Pool insulation balls on koi carp pond

Self-filling Balls

Self-Filling Cover Balls™ – Advanced Hybrid Shade Ball Technology

self_filling_shade_ball

The Next Generation of Surface Protection and Bird Deterrence

Euro-Matic proudly introduces the world’s first Self-Filling Cover Ball™—a patented innovation that revolutionizes traditional shade ball technology. Unlike conventional water-filled or air-filled balls, our hybrid design is supplied empty and intelligently self-fills with water upon deployment. This creates a stable, partially submerged ball without the logistics and transport costs of pre-filled alternatives.

How It Works

Each Self-Filling Ball™ features a unique 2-piece construction:

  • One side contains a permanently sealed air chamber.
  • The other side includes a vented chamber that allows water to enter when deployed on a liquid surface.

Once the Self-filling Balls are placed on a water or liquid surface, the balls automatically settle to half their diameter, creating a tightly packed, floating layer that adapts with the surface level.

Ideal for Covering:

  • Wastewater treatment ponds
  • Slurry lagoons
  • Biomass and industrial tanks
  • Chemical and hazardous liquid surfaces
  • Fish and koi ponds
  • Heated or chilled open tanks
  • Airport stormwater basins (for bird deterrence and camouflage)

Key Benefits

Reduces evaporation by up to 90%
Minimizes ice formation by up to 10°C
Cuts heating costs by up to 75%
Resists wind speeds over 147 km/h (48 m/s)
Self-adjusting with liquid levels
Quick, tool-free installation
Reusable, maintenance-free solution
10+ years life expectancy
Up to 80% lighter than traditional water-filled balls—significantly cheaper to ship

Under Self-filling

Technical Specifications

  • Material: UV-stabilised High-Density Polyethylene (HDPE)
  • Colours: Natural or Black
  • Ball Diameter: 100 mm (4″)
  • Surface Coverage: Approx. 116 balls per m²
  • Filling Mechanism: Self-filling via vented chamber, allowing partial water fill for added weight and stability

 

A Smarter Way to Protect Open Surfaces

Whether you’re looking to deter birds near airports, reduce water loss in reservoirs, or stabilise temperature-sensitive tanks, the Self-Filling Cover Ball™ offers unmatched efficiency, long-term durability, sustainability, and measurable operational savings. It combines the lightweight handling of air-filled balls with the performance of water-filled solutions—automatically adapting to your application on-site.