10 % discount on the price of your tank. Offer valid from 1 May 2024 to 30 June 2024

📌 Please note that the 10% discount is applicable to the tank price only and does not apply to installation, transport, or fittings.

About US

Water Storage Tank Suppliers

Rainbow Reservoirs is a manufacturer and supplier of Aluzinc® sectional steel, bolted-panel tanks throughout Africa and beyond. Our water and liquid storage tanks are used widely across the continent by satisfied customers in the industrial, agriculture, mining, commercial, food-processing, domestic, rural and fire-fighting sectors, to name a few…

At Rainbow Reservoirs, we do not believe in skill dilution or casting the widest net. Instead, we believe that superior quality, total attention to detail, exemplary service and supreme expertise can only be properly attained by dedicated commitment to a specific range of the highest quality Aluzinc® sectional steel, water tanks available.

Since it was established in 2003, Rainbow Reservoirs has had an alliance with Heritage Tanks (Pty) Ltd, Australia – experts in the field of steel water reservoir production and suppliers of modular steel reservoirs throughout Australia and other parts of the world. Due to the scarcity of water resources on their continent, Australian authorities stringently regulate the quality of water storage facilities on offer to Australian users. Consequently, Rainbow Reservoirs liquid storage systems comply with exacting Australian standards, and the highest national and international standards applicable to water storage systems in this category.

Rainbow Reservoirs is committed to the preservation of our precious water resources. Water is crucial for life on earth! Access to water is the one of the most pressing issues of the 21st century. With exploding population growth and rapidly growing economies in Africa, it is crucial that we as a continent develop a strong ethic towards water conservation and water storage. It is ironic that we consider it important to conserve all manner of things such as wildlife, natural places and even buildings, yet conserving water is at the bottom of our conservation-priorities list… this in spite of the fact that we are on the brink of a global water crisis.

With a proud record of faultless installations throughout Africa, our tried and tested products and innovative water tank designs continue to bolster our reputation as a respected brand in the International Water Storage Solutions industry.

Premium quality water storage tanks in Africa

Due an ever-increasing demand for scarce water resources, a greater sense of responsibility towards rainwater harvesting and water conservation is driving the mounting necessity for cost effective water storage tanks and reservoirs so that this life-essential resource may be configured for future use. Rainbow Reservoirs not only provides certified, durable solutions that are reliable and maintenance free, but more importantly, our reservoirs provide long-lasting, “peace-of-mind’ when it comes to liquid or water storage.

As water storage tank suppliers and manufacturers, every component of our water tanks is meticulously sourced and inspected to ensure top quality before installation. Our highly experienced and professional assembly teams are a ‘get-it-right-the-first-time’ gang. They take immense pride in their quality of workmanship and comply with the Occupational Health and Safety Act, Act 85 of 1993.


We are committed to achieving the highest standards of professionalism in terms of labour, health and safety, quality control and business practise. We actively pursue formal qualifications/certifications via recognised organizations empowered to assess the worthiness of our products, services or abilities and to grant appropriate certifications for the same.

Rainbow Reservoirs is a member of the Fire Protection Association of South Africa and an ASIB (Automated Sprinkler Inspection Bureau) accredited supplier of fire-fighting tanks, sprinkler and fire hydrant tanks.

Rainbow Reservoirs is export registered: SADC Certificates of Origin, EU, EFTA, AGOA… 

The preferred water storage tank solution – Rainbow Tanks

Click to learn more about our ASIB approved steel Fire-Fighting Tanks
Click to learn more about Desalination tanks