In this episode, we dive deep into the science behind swimming pool algaecides—what they are, how they work, and which ones are worth your time and money. Whether you're dealing with green gunk taking over your deep end or just looking to keep your pool looking crystal-clear all season long, understanding these chemicals can give you a serious edge.

We’ll break down the 7 main types of pool algaecides—from quats to copper, polyquats to PHMB—and explain exactly how each one kills or prevents algae. Spoiler alert: not all algaecides are created equal, and more isn’t always better.

If you’re a pool pro or just a pool nerd, this episode will help you level up your chemical game and make smarter choices for your clients or backyard oasis.

In This Episode, You’ll Learn:

• 💧 What quaternary ammonium compounds (quats) are and why they sometimes cause foaming
• 🧪 How polyquats are the non-foaming upgrade to traditional quats
• 🔬 Why copper and silver algaecides kill algae at the cellular level—but come with staining risks
• ⚡ The surprising truth about sodium bromide and how it supercharges chlorine
• 🚫 Why PHMB works without chlorine—and why it can’t play nice with other systems
• ⏱️ How hydrogen peroxide shocks algae into oblivion in chlorine-free setups
• 🎯 Which algaecide to choose depending on whether you're preventing or fighting an outbreak

Who This Episode Is For:

• Pool service techs who want better results without wasting chemicals
• Pool company owners training new hires on chemical treatments
• Homeowners maintaining their own pools who are tired of green surprises
• Anyone who wants to understand why one product works when another fails

In this episode of the Pool School Podcast, Roy "Al G" Free tackles the ever-present challenge of algae growth in swimming pools. Algae, whether it's green, yellow, or black, can quickly turn your pool from a refreshing oasis into a green, slimy swamp. Roy dives into the world of metallic algaecides, specifically copper, silver, and zinc, and explains how these powerful metals work individually and synergistically to prevent and control algae blooms.

Key topics covered include:

1. What are Chelated Metals?
   Roy explains the process of chelation, which involves binding metal ions to molecules to keep them stable and effective in the pool. Chelation ensures that the algaecides remain active longer and reduces the risk of staining pool surfaces.
2. Copper: The Algae Killer
   Learn how copper works to kill algae by causing cell lysis, breaking apart algae cell membranes. Roy also discusses how copper disrupts the Calvin cycle, a crucial part of algae's photosynthesis process, preventing them from producing the energy they need to survive.
3. Silver: The Stealthy Biocide
   Roy delves into silver’s unique method of causing oxidative stress inside algae cells, damaging their internal structures and ultimately leading to cell death. Silver’s ability to weaken algae internally makes it an effective and silent killer.
4. Zinc: The Supportive Player
   Zinc's role is more subtle but no less important. Roy explains how zinc affects algae's ability to metabolize energy and photosynthesize, weakening them and making them more vulnerable to copper and silver.
5. Synergy of Copper, Silver, and Zinc
   When combined, these three metals create a powerhouse algaecide. Roy explains how they work together, each targeting different aspects of algae biology, ensuring a more comprehensive and long-lasting algae control solution.

By the end of the episode, listeners will understand how these metallic algaecides work, why chelation is crucial for their effectiveness, and how to use them together to keep pools clear and algae-free. Whether you're a pool owner or a professional, this episode offers practical insights into using copper, silver, and zinc for algae control.

Key Takeaways:

• Copper, silver, and zinc work together to attack algae on multiple fronts.
• Chelation helps metallic algaecides remain effective for longer without staining.
• By understanding the science behind these metals, pool owners can make smarter decisions to maintain clean, clear water.

Tune in and learn how to keep your pool free from the dreaded green swamp water with the power of metallic algaecides!

In this episode of Pool School Podcast, host Roy "Al G." Free takes a deep dive into one of the most crucial, yet often overlooked, aspects of pool care: the Langelier Saturation Index (LSI). If you've ever wondered why your pool water sometimes feels off, or why scale builds up in your pool equipment, this episode is for you.

Roy breaks down the science of LSI in an easy-to-understand way, explaining how it helps you maintain the perfect balance in your pool water. He’ll cover how LSI can prevent scaling and corrosion, ensuring your pool and equipment stay in top condition.

But LSI isn’t just another pool chemistry term—it’s a game changer when it comes to keeping your water crystal clear and your maintenance costs low. Roy will also discuss how LSI fits into your overall pool care routine, along with the vital roles of pH, total alkalinity, and calcium hardness.

Whether you're a seasoned pool owner or just getting started, this episode will give you the knowledge to fine-tune your pool chemistry and keep your backyard oasis running smoothly. Tune in for an engaging mix of chemistry, practical tips, and a touch of humor to keep things light. You’ll leave this episode feeling more confident in managing your pool and understanding exactly what makes your water tick.