Can you cover a pool with algae in it?

Covering a pool with algae in it can be counterproductive and hinder the process of eliminating the algae. Here's why:

Absence of Sunlight: Algae thrive on sunlight for photosynthesis. Covering the pool blocks sunlight, which can help reduce algae growth. However, it doesn't kill the existing algae. When the pool is uncovered, the algae will likely resume their growth.

Oxygen Deprivation: Covering the pool deprives the water of oxygen, which is crucial for beneficial microorganisms that feed on algae. Without oxygen, these microorganisms cannot thrive, allowing the algae to persist or even multiply.

Chlorine Dissipation: Chlorine is commonly used as a pool sanitizer to kill algae and bacteria. When the pool is covered, the chlorine dissipates more slowly due to reduced sunlight and wind exposure. This slower dissipation can result in chlorine concentration becoming too low to be effective against the algae.

Breeding Ground for Mosquitoes: Stagnant water with algae can attract mosquitoes that breed in such environments. Covering the pool provides an ideal breeding ground for mosquitoes, potentially posing health risks.

The best approach to combat algae in a pool is to:

-Test and adjust the pool water chemistry, particularly pH and chlorine levels.

-Clean the pool regularly to remove debris that can feed the algae.

-Use an algae treatment product specifically formulated to kill and prevent algae growth.

-Keep the pool covered when it's not in use to minimize exposure to sunlight and debris, but consider uncovering it during the day to allow for some sunlight exposure and oxygen exchange.

If the algae bloom is severe or persistent, it may be advisable to consult a pool maintenance professional for further assistance and guidance on effectively treating the pool.