25 Gallon Vertical Liquid Storage Tank: Complete Buyer's Guide
25 Gallon Vertical Liquid Storage Tank from Norwesco.
Technical Drawing
Official Norwesco technical drawing — 25 Gallon Vertical Liquid Storage Tank
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
The 25 Gallon Vertical Liquid Storage Tank is the smallest chemical vessel in this group, light enough that a full charge is only a couple hundred pounds, so the install is almost entirely about placement and restraint rather than support. Treat it as a point-of-use chemical tank — close to where the chemical is drawn, mounted securely, and plumbed simply.
Site Preparation
A small level surface is all it needs: a load-rated shelf, a paver, or a flat patch of concrete, shimmed flat so the body stands true. Because a small chemical tank is easy to bump and a tip means a spill, fasten or strap it wherever it could be knocked — restraint matters more than it would for a water tank of the same size.
Placement and Connections
Run the discharge off the lowest fitting with a chemically compatible flexible connector so the tank can shift slightly without straining the bulkhead, and drill a compatible fill bulkhead if your plumbing needs one. Use chemical-rated tubing and hand-tighten every fitting only a quarter turn past snug; the small fittings on a 25-gallon tank are the easiest of all to crack if you reach for a wrench.
Venting
Even a 25-gallon tank must breathe. Leave the lid vent or fill opening open so air moves in and out during draw and refill, and fit a pressure/vacuum relief vent rated to the chemical where it is volatile. A sealed small tank can deform under a brisk pump-down, so keep the relief path open.
Maintenance and Long-Term Care
A 25-gallon chemical tank is the simplest vessel here to maintain — small enough to inspect, drain, and decontaminate in minutes. Maintenance is chemical-tank work, not potable, centered on a secure mount, compatible fittings, a clear vent, and proper cleaning between products.
Quarterly Inspection Checklist
- Quick visual: Glance over the whole body for swelling, cracking, or weeping at the fitting; every surface is visible at this size.
- Fitting check: Hand-snug the outlet and any bulkhead, taking extra care since the small poly fittings over-torque easily.
- Mount check: Confirm the shelf or pad is sound and the light tank is still securely restrained against tipping.
- Vent and opening: Check the vent or fill opening is clear and that any pressure/vacuum relief is rated to the chemical when the chemistry is volatile.
Cleaning
On every product change, decontaminate per the chemical maker's guidance — a small tank still cross-contaminates from leftover residue if you only rinse. Empty the tank at the outlet, run the supplier's flush procedure, and manage the rinse waste responsibly. As a chemical vessel, it must not be turned to potable-water use.
UV and Weather Protection
A 25-gallon tank is trivial to keep out of direct sun — on a shelf indoors, in a shed, or under a roofline — which spares the translucent wall most UV exposure. If it must sit outdoors, check the sun-facing side yearly for chalking and move it into shade, which takes seconds at this weight.
Alternatives and Comparisons
Twenty-five gallons is the smallest chemical reserve here, for point-of-use supply and small-batch work. If you refill it constantly, the 40-, 50-, and 75-gallon verticals hold more without much more floor space. Choose the capacity around your real usage rather than buying too small.
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 25 Gallon Vertical Liquid Storage Tank last?
Kept on a flat, secure support, within its rated density, and properly decontaminated between products, a 25-gallon chemical tank lasts well over a decade — often longer, since it is easy to shield from sun and simple to maintain. Age rarely ends these tanks; an incompatible chemical is the usual culprit.
What chemicals can I store in this tank?
Within its specific-gravity rating it takes agricultural chemicals, liquid fertilizers, and lighter industrial solutions, after each chemical is checked against a polyethylene compatibility chart. Never charge it with fuels, solvents, or flammables. This is a chemical tank, not a vessel for drinking water.
Does this tank come with a warranty?
Yes, it carries the manufacturer's warranty against defects in materials and workmanship under normal use — factory faults only, not chemical attack, a tip, or other misuse. Hold on to the receipt to support any claim you might file.
Can I install this tank underground?
No. Even at 25 gallons this is an above-ground tank with a wall not built for soil pressure; burying it risks collapse and voids the warranty. Below-grade needs call for a small underground tank engineered to be buried.
Buying Considerations
This is the easiest chemical tank to site: confirm a small flat surface and a secure mount against tipping, keep it near where the chemical is used, and verify the chemistry against polyethylene before dedicating the tank to it. Its low weight makes relocation effortless.
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