General info


Advantages of corrugated steel reservoirs:


  • Cost effective Water storage solution.
  • Minimum Site preparation needed.
  • Moveable.
  • Available in various sizes – see pricing tab.
  • Easy to assemble.
  • Can be transported by bakkie or trailer.
  • Can be assembled in remote and inaccessible areas.
  • Can withstand soil movement better than a concrete reservoir.


Corrugated steel reservoirs are commonly used in agriculture and mining as they offer a strong and simple solution to water storage.




As we are confident about the durability and quality of every reservoir we sell, we provide a 5 year guarantee on the Liner and the steel structure. Contact us for a copy of the guarantee certificate and the terms and conditions of sale.

Corrugated steel:

0.8mm thick, galvanised (Z275). Standard panel length 3.44m. Overlap between panels 300mm for extra strength. Panels curved to required radius and predrilled with vertical bolt holes.


We use 10mm Galvanized bolts with flange nuts. 22 bolts per vertical seam.


Reinforced PVC Liner with double welded seams.

100% locally made in SA for SA- no imported materials

Excellent UV Resistance with 5 year Guarantee on liner

550 gram per square metre (this is the amount of PVC per square meter on the reinforced backing).

The liner is folded over the corrugated wall and secured by 5mm cable and turnbuckle. Alternatively the liner can be secured on the inside of the reservoir with a plastic strip and bolts.


Two 40mm outlets supplied. Larger outlets can be supplied on request.


covers of 80% shade cloth or PVC can be supplied. On larger diameters a central pole is used to keep the cover tight. The cover is secured to hooks on the corrugated wall with rope.


The area underneath the tank needs to be stable, smooth and level (it need not be concrete). For larger tanks a concrete ring beam with a sand base is recommended. See specifications tab for more detail. Once the corrugated ring is assembled 50mm of clean sand should be spread inside to provide a smooth surface for the liner.



Delivery and assembly can be arranged from Cape Town and Johannesburg. ( Excludes site preparation and levelling, plumbing and filling).

We provide instructions for DIY assembly.

The corrugated panels are bolted together and the PVC liner placed inside. Assembly can normally be completed in one day (excluding site preparation and levelling).



In windy sites the reservoir can be damaged by wind when empty. Reservoirs should be filled immediately on completing assembly and should never be emptied completely. Alternatively the reservoir can be secured to a ring beam.



Prices are ex-factory  Stellenbosch & Johannesburg. Include corrugated steel, pvc liner, nuts and bolts and one 40mm outlet. We are not VAT registered.

Using 0.8mm thick galvanised corrugated steel, we can supply  reservoirs up to 200 000 litres.

Please contact us for prices on other sizes or dimensions


DIAMETER HEIGHT VOLUME- to brim of reservoir PRICE
3 M 1.5M 10 000 l R 8 250,00
4 M 1.5M 19 000 l R 12 100,00
5 M 1.5M 30 000 l R 13 090,00
6 M 1.5M 43 000 l R 15 950,00
7 M 1.5M 59 000 l R 18 645,00
8 M 1.5M 77 000 l R 22 330,00
9 M 1.5M 98 000 l R 26 125,00
10 M 1.5M 121 000 l R 27 500,00


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Rainqueen Tanks