100 Gallon 15 Degree Cone Bottom Tank: Complete Buyer's Guide
A 100-gallon 15-degree cone-bottom tank from Norwesco for benchtop and small-batch self-draining, a slim 23-inch shell in 1.5-specific-gravity polyethylene.
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 15-degree cone-bottom tank brings complete drainage to a benchtop or small-batch scale — the size for mixing a small charge, settling and decanting, or feeding a process that has to empty fully between runs. The shallow 15-degree cone keeps the overall height manageable (63 inches tall on a slim 23-inch diameter) while still draining free-flowing liquids clean to the center outlet. The shell weighs 50 pounds.
Virgin linear polyethylene, molded seamlessly in one piece and rated to 1.5 specific gravity, carries 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, and the resin is FDA-compliant for food-grade liquids.
Even at this small size the cone has no flat base, so it sits on a stand that carries the full load — about 1,301 pounds at the rated gravity — through its flange and legs, never the apex. The 2-inch center outlet is factory-fitted and leak-tested for clean draw, and the 8-inch lid opens the top for fill and inspection. Norwesco's 3-year warranty applies.
Technical Drawing
Official Norwesco technical drawing — 100 Gallon 15 Degree Cone Bottom Tank
Key Features and Specifications
- 100-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
- 63" tall x 23" diameter — compact vertical footprint
- 50 lbs empty, approximately 1,301 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
- 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 UPS or FedEx ground — typically arrives within 5-7 business days
Installation and Setup Guide
Small as it is, the 100-gallon cone follows the same rule as its big siblings: a stand carries the tank, the apex carries nothing. The setup is quick once the stand is sorted.
Site Preparation and the Stand
Mount the tank on a compatible stand rated for the full load, set on a level surface of compacted gravel or a flat sealed floor. The stand keeps the cone off the ground and leaves room for a valve beneath; never set the cone tip directly on a surface. Place it over a sealed area or drip tray for a concentrate.
Placement and Connections
About a foot of clearance covers service access. Plumb the 2-inch center outlet down into a valve with chemical-rated flexible tubing, keeping the run short so the complete-drain advantage carries through. Match the tubing, gaskets, and valve to the chemistry — on a small batch tank the seals see the chemistry constantly.
Venting
Fit a lid vent so the slim wall does not pull in on a fast drain, and a chemistry-rated vent for off-gassing contents.
Maintenance and Long-Term Care
Watch the stand, the seals, and the chemistry; the small shell looks after itself.
Quarterly Inspection Checklist
- Stand: confirm the stand is sound, level, and bearing the load evenly on all legs.
- Cone and shell: look through the translucent wall for distortion or stress whitening at the cone transition.
- Outlet and seals: inspect the 2-inch valve, tubing, and gaskets for chemical attack and free operation; hand-snug only.
- Vent: verify the lid vent is clear.
Cleaning and Chemical Changeover
The complete-draining cone is ideal for frequent batch changeovers — it rinses clean with no residual heel. Flush per the chemical manufacturer's protocol, capture rinsate for disposal, and confirm the incoming chemical against the polyethylene and seals before refilling. Log changeovers to avoid cross-contamination.
UV and Weather Protection
The white wall passes some light; shade light-sensitive contents or keep the tank indoors. For most bench installs this is a non-issue.
Alternatives and Comparisons
The 100-gallon 15-degree cone is the small-batch self-drainer. A 105-gallon flat-bottom vertical stores nearly the same volume without a stand if you do not need complete drainage. For steeper drainage of thicker mixes at small scale, a higher-angle cone clears heavier solids; for more batch volume, the 300-gallon cone steps up.
Other 100-Gallon Options
Frequently Asked Questions
How long will the 100 Gallon 15 Degree Cone Bottom Tank last?
Within its 1.5 SG and 120 F ratings, with compatible chemistry and a sound stand, this small cone will serve well past 15 years. The seamless shell has no joint to fail, so seal compatibility and the stand's condition are the real life-limiters.
What chemicals can I store in this tank?
With a 1.5 specific gravity rating it takes agricultural chemicals, fertilizers, and industrial solutions of that density; the resin is FDA food-grade compliant. Not for fuels, solvents, or flammables. Verify the chemistry and your seal materials on a compatibility chart before the tank goes into service.
What kind of foundation does a 100-gallon tank need?
Even at 100 gallons the cone has no flat base, so the foundation supports a stand. Use a compatible stand rated for the full 1,301-pound load, carrying the tank through its flange and legs and never the apex, set level on compacted gravel or a flat sealed floor. Never rest the cone tip directly on a surface.
Does this tank come with a warranty?
The build is warranted three years by Norwesco against manufacturing and fitting defects. Excluded are overloading, an inadequate stand, chemical attack, and impact. Keep your receipt for any claim.
Can I install this tank underground?
No. Cone-bottom tanks live on a stand above ground and cannot be buried. For below-grade storage, choose a tank rated for underground service.
Buying Considerations
Confirm a compatible stand for the cone, a chemical at or under 1.5 SG compatible with the polyethylene and seals, and spill control for a concentrate. Freight is easy at this size — the tank ships UPS or FedEx ground and typically arrives within 5 to 7 business days.
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