Mythbusters: Pool Chlorine Edition

The Pool Guy Podcast Show

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3d ago 17:54

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Ever wonder why a pool stays clear for months and then collapses in a heatwave despite “weekly shock”? We pull back the curtain on the most persistent pool chemistry myths and replace them with simple, durable rules you can use on every visit. This is a frank guide to working with stabilizer, choosing the right chlorine, and avoiding the subtle traps that turn easy weeks into green emergencies.
We start by dismantling the calendar-based approach to shocking. Chlorine demand isn’t a date on your route sheet; it’s a relationship with cyanuric acid. Using the 7.5% FC-to-CYA guideline, we show how to set smart targets, when breakpoint chlorination makes sense, and how to avoid dumping gallons that don’t move the needle. From there, we explain why trichlor, liquid chlorine, and cal hypo are not interchangeable. Each has a job, a byproduct, and a best-use scenario—understanding that is the difference between controlled, predictable water and chasing problems.
High CYA gets a hard look. Yes, some techs maintain clear water at 150 to 200 ppm CYA, but they pay for it with higher chlorine demand and slower kill rates. We outline practical ways to cap stabilizer—dilution plans, mixed dosing strategies, and seasonal resets—so you’re not stacking tablets all summer. We also revisit the old habit of weekly algaecide and how modern enhancers like borates and phosphate enzyme blends can help without becoming crutches. The priority remains constant: solid FC/CYA targets, clean filtration, good circulation, and consistent brushing.
Finally, we clear up saltwater confusion. A salt pool is a chlorine pool, just with a more consistent delivery system. That steady feed can be a game changer for residential care, but it still lives by the same chemistry: test often, manage CYA, and stay ahead of pH drift. If you’re a homeowner or a service pro, you’ll leave with a cleaner framework for decision-making and fewer chemicals wasted on habit. If this helped you rethink your routine, follow the show, share it with a fellow pool nerd, and leave a quick review so more pros can

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Chapters

1. Welcome And Coaching Invite (00:00:00)

2. The Weekly Shock Myth (00:02:33)

3. Chlorine Levels And CYA Basics (00:05:38)

4. Not All Chlorine Is The Same (00:08:44)

5. High CYA: What Works And What Breaks (00:12:19)

6. Algaecides, Enhancers, And Real Prevention (00:17:19)

1793 episodes

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