300 Gallon Vertical Liquid Storage Tank - Natural White (46" x 50"): Complete Buyer's Guide
300 Gallon Vertical Liquid Storage Tank - Natural White (46" x 50") from Norwesco.
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.
Installation and Setup Guide
This 300-gallon chemical tank takes the stable route — a 46-inch base under a 50-inch body — making it nearly as wide as it is tall and far steadier than the slim-column version of the same capacity. The low center of gravity all but removes the tipping concern, so while a flat, firm pad is still the foundation of a good install, this tank forgives more than a tall one would.
Site Preparation
Build a level four-inch concrete pad or a compacted crushed-stone bed sized a few inches past the 46-inch base. Hold it flat across the full diameter so the chemical load bears evenly on the floor; even a wide tank drives extra stress to the downhill edge on a slope. Steer clear of loose gravel and bare soil; both rut under the constant fill-and-draw cycling.
Placement and Connections
Take the discharge from the lowest fitting and break the run with a chemically compatible flexible coupling so the tank's thermal movement never loads the bulkhead. Drill and add a compatible inlet bulkhead at your fill height if needed. Use chemical-rated piping, keep the line short, and hand-tighten the poly threads a quarter turn past snug rather than with a wrench.
Venting
Keep air moving with the chemical: leave the lid vent open so the tank breathes both directions, and for volatile chemistries fit a pressure/vacuum relief vent rated to the chemical instead of a bare screen. The wide body tolerates a vent hiccup a little better than a slim tank, but a fully blocked vent will still dish the top under a hard pump-out.
Maintenance and Long-Term Care
A stable, low 300-gallon chemical tank is serviced for chemical duty, not potable use, and the translucent wall makes inspection a quick glance. The routine below covers what a wide chemical tank needs: a sound base, compatible tight fittings, and a vent matched to the chemistry.
Quarterly Inspection Checklist
- Wall sweep: Circle the 50-inch body and use the translucent wall to spot any low bulge or stress whitening flagging a settled base or overweight chemical.
- Fittings check: Examine the outlet and any installed inlet for weeping and verify continued compatibility with the contents.
- Base audit: Confirm the wide base is fully supported and that no edge has been undercut by erosion.
- Vent verification: Check the lid vent or pressure/vacuum relief is open and matched to the stored chemistry.
Cleaning
Whenever you switch products, decontaminate per the chemical maker's procedures — rinsing by itself does not clear residue across chemistries. The bottom outlet drains the tank, and the low body keeps the lid within easy reach for inspection under chemical-handling precautions. As a chemical-storage tank, it is not suitable for potable-water use.
UV and Weather Protection
The white translucent wall sheds sunlight to keep the chemical cooler and has UV stabilizer compounded in; look over the sun-facing side each year for chalking. The low, broad form is also simple to shade if it sits in punishing light, which moderates the chemical's temperature further.
Alternatives and Comparisons
This 46-by-50 tank is the stable, low-profile take on 300 gallons of chemical, where the taller 35-by-79 version wins on floor space. For less, the 250- or 200-gallon verticals; for more, the 850-gallon and larger tanks. For your pad, weigh the tank's stance against the floor area it needs.
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 -Gallon Options
Frequently Asked Questions
How long will the 300 Gallon Vertical Liquid Storage Tank - Natural White (46" x 50") last?
With a level pad, operation within its rated density, and decontamination between chemistries, this squat 300-gallon tank serves well past fifteen years. The seamless wall has nothing to delaminate and the low, wide stance makes tipping essentially a non-issue; an incompatible chemical or a settled base ends tanks early, not the resin.
What chemicals can I store in this tank?
It handles agricultural chemicals, liquid fertilizers, and most industrial solutions inside its rated specific gravity, provided each chemical is first checked against a polyethylene compatibility chart. No fuels, solvents, or flammables should go in; keep it as a dedicated chemical-storage vessel rather than a water tank.
Does this tank come with a warranty?
Yes — the manufacturer's warranty addresses material and workmanship defects in normal use: factory faults, not overloading, a bad install, chemical attack, or impact. File away your receipt and an installation snapshot for any future claim.
Can I install this tank underground?
No. This above-ground tank's flat wall will not withstand soil loads — bury it and you collapse the vessel and forfeit the warranty. Reach for a ribbed underground tank whenever the storage has to sit below grade.
Buying Considerations
Confirm the wider footprint fits your spot with room to work, that the pad can be brought level even though the tank is forgiving, and that your chemical is compatible with polyethylene before dedicating the tank to it. Have a firm spot ready for the offload.
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