The Norwesco 5000 Gallon Vertical Water Storage Tank without Fittings in Black (MPN N-40640) is a vertical above-ground water tank designed for whole-house cistern, livestock watering, irrigation buffer, and fire-protection auxiliary supply applications.
Design
- UV-stabilized polyethylene compound rated for direct outdoor sun exposure without coating
- Self-supporting flat-bottom design — no internal bracing, no external support cage required
- FDA-listed resin under 21 CFR 177.1520 for direct potable-water contact
- Translucent natural-color option permits visible fill-level inspection without an external gauge
- One-piece rotomolded construction — no welded seams, no bolted joints (failure paths in steel or fiberglass alternatives)
Installation
Set on a level concrete pad, compacted base ring, or 2x6 wood platform sized at least 6 inches wider than the tank diameter. A filled water column at 5000 gallons exerts approximately 41,700 lb of point load — confirm the supporting structure meets this load case before commissioning. For wind-exposed installations or seismic IBC Risk Category III/IV jurisdictions, anchor the tank with steel strapping to a structural foundation per ASCE 7 Chapter 13 non-structural component anchorage requirements.
Common applications
- Rural homestead and off-grid cabin whole-house potable water buffer
- Low-yield well storage cistern for residences experiencing seasonal drawdown
- Livestock watering supply for cattle, equine, swine, sheep, and goat operations
- Fire-protection auxiliary supply per NFPA 1142 for rural residential and small-commercial sites
- Construction-site water staging for concrete mixing, dust suppression, and equipment wash-down
- Rainwater harvesting downstream of gutter collection systems
Compatibility & compliance
Rotomolded HDPE wall meets ASTM D1998 (Polyethylene Upright Storage Tanks for Storage of Aggressive Chemicals) for non-pressurized atmospheric service. NSF/ANSI 61 listing applies to drinking-water-system components when the OEM model carries the certification mark. Not rated for petroleum products, organic solvents, or liquids of specific gravity above 1.0 unless the tank is explicitly labeled for heavy-duty service.
Shipping
Ships LTL freight from the nearest manufacturing plant. ZIP-specific freight quotes are available through the freight estimator or by phoning 866-418-1777 with MPN N-40640.
