How California’s Wildfire Season Affects Pool Water and Filtration Systems

Wildfire season in California isn’t just a concern for forests, air quality, and insurance rates—it also poses a surprising threat to swimming pools. As fires rage across the state, ash and smoke travel far beyond the flames, silently infiltrating backyard oases from Sacramento to El Dorado Hills.

For pool owners, especially those living near high-risk wildfire zones, understanding how these seasonal events affect water chemistry and filtration systems is key to protecting both your investment and your health.

Why Wildfire Smoke and Ash Matter for Pool Owners

When wildfire smoke fills the air, it's not just a visibility issue. Microscopic particles and ash settle on pool surfaces and seep into filtration systems. According to Aqua-Tech, these pollutants introduce three major challenges:

• Organic Loading: Ash adds organic material to your pool, which rapidly depletes chlorine reserves, increasing the likelihood of cloudy water and algae blooms.

• Phosphate Build-Up: Ash and debris can introduce phosphates—a primary nutrient for algae growth—making pools harder to sanitize.

• Clogged Filters: Fine ash clogs filters and reduces efficiency, sometimes leading to total system failure.

Source: Western Fire Chiefs Association

The Hidden Health Risks in Wildfire Ash

The Pool & Hot Tub Alliance notes that ash may carry chemical residues from burned homes, vehicles, and vegetation. These contaminants can irritate skin, eyes, and airways when not properly filtered or neutralized.

Early Signs Your Pool Is Suffering From Wildfire Effects

Whether or not you live near an active fire, you may begin to notice:

• Cloudy or Green Water: A telltale sign of depleted chlorine and algae bloom

• Strong Chlorine Odor: Often mistaken as a sign of cleanliness, this odor actually points to chloramine build-up and poor sanitation

• Surface Film or Stains: Ash can leave oily films or grey stains on the surface

• Reduced Water Flow: Caused by clogged filters struggling to circulate properly

A helpful Reddit thread on pool care suggests having your water chemistry professionally tested after heavy smoke exposure—especially for phosphate levels and cyanuric acid.

How Wildfire Exposure Damages Pool Equipment

According to Ogden Pools and Executive Blue Pools, excess debris from ash not only overwhelms pool chemistry but accelerates mechanical wear:

• Pump Bearings and Seals: Can be worn down by abrasive particulate matter

• Filters: May require more frequent replacement

• Salt Systems and Heaters: Susceptible to mineral build-up and corrosion from pH swings

Proactive Steps You Can Take

The team at Aqua-Tech recommends the following:

• Test Water Chemistry Frequently: Especially during fire season

• Use Phosphate Removers: Products like Bye-Bye Phos Tabs or Phos Cleanse Plus

• Shock the Pool Weekly: To counteract heavy organic load

• Backwash or Clean Filters Regularly: Especially after windy days or visible ash accumulation

Why Professional Cleaning Is Non-Negotiable

While DIY methods might help in mild cases, wildfire ash introduces chemical and biological variables most pool owners aren’t equipped to handle. Lakeside Pool Service offers deep cleanings that address both water chemistry and mechanical components, ensuring:

• Total ash and particulate removal

• Equipment inspection and maintenance

• Restoration of optimal chemical balance

Conclusion

With California’s wildfire season intensifying due to climate change, pool owners face a growing set of challenges that extend beyond skimming leaves and topping off chlorine. Protect your investment—and your swimmers—by staying proactive during fire season. For homeowners in El Dorado Hills and surrounding communities, Lakeside Pool Service is here to help with expert guidance, chemical balancing, and thorough filter cleaning.

Request a free estimate today to get ahead of wildfire-related damage and ensure your pool stays sparkling and safe all summer long.