Fixing Algae and Cloudy Water: A Step-by-Step Approach

The most common pool complaints, and how to actually resolve them.

Identify which one you actually have

Cloudy water is often a filtration issue combined with mild chemical imbalance, while green or discolored water is almost always active algae growth — the fix is different for each.

For algae: shock and brush

Shocking the pool with a higher chlorine dose while brushing visible algae off surfaces speeds up recovery significantly compared to shocking alone.

For cloudiness: check your filter first

A dirty or undersized filter struggling to keep up is a common cause of persistent cloudiness even when chemical levels look fine on paper.

Patience matters during recovery

A pool clearing from algae or cloudiness can take a few days of consistent filtration and chemical maintenance — resist the urge to keep adding more chemicals faster than recommended.

When to call a professional instead

Recurring algae problems despite proper treatment, or cloudiness that persists after filter and chemical checks, often point to an equipment issue worth having a professional diagnose.