✅ CGS = Corrugated Galvanized Steel Water Tank
A cost-effective, modular, and durable solution for storing water in residential, commercial, industrial, and agricultural applications — especially popular in Africa and emerging markets due to its easy assembly, low cost, and reliability.
It is a common and widely used type of modular water storage tank, especially in Africa, Asia, the Middle East, and rural or developing regions.
- Corrugated steel panels that are coated with a layer of zinc via the hot-dip galvanizing process.
- These panels are then bolted together using rubber gaskets and stainless steel bolts to form a watertight reservoir.
Applications:
- Domestic water storage
- Municipal water supply
- Rainwater harvesting
- Industrial cooling
- Fire protection
- Aquaculture (fish farming)
- Irrigation
🔧 Key Features of CGS Water Tanks
| Feature | Benefit |
|---|---|
| Corrugated Panels | Increased strength and rigidity; resists bulging under water pressure |
| Hot-Dip Galvanized Steel | Zinc coating protects against rust and corrosion; long lifespan (15–25 years) |
| Modular Design | Easy to transport, assemble, and expand; ideal for remote areas |
| Bolted Construction | No welding required; can be installed by local labor |
| Various Sizes | From 5,000 liters to over 1,000,000 liters |
| Compatible with Liners | Often used with PVC/EPDM liners for fish farming or potable water |
🌍 Why Are CGS Tanks Popular? (Especially in Africa & Developing Markets)
- ✅ Affordable – Much cheaper than stainless steel or concrete tanks
- ✅ Easy to Ship – Panels come flat-packed; saves on logistics costs
- ✅ Quick Installation – Can be assembled in days without heavy machinery
- ✅ Durable – Resists weather, UV, and mechanical damage when maintained
- ✅ Scalable – Add more tanks as demand grows
- ✅ Versatile – Used for drinking water, fire safety, agriculture, and aquaculture
💡 On Alibaba, many suppliers list “CGS Water Tanks” when targeting international buyers — it’s a shorthand understood in construction and water infrastructure sectors.
🏗️ Typical Components of a CGS Water Tank
- Galvanized corrugated steel panels (top, side, bottom)
- EPDM or Nitrile rubber gaskets (for sealing)
- Stainless steel bolts, nuts, and washers
- Manhole cover (top and/or side)
- Inlet, outlet, overflow, and drain fittings
- Optional: ladder, walkway, roof, coating, or liner
⚠️ Important Notes
- Galvanized steel ≠ food-grade contact: If storing drinking water or raising fish, ensure the tank has a potable water-safe liner (e.g., PVC or EPDM) to prevent zinc leaching.
- Maintenance: Regular inspection and re-greasing of bolts can extend life.
- Foundation: Must be level and strong (usually reinforced concrete or compacted gravel with beams).
✅ Common Alternative Names
You might also see CGS tanks called:
- Bolted Galvanized Water Tanks
- Modular Steel Water Tanks
- Corrugated Steel Panel Tanks
- HDG Panel Tanks (more technically accurate)
If you’re sourcing or installing a CGS tank, I can help you:
- Choose the right size
- Find reliable suppliers (especially on Alibaba)
- Design the foundation
- Select accessories (valves, liners, ladders)
- Ensure water safety (for drinking or fish farming)
Just let me know your project needs!