Square Water Tank for Residential & Commercial Storage | STARK

STARK square water tanks are the ideal solution for efficient space-saving water storage. Available in all standard and custom capacities from 200L to 50,000L, our tanks are fabricated from high-grade SUS304 or SUS316L stainless steel and built for long-lasting durability.

Whether you need a 500L square tank for household use or a 2000L stainless steel tank for industrial systems, we offer fully customizable sizes, inlet/outlet ports, and support structures. Our square design maximizes volume in compact spaces and is especially popular across Australia, India, and the United States.

STARK square stainless steel water tanks offer a modern, space-optimized solution for clean water storage. Their rectangular geometry makes them especially effective for installation in tight locations—along walls, inside mechanical rooms, or on rooftops—where round tanks would waste valuable area. Available in a wide range of capacities from 200L to 50,000L, our square tanks support residential, commercial, industrial, and public utility applications.

Fabricated from corrosion-resistant SUS304 or SUS316L stainless steel, these tanks maintain water purity over time, resistant to microbial growth and rust contamination. The interior is optionally mirror-polished (Ra ≤ 0.6μm) to meet drinking water hygiene standards, while external surfaces can be brushed or painted to match building architecture. For high-salinity or chemically aggressive areas (e.g., coastal or desalination zones), SUS316L is recommended for extended performance.

Compared to traditional round tanks, STARK square tanks offer:

  • Higher space efficiency: square tanks maximize storage volume within a given footprint
  • Stackable or modular configuration: multiple tanks can be arranged in grids or built-in blocks
  • Lower transport cost: flat surfaces allow tighter packaging for shipping, especially in Indian and Australian rural delivery markets
  • Lower visual impact: square tanks blend better into architectural layouts for hotels, villas, and apartment blocks

We support full customization based on usage:

  • 500L – 1000L tanks: Common in household rainwater systems, gardening, and emergency drinking water storage
  • 2000L – 5000L tanks: Used for HVAC systems, small RO units, and rooftop potable water backup
  • 10,000L and above: Suitable for community use in housing societies, schools, and mid-size manufacturing plants

Common upgrades include:

  • Manholes (top or side-mounted) for cleaning and inspection
  • Float valves for water level control and overflow prevention
  • Thermal insulation layer and UV-resistant cover for hot regions like Jaipur or Queensland
  • Wall-mounted brackets or elevated steel platforms to increase water pressure

For government infrastructure projects or commercial bidding packages, we provide full documentation including:

  • 2D/3D CAD layout drawings
  • Welding inspection reports
  • Hydrostatic pressure testing records
  • ISO 9001, CE certification, and material traceability

STARK has successfully delivered stainless steel square tanks to over 15 countries including India, the United States, Australia, the UAE, and Nigeria—serving applications from villa rooftop tanks in Melbourne to hospital utility tanks in New Delhi.

Model / Capacity Dimensions (mm) Material Use Case Remarks
500L Square Water Tank 800 × 800 × 780 SUS304 Household rainwater, gardening Lightweight rooftop installation
1000L Square Water Tank 1000 × 1000 × 1000 SUS304 / Optional SUS316L Residential water storage Most popular model in AU/IN
2000L Square Water Tank 1250 × 1250 × 1280 SUS304 / SUS316L Small industrial systems Thermal insulation available
5000L Square Water Tank 1600 × 1600 × 1950 SUS304 / 316L Commercial buildings, apartments Modular panel assembly
10,000L+ Square Tanks Custom dimensions SUS304 / 316L + optional liners Municipal, hotel, hospital systems On-site installation or flat-pack

General Technical Options

  • Wall Thickness: 1.0 – 2.5mm (varies by size and pressure)
  • Top Access: Manhole (DN400 / DN500) or bolted service hatch
  • Port Configurations: Flanged, threaded, or tri-clamp ports (DN15–DN100)
  • Mounting Options: Ground-anchored feet or elevated frame
  • Finish: Mirror-polished inner surface (Ra ≤ 0.6μm); brushed outer surface
  • Accessories: Float valve, overflow pipe, level gauge, solar top cover
  • Liner (Optional): EPDM / PE for extra chemical resistance

STARK square stainless steel water tanks are trusted by residential homeowners, property developers, facility engineers, and government contractors across India, Australia, and the United States. Their modular shape and customizable capacity make them highly suitable for compact installations and public infrastructure projects alike.

  • Rooftop Rainwater Collection (AU, IN):
    Compact square tanks ranging from 500L to 2000L are commonly used for rooftop harvesting systems in villas, apartments, and bungalows. UV protection and optional overflow kits make them suitable for solar-driven water reuse in Queensland and Jaipur.
  • Community Water Supply & Public Housing (IN, US):
    STARK tanks serve as main storage units for shared water supply in mid-rise housing blocks, gated communities, and rural municipal buildings. The square design enables grid-style installation for equalized distribution.
  • Commercial Buildings & Hotels (AU, US):
    Stainless square tanks are used in basements or on rooftops to provide pressurized domestic water for guest rooms, kitchens, and laundry systems. Optional insulation supports thermal retention for hot water storage.
  • Food & Beverage Industry (US):
    Small-capacity polished square tanks are installed in microbreweries, cafes, and food processing units to hold rinse water, pre-treated water, or ingredients under hygienic conditions.
  • Institutional Infrastructure (IN):
    Schools, hospitals, and local government offices in India use modular square tanks (2000L–10,000L) as firewater reserves or daily supply reservoirs, especially where space is limited or vertical expansion is restricted.
  • Solar Pump Systems & Off-grid Installations (AU, IN):
    Paired with solar pumps and float valves, these tanks form closed-loop water harvesting systems in remote farms, eco-houses, or low-infrastructure regions.
  • Industrial Equipment Buffering (US):
    Square tanks are integrated into HVAC systems, chemical dosing skids, or water-cooled processes in factories and warehouses, where installation next to walls or within compact skids is required.

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