Category: Water tanks

Water Tanks are specialized containers used for the collection and storage of water for a vast range of applications, including domestic backup, industrial processing, and agricultural irrigation. While traditional storage options like plastic (polyethylene) or concrete are common, high-capacity and long-term water security are best achieved through bolted steel water tanks.

In the African context, Rainbow Tanks has redefined the water storage landscape. By utilizing Aluzinc® steel instead of standard galvanizing, Rainbow Tanks offers a solution that is specifically engineered to withstand extreme UV exposure, high temperatures, and corrosive environments, ensuring a constant and safe water supply where municipal infrastructure may fail.

Comparison of Tank Materials

Why Steel is Superior for Water Security

• Structural Integrity: Steel tanks do not “bow” or burst under high pressure. Their bolted design allows them to handle massive volumes of water that would cause plastic tanks to fail.

• Hygienic Storage: Rainbow Tanks uses heavy-duty, food-grade internal liners. This ensures the water never touches the steel, preventing the “metallic” taste often associated with older galvanized tanks and eliminating the risk of internal rust.

• Fire Safety: Steel is non-combustible. In fire-prone areas or for dedicated ASIB fire-sprinkler reservoirs, steel tanks are the only reliable choice, as plastic tanks will melt when exposed to heat.

• Heat Management: The Aluzinc coating reflects sunlight, keeping the stored water cooler than dark-colored plastic tanks. Cooler water is less prone to bacterial and algae growth.

Core Applications

• Domestic & Residential: Providing “water-shedding” backup for homes and housing estates, ensuring taps stay running during municipal outages.

• Industrial & Mining: High-capacity storage for process water, dust suppression, and chemical effluent in remote or harsh locations.

• ASIB Fire Protection: Rainbow Tanks are a preferred supplier for ASIB-approved fire tanks, vital for commercial buildings and warehouses.

• Agriculture: Large-scale reservoirs for irrigation and livestock that can be assembled on-site without the need for heavy machinery or concrete ring-beams (for tanks under 350kL).

The Rainbow Tanks “Modular” Advantage

Because these tanks are bolted and sectional, they can be flat-packed and shipped on standard transport. This allows for massive reservoirs to be installed in places where access is restricted—such as basements, narrow alleys, or deep rural farming sites—where a pre-made tank of the same size could never be delivered.

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