Why your pool cage turns green and how to safely clean it

April 21, 2026

If your pool cage in Riverview, Lithia, or Valrico is starting to look green, you’re seeing a very common Florida problem.



That green tint is usually algae and mildew buildup, not just dirt.

Why it happens

Pool cages create an ideal environment for growth because they:

  • trap moisture
  • receive partial sunlight
  • collect pollen and debris



Over time, this leads to buildup on both the screens and the aluminum framing.

Why you should be careful cleaning it

Pool cages are more delicate than driveways or sidewalks.

Using too much pressure can:

  • damage or tear screens
  • loosen framing
  • cause uneven cleaning



We recently worked on a pool cage in Lithia where a previous attempt with a high-pressure washer had caused minor screen damage that needed repair.

  • Green screened-in patio/courtyard beside a hedge and wet lawn, with potted plants and a stone path.

  • Green screened-in patio/courtyard beside a hedge and wet lawn, with potted plants and a stone path.

The right way to clean a pool cage

Safe cleaning typically involves:

  • low-pressure washing
  • proper cleaning solutions
  • even coverage across screens and structure



This removes buildup without damaging the enclosure.

Why it matters

Keeping your pool cage clean helps:

  • maintain visibility and appearance
  • extend the life of materials
  • improve the overall look of your outdoor space 

Final thoughts

If your pool cage is starting to turn green, it’s best to clean it before buildup becomes heavier and harder to remove.



If you’re in Riverview, Lithia, or Valrico and want help or just have questions, feel free to reach out anytime.

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