E-Vap Caps

E-Vap Cap is a specialized patented floating evaporation cover made from light impervious polyethylene protecting water from water storage areas. The black bubble underside provides flotation and stops light penetration, while the white upper surface deflects the heat from the sun. Both layers are UV stabilized and designed to reduce evaporation to an absolute minimum.

Our supplier’s unique 'on the water' installation means you do not need to empty your dam and can cover when at capacity, allowing water saving benefits from day one.

With a 5 year warranty, the E-Vap Cap evaporation cover ensures:

  • Up to 95% reduction of evaporation
  • Reduction of algae growth
  • Improved water quality
  • Full retention of rainfall
  • Reduction of salt build up


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