Mesh Reservoirs / Mesh Wall Dams – Cost-Effective DIY Water Storage Systems
📊 View the Mesh Reservoirs capacity & size chart →
We manufacture affordable welded mesh wall water-storage dams that work in agriculture, mining and commercial fish-farming operations, while reducing environmental impact through recycled materials. Various virgin liner options are also available. A fully integrated mesh reservoir includes a geomat and pre-liner, the mesh dam with liner, and a UV shield.
Complete Mesh Reservoir Systems – Two Premium Ranges
| Series | Mesh Type | Best For |
|---|---|---|
| 10 Series (10/12, 10/14) | Galvanised 100 x 100 x 3.2mm welded mesh | Budget-conscious farmers, entry-level aquaculture, irrigation, swimming pools |
| 50 Series (50/12, 50/15, 50/18) | Galvanised 50 x 50 x 3.2mm welded mesh | Commercial fish farms, agriculture, fire reserves, irrigation, road works, building-site water |
Key Specifications
- Diameters: 2m → 9.45m.
- Depths: 1.2m → 1.8m.
- Capacity: 3,400L → 128,000L.
- DIY installation: comes with fully illustrated instructions; erect within a day.
- Factory installation: professional installation team at a fee.
Protection & Longevity – Pre-Liners & Geo Mats
Essential for ground contact and outdoor applications. 320-mic reinforced PVC mesh (recycled/upcycled), providing UV/chafe protection between the mesh/ground and the liner. Standard in the 50 Series; optional for the 10 Series.
Liner Options – Standard Duty
- Upcycled 410 micron or virgin 450 micron PVC standard-duty liners.
- ✅ Best for irrigation & aquaponics.
- ✅ Indoor/covered use.
- ✅ Budget-friendly.
Liner Options – Medium to Extra-Heavy Duty
Virgin 600-micron (medium), 700-micron (heavy) and 800-micron (extra-heavy) liners.
- ✅ Fish farming (tilapia, koi, barbel).
- ✅ Irrigation & aquaponics.
- ✅ Temporary road-works and construction water.
- ✅ Mine-site water.
- ✅ Outdoor durability with greater UV & puncture resistance.
Reservoir Covers
| Type | Benefits |
|---|---|
| Flat sheet 280g PVC mesh | Leaf catcher; blocks UV + debris; perforated net |
| Pitched roof 550g reinforced PVC | Prevents algae growth + evaporation; wall brackets with cables |
| Floating cover 550g reinforced PVC | Prevents algae growth + evaporation; floats on water |
See our Reservoir Covers page for full cover options.
Extra UV Protection
UV Shield – used to protect the liner from UV damage due to fluctuating water levels. Recommended for outdoor applications.
- ✅ 320mic mesh – 70% UV protection to the liner.
- ✅ 450mic liner – 100% UV protection to the liner, plus durable chafe protection.
- ✅ Protects: wall fold-over + top 70cm inside the dam.
- ✅ Welded onto the liner at the factory – no extra installation required.
- ✅ Colour: White.
Why Choose Rainbow’s Mesh Dam Systems?
🌱 Eco-smart manufacturing – recycled PVC options reduce waste without compromising quality.
💰 Unbeatable value – 50% cheaper than concrete/tank alternatives; 5-year warranty on welded mesh and liner.
🔧 Complete kits – welded mesh, geomat/pre-liner, liner, UV shield, outlet fitting, assembly hardware, and illustrated DIY instructions.
Technical Resources
Installation video and instructions available on request.
Request a custom quote.
📞 Call: (+27) 72 562 2658
📧 Email: sales@rainbowtarps.co.za
