance and Long-Term Care
A tank of this value justifies disciplined inspection using the permanent access you have built into the installation.
Quarterly Inspection Checklist
- Lower wall: Check the high-stress base ring for any bulge, distortion, or flattened area against the slab.
- Outlet: Inspect the 3-inch fitting and siphon for seepage under the head, hand-snugging as needed.
- Foundation: Examine the engineered slab for cracking or settlement under the wide base.
- Vent: Confirm the large vent is completely open; at this volume a plugged vent can warp the wall in a single fast cycle.
Cleaning
Fully drain via the 3-inch siphon outlet, then run a neutralizing rinse from your top access to clear the previous product. Follow the manufacturer's decontamination procedure, and handle the large rinse volume per its safety data sheet as a scheduled operation.
UV and Weather Protection
The tall, wide shell presents a large south wall; check it annually for chalking. In severe-sun regions, shading the sunny side protects the surface of this large, valuable tank.
Alternatives and Comparisons
At 6,100 gallons the decision is volume strategy and footprint. This wide-base tank spreads its load and consolidates storage onto one foundation; multiple smaller tanks give redundancy and serviceability. A 6,000-gallon tank on a narrower base saves ground but raises pad pressure; a 6,500 or 7,800 steps volume up. For batch processing needing a full drain at this scale, a large cone-bottom on a steel stand is the right tool. And for bulk water, a black water tank costs less by carrying a lighter 1.1-SG wall than this 1.5-SG chemical build.
Frequently Asked Questions
How long will the 6100 Gallon Vertical Liquid Storage Tank last?
With an engineered foundation, use inside the 1.5-SG rating, and compatible chemistry, fifteen to twenty years is realistic — and well-kept tanks of this build commonly run longer. The seamless shell and in-resin UV package make the vessel durable; what shortens it is an overloaded or vacuum-creased wall, a chemical attack, or a foundation never designed for nearly thirty-nine tons.
What chemicals can I store in this tank?
Its 1.5-SG rating spans most liquid fertilizers, agricultural chemicals, and a wide set of industrial acids and bases to 12.5 pounds per gallon. Those are compatible, but keep strong oxidizers, many solvents, and all flammable fuels out of polyethylene. Cross-check your product on a poly compatibility chart and verify its specific gravity prior to filling.
What kind of foundation does a 6100-gallon tank need?
A full load is roughly 77,598 pounds, requiring a reinforced concrete foundation engineered by a structural professional and sized to support the full 119-inch base. The wide base lowers pad pressure, but a dead-level engineered slab is essential at this weight.
Does this tank come with a warranty?
Yes — Norwesco's three-year warranty addresses molding defects, pinholes, and faulty factory fittings. It does not cover exceeding 1.5 SG, chemical attack, a non-engineered foundation, or impact damage. Save your purchase invoice and installation paperwork in case of a claim.
Can I install this tank underground?
No. Built as an above-ground vertical, its flat-walled shell would fail under the pressure of surrounding soil. At this scale below grade, use vessels with ribbed, reinforced walls built for soil loads.
Buying Considerations
Settle three points before you order. First, the foundation — nearly thirty-nine tons full requires a professionally engineered reinforced slab specified ahead of delivery. Second, access and offloading — at 1,287 pounds empty and over eleven and a half feet tall, it ships by dedicated freight and needs heavy equipment and clear access to set. Third, confirm the liquid sits at or below 1.5 specific gravity and verify how much it weighs. Contact us early to plan delivery logistics and confirm site requirements.
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