Custom Engineered Water Storage: Versatile Tank Sizes for Every Space

At Rainbow Reservoirs, we specialize in versatile water storage solutions tailored to your specific site requirements. Unlike standard off-the-shelf options, our tanks are manufactured in an extensive range of Diameter vs. Height configurations.

Whether you are dealing with narrow industrial corridors or height-restricted zones, space limitations are never an obstacle. We custom-build your reservoir to fit your footprint. This specialized engineering has made Rainbow Reservoirs the preferred supplier for basement-tank applications, where maximizing high-capacity storage in confined urban spaces is critical.

The Advantages of Rainbow Premanufactured Steel Tanks

Our modular, bolted steel tanks offer a superior alternative to traditional concrete or plastic storage. By choosing a Rainbow Tank, you invest in a system designed for longevity, compliance, and rapid deployment.

• Premium Corrosion Resistance: We utilize high-performance Aluzinc steel, a specialized coating that offers significantly higher corrosion resistance than standard galvanizing, ensuring your investment withstands harsh South African climates.
• Engineer-Certified Integrity: Every structure is engineer-certified, providing peace of mind for industrial, mining, and fire-safety applications where structural compliance is non-negotiable.
• Potable Water Safety: Our tanks feature food-grade, human-consumption-certified liners. This ensures that stored water remains safe for drinking, food processing, and agricultural use without risk of contamination.
• Global Export & Modular Logistics: Designed for the international market, our tanks are flat-packed and modular. This significantly reduces shipping costs and simplifies transport to remote sites across Africa and beyond.
• Rapid, Economical On-Site Assembly: Forget weeks of construction. Our competency-certified installation teams provide rapid on-site assembly. This modular approach is ideal for remote areas where heavy machinery or concrete mixing is impractical.
• Future-Proof Scalability: Our designs allow for capacity enhancement should your water demands increase, as well as the ability to be fully relocated if your site operations move.
• Low Maintenance & High Durability: Built to be tough and durable, our reservoirs require minimal upkeep over their long lifespan, making them the most cost-effective long-term storage solution on the market.