The world’s first truly portable reservoir

by Ofentse Sefolo
The world’s first truly portable reservoir

South Africa enters its summer-rain season in many provinces. If one follows the weather patterns of the past decade, the country will no doubt face heavy rainstorms turning local road infrastructure into rivers, causing havoc for many commuters.

Yet in 2016, South Africa experienced one of the worst droughts in our country’s history. Many regions such as the Northern Cape are still in the grips of this draught, which increases the pressure on an already fragile economy.

To avert a water crisis, we need to find alternative sources for water supply and undoubtably reduce our reliance on conventional water schemes such as dams and reservoirs – even more so in communities where people must walk hundreds of kilometres to their nearest water source.

So, you may ask what the point is of reflecting on the weather patterns in this context.

Well, imagine if the vast majority of South Africa could harvest the stormwater of the ample rainfall run-off in such a way that it could become a sustainable and viable source of water supply?

A study was recently done of the Liesbeek River Catchment in Cape Town by the University of Cape Town’s Department of Civil Engineering. The study found that stormwater harvesting has the potential to reduce the total current residential potable water demand of the catchment by more than 20%, if the stored stormwater is used for purposes like irrigation and toilet flushing.

For such a reduction to take place, many residents would be required to make use of harvested stormwater. This would likely necessitate changes to the regulations related to the supply of water in the city.

But where would such a viable solution be found?
An intrepid team with a background in civil engineering, construction and product design has harnessed their collective expertise to form a new company called Nkunzi Modular Liquid Storage Solutions, which is dedicated to the development of specialist solutions to address the wider need of bulk water storage.

You may say that this is nothing new. But Nkunzi’s Manufacturing’s solution is vastly different. Their system offers a unique and completely customisable layout solution which, thanks to its simplified installation methods, offers unrivalled delivery and storage options.

By installing modular tanks, reservoirs are created to harvest huge quantities of stormwater for future use. Nkunzi has genuinely designed the world’s first modular large-scale liquid storage solution, known as The RainBox®.

The company has a vested interest in stormwater harvesting. Their offerings are largely plastic containers meant for bulk water storage in a set of large modular, reinforced plastic tanks to be stacked and joined to form water storage facilities.

The company was founded on the three core principles of:
1. Modularity.
2. Mobility.
3. Adaptiveness.

The RainBox explained
Nkunzi’s The RainBox® is a uniquely designed tank, functional for both long- and short-term storage requirements. The tanks can be arranged or packed against one another from any angle and connected via pipe fittings suitable for flat surfaces, allowing liquid to flow freely from one tank to another. Thereby it is creating a single body of liquid throughout the modular arrangement, creating an emergency reservoir, which can now be deployed in a fraction of the time with minimal cost.

Shown here is a simple arrangement of three tank units. These arrangements can be adapted to suit almost any environment and can be stacked vertically via standard shipping containers (20ft). A RainBox arrangement acts as a modular bulk water storage facility.

Bring a solution to multiple industries
The Nkunzi team has created an affordable, portable and sustainable solution to address the water supply challenges, where water can now be harvested, stored and filtered for cattle, school toilets or even vegetable gardens.

With rainwater harvesting, tanks can now be installed around buildings where space is limited, or even stacked on top of each other if more capacity is required.

Ingeniously this application could also be used to store water for firefighting requirements on top, underneath (basements) or around buildings, which is optimising the available space for water storage.

Adaptable and varied solutions
The RainBox is adaptable to any commercial environment and able to provide solutions for the agricultural, mining and human aid sectors by:
• Clean, uncontaminated bulk water storage with no evaporation creates massive water and cost savings in agriculture.
• The mobility of the RainBox units ensures massive cost reductions, with bulk water storage in mining.
• Quick deployment and secure installation can provide a clean and abundant source of water to communities in need or during an environmental crisis.

The tanks can be transported by train, road or ship if required. The installation and handling of the populated containers are minimal and rural areas can easily be reached via existing channels. By installing the modular tanks, reservoirs are created to harvest huge quantities of stormwater for future use.

In a country where there is a dire need for entrepreneurial spirit to be put to work for the improvement of our people, communities and country in general, it seems the team from Nkunzi Manufacturing has unlocked a quick, effective and economical solution to South Africa’s large-scale water storage and deployment problems.

For more information, contact info@nkunzimanufacturing.co.za.

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