Why Is My Pool Cloudy?
What Causes Cloudy Pool Water?
Cloudiness is usually caused by one or more imbalances in your pool’s ecosystem. Here are the most common culprits:
1. Poor Filtration or Circulation
If your filter is clogged, undersized, or running for too short a cycle, it can’t keep up with particle removal. Still water also allows contaminants to settle and multiply, especially in dead spots.
2. Unbalanced Water Chemistry
Cloudiness is often tied to:
- High pH or total alkalinity
- Low chlorine levels
- High calcium hardness
When water chemistry is off, it disrupts sanitization and can cause scaling or particle buildup.
3. Environmental Debris
Dust, pollen, and organic matter—especially after storms or nearby landscaping—can overwhelm your filter and create a cloudy appearance almost overnight.
4. Algae Bloom in Early Stages
Before algae turns green, it can create a dull, hazy effect. This is especially common in pools that haven’t been shocked or sanitized regularly.
5. Swimmer Load & Contaminants
Heavy use, sunscreens, and body oils introduce fine particles that remain suspended in the water if not properly treated or filtered.
Why It Matters
Cloudy water isn’t just cosmetic. It can:
- Harbor bacteria or pathogens
- Obscure visibility and create safety hazards
- Corrode equipment over time
- Lead to longer-term chemical imbalances or algae growth
Left untreated, a cloudy pool can turn into a green pool—and a green pool can require costly, time-consuming restoration.
How Heritage Pools Can Help
We’ve seen every cause and combination—and solved them all. Our technicians take a comprehensive approach:
- Full water chemistry diagnostics
- Filter inspections and flow rate assessments
- System runtime optimization
- Flocculant or clarifier treatment when necessary
- Filter media replacement or upgrades
Whether you own a Concrete Pool, Fiberglass Pool, or I-Beam Pool, our team brings the tools and expertise to restore crystal clarity, fast.
