Robust, Reliable and Cost Effective Water Storage

Taking Water Further

The Midi-range fills a gap not covered by typical moulded plastic tanks and would find good application where users need storage between 5,000 and 20,000 litres, often on stands to provide distribution pressure. Structa is particularly excited about this size range as it would find excellent application in schools, clinics and small rural water storage. These tanks are transported in segments and can be assembled on top of stands if required. This eliminates usage of cranes in difficult rural applications. Structa supplies package systems of tanks and stands, ready for assembly, even by the user.


1,000L to 20,000L


Typical Applications

• Household
• Schools
• Farms
• Rural villages
• Industrial
• Clinics
• Agricultural

Material Specification

• Steel sheet:  Galvanised steel Z275
• Liner: Poly-vinyl chloride


• Easy on site erection with crew of 2 to 4, even on elevated stands.
• Ground preparation requires simple levelling and stabilization and a concreteless ring beam foundation is available.



Easily transportable, especially for multiple tanks

Easy of assembly, even at elevated heights


Robust steel tank with high life expectancy

Replaceable liner allows for extended life


Design and Testing

Design and Testing

The tank has been developed following the rigorous methods used in industrial tank design. Bolted joints have been subjected to laboratory testing and the shell structure analysed using state of the art finite element analysis.

Design conforms to SANS 10160, 10162, 121 and API650 (5.2.1) where applicable.

Specialized Development

Expert tank design

laboratory tested

Finite Element analysed structure


CONFORMS TO SANS 10160, 10162 & API 650 (5.2.1)


Capacity Table (litres)


This range offers the user easily transportable, quick erecting tanks in the range 1,000 litres up to 20,000 litres.

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