1000 Gallon 45 Degree Cone Bottom Tank: Complete Buyer's Guide
1,000-gallon white cone bottom tank built for full-drain mixing and batch processing. 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 1,000 Gallon 45 Degree Cone Bottom Tank is plant-scale process equipment. The steep 45-degree cone evacuates settling solids, slurries, and viscous liquids to near zero, and at a full thousand gallons it serves continuous batch operations in chemical processing, water treatment, and large agricultural blending. This is the size at which a cone tank stops being a convenience and becomes infrastructure on an engineered foundation.
The vessel is rotationally molded in one seamless piece from virgin linear polyethylene, with no joints to fail along the deep cone, and rated to 1.5 specific gravity for liquids up to 12.5 pounds per gallon. The resin carries compounded UV protection and a 120 F / 48 C continuous-service rating, and the translucent natural-white wall lets operators read the level and inspect the cone shoulder without opening up.
It measures 72 inches across and 89 inches tall, weighs 239 pounds empty, and approaches 12,749 pounds full at 1.5 SG — load that concentrates through the stand legs into the slab. A factory 2-inch NPT outlet at the cone tip provides strong gravity discharge from the tall liquid column, and the 16-inch lid accommodates a mixer, instrumentation, or a fill line. It is backed by Norwesco with a 3-year manufacturing-defect warranty.
Technical Drawing
Official Norwesco technical drawing — 1000 Gallon 45 Degree Cone Bottom Tank
Key Features and Specifications
- 1,000-gallon capacity — sized for full-drain mixing and batch processing
- Constructed from virgin linear polyethylene (HDPE) with 1.5 specific gravity rating — handles liquids up to 12.5 lbs/gal
- 89" tall x 72" diameter — compact vertical footprint
- 239 lbs empty, approximately 12,749 lbs when full at rated specific gravity
- 2" 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
- Must be installed on the manufacturer-supplied or compatible stand rated for the full loaded weight. Never rest a cone bottom tank directly on its apex
- Ships via LTL freight — allow 2-3 weeks for delivery. Lift gate and residential delivery available at additional cost
Installation and Setup Guide
A thousand gallons on a 45-degree cone is where cone-bottom storage starts to feel like real plant equipment. The body is 72 inches across and 89 inches tall before any stand, and the steep cone reaches well below that. Loaded to 1.5 SG the tank approaches 12,749 pounds, which puts the stand and foundation squarely in engineered-structure territory. This is not a tank you set on a couple of timbers.
Foundation and Stand
Pour a reinforced concrete slab sized by a structural professional for the concentrated leg loads a stand imposes — nearly thirteen thousand pounds funneling through a handful of footings is a very different case from a flat tank spreading its weight evenly. Match the stand to a 72-inch cone, rate it well above the wet weight, and level it meticulously. At this scale a stand even slightly out of plane will work the cone seat loose over hundreds of fill cycles.
Seating the Cone
Cradle the cone fully in the seat with continuous circumferential contact. Unsupported spans at this weight are exactly where a stress crack initiates. Confirm the seat ring is true and the legs are shimmed level before lowering the tank, and keep the apex clear of any hard point — it drains, it does not support.
Plumbing
The 2-inch NPT outlet at the cone tip delivers a strong gravity draw from a full thousand-gallon column. Run schedule 80 PVC or stainless, support it independently in the first foot, and fit a full-port valve plus, if you pump solids, a strainer. The 16-inch lid accommodates a top-entry mixer, level instrumentation, or a fill line; vent it to your chemistry and size the breather for the brisk draw a tall cone produces.
Maintenance and Long-Term Care
At a thousand gallons the consequences of neglect scale up with the weight, so the quarterly inspection is non-negotiable. You are monitoring a heavily loaded structure and an active chemical path together.
Structural and Process Checks
- Stand and footings: Inspect legs, welds or molded joints, and the slab for cracking, corrosion, or settlement. A bowed leg or a footing that has dropped out of plane at this weight is an urgent fix, not a note for later.
- Cone tip and outlet: The apex collects settled solids and peak concentration. Check the 2-inch fitting and valve for weeping each quarter and confirm the tip clears completely on drain.
- Stress shoulder: Backlight the natural-white wall and read the cylinder-to-cone transition for milky banding. On a 12,000-pound 45-degree cone, that shoulder is the highest-stress region in the part.
Cleaning
Open the valve and let the steep cone evacuate liquid and solids together before rinsing from the lid — the geometry spares you most of the manual cleaning a flat tank demands. On a chemistry change, decontaminate to the incoming product's specification and verify polyethylene compatibility. This is chemical-process storage with no potable-water role, so cleaning is about eliminating carryover.
UV and Resin
The compounded UV package protects the wall outdoors; inspect the sun-facing side yearly for chalking and shade it in severe-UV climates to extend service life. The translucent wall is both your level gauge and your structural early-warning system.
Alternatives and Comparisons
The 1,000-gallon 45-degree cone is the size where operators commit to cone-bottom processing as infrastructure rather than a benchtop convenience. Its steep drain is the defining trait.
Where it fits: Against the 500-gallon cones, this tank doubles batch capacity and the gravity head behind your outlet, at the cost of a heavier engineered stand and slab. Against a 1,000-gallon flat-bottom vertical, the 45-degree cone evacuates settling and viscous chemistry to essentially zero, but stands far taller and requires a structural stand the flat tank avoids. Choose the cone when complete drainage between batches is worth the height and the foundation work.
Other 1000-Gallon Options
Frequently Asked Questions
How long will the 1000 Gallon 45 Degree Cone Bottom Tank last?
On a sound engineered stand and within the 1.5 SG and 120 F limits, expect 15 to 20 years. Complete drainage keeps the cone free of a stagnant, attacking heel, which favors longevity. The usual life-shorteners are a marginal stand or slab, thermal cycling, and chemistry pushed past polyethylene's compatibility limits.
What chemicals can I store in this tank?
It accepts the 1.5-SG range of agricultural and industrial liquids, and the 45-degree cone is ideal for settling and viscous products within that density — slurries, suspensions, and water-treatment chemistry. Confirm polyethylene compatibility for each product first. No fuels, solvents, or flammables. In cone duty this is chemical-process equipment, never a potable-water tank.
What kind of foundation does a 1000-gallon tank need?
A full tank nears 12,749 pounds at 1.5 SG, all of it concentrated through the stand legs. That requires an engineered reinforced-concrete slab designed for point loads by a structural professional, plus a stand rated above the wet weight. A generic distributed-load pad is not adequate at this scale.
Does this tank come with a warranty?
Yes. Norwesco warrants the tank against manufacturing defects in materials and workmanship under normal use, covering molded-in faults. It excludes stand or foundation failures, overloading beyond the rated SG, incompatible-chemical attack, and impact. Keep your documentation and photos of the engineered installation.
Can I install this tank underground?
No. A 1,000-gallon 45-degree cone is built to hang in an above-ground stand and cannot withstand soil pressure. Putting it underground would crush the cone and void the warranty. For below-grade storage, use our reinforced underground cistern or septic products.
Buying Considerations
Three decisions govern a successful install of this 1,000-gallon cone. First, the engineered foundation and stand: the slab must be designed for concentrated leg loads and the stand rated above the roughly 12,749-pound wet weight at 1.5 SG and matched to the 72-inch cone. Second, total height, because a 45-degree cone on a stand stacks up well over ten feet and your fill and service access must reach it. Third, your stored chemistry, verified against a polyethylene compatibility chart. This tank ships oversized on a dedicated truck and needs a forklift or crane to set onto its stand; we quote freight to your ZIP.
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