Zinc Water Tanks – Premium Long-Lasting Water Storage
📊 View the Zinc Water Tanks capacity & size chart →
Rainbow Tarps and Linings have partnered with a leading corrugated-tank manufacturer to deliver South Africa’s most durable zinc water tanks — combining 20+ year lifespans with various liner options to meet the needs of Africa’s agricultural, mining and domestic sectors.
Why Choose Zinc Over Plastic?
- ✅ UV-resistant – won’t crack or become brittle like roto-moulded tanks.
- ✅ Hygienic – prevents algae growth (solid galvanised top).
- ✅ Potable-safe – certified 620-micron liner for human drinking water.
- ✅ Aesthetic – sleek corrugated zinc finish.
💧 “Our zinc tank still looks new after 12 years – our plastic tank cracked in 5!” – Deon, Free State Farmer
1. Potable Water Tanks
- Liner: 620 mic food-grade PVC.
- Use: borehole storage, household drinking water.
- Features: lockable manhole for security, mosquito-proof vent.
2. Rainwater Harvesting Tanks
- Liner: 450 mic standard or 600 mic medium-duty reinforced PVC.
- Use: irrigation, livestock, gardening.
- Features: aesthetically pleasing; leaf filter included for downpipes.
Tank Specifications
| Diameter | Height | Capacity | Best For |
|---|---|---|---|
| 0.66m – 2.2m | 0.8m – 2.7m | 265L – 10,000L | Family homes, smallholdings, schools, farms, mines |
Standard features: 40mm outlet & overflow (larger sizes available); solid galvanised top with inspection manhole; 0.8mm corrugated zinc walls.
Zinc vs Plastic
| Feature | Zinc Tanks | Plastic Tanks |
|---|---|---|
| Lifespan | 20+ years | 5–10 years |
| UV resistance | Unaffected | Brittle over time |
| Temperature range | -10°C to 60°C | -5°C to 50°C |
| Recyclability | Fully recyclable | Fully recyclable |
🌱 Zinc is 100% recyclable at end of life and outlasts plastic tanks 4:1. Withstands hailstorms & extreme temps; animal-proof; access hatch simplifies cleaning.
Invest in Lifetime Water Security!
Our tank experts will guide your selection.
📞 Call: (+27) 72 562 2658
📧 Email: sales@rainbowtarps.co.za






