All Episodes — Year 1 · April 2026–March 2027
EP 01
Why Pool Care Is a Science Problem
April 21, 2026 17 min Solo

John got a call from another pool guy who was in way over his head. What he found when he walked into that equipment room is the single best argument for why pool care needs to be treated as a science — not a trade skill passed down by feel and guesswork. This is the episode that explains why Pools Scientific exists, what’s fundamentally broken about the way pool care is practiced, and what it actually costs when the science gets ignored. Listen before you touch your pool chemistry again.

What You’ll Learn

Why pool water is a chemical system — not a simple maintenance checklist — and what happens when you treat it like one.
The single most important number in pool chemistry that most owners and many professionals never calculate — and what it’s silently doing to pools right now.
Why your chlorine level may look fine on a test strip while doing almost nothing to actually sanitize the water.
What this podcast is, who it’s built for, and why there’s nothing else like it in the pool industry.

Ready to go deeper? Volume 1 of the Pools Scientific ebook series covers the fundamentals introduced in this episode — the chemistry your pool store never taught you.

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EP 02
The 7.5% Rule — The Most Important Number You’ve Never Heard Of
April 28, 2026 24 min Solo

Your pool tests fine for chlorine. The strip says you’re good. So why does it feel like the water isn’t quite right — or worse, why is it growing algae when the numbers look acceptable? The answer is something most pool owners have never heard of, and once you understand it, you’ll never look at a chlorine test the same way again. This episode covers the most important number in outdoor pool chemistry — and why ignoring it means your sanitizer may not be doing what you think it is.

What You’ll Learn

What cyanuric acid actually does in your pool — and the hidden tradeoff that comes with it that nobody at the pool store tells you about.
The 7.5% Rule — the mathematical relationship between CYA and free chlorine that determines whether your sanitizer is actually working.
Why the most popular chlorine tablets quietly accumulate a chemical byproduct that can render your sanitizer nearly ineffective — and what the Pools Scientific approach does instead.
When to take action — and what that action looks like — when your CYA has climbed too high to manage effectively.
Why salt pool owners who manage CYA differently are getting better results with less chemical input — and the real-world data behind it.

The 7.5% Rule reference table — every CYA level and its minimum FC requirement — is in Volume 2 of the Pools Scientific ebook series.

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EP 03
LSI Explained: The Langelier Saturation Index Without the Math Headache
May 5, 2026 30 min Solo

John gets calls constantly from pool owners with expensive damage — etched plaster, failed heaters, crumbling grout — on pools that looked perfectly fine. Crystal clear water. Chemistry that tested “in range.” No algae, no cloudiness, no warning signs whatsoever. And every single time, the cause is the same thing. This episode introduces the one number that tells you whether your water is quietly destroying your pool right now — and how five variables you can test and adjust are either working for you or against you.

What You’ll Learn

Why a pool can look perfect while silently causing thousands of dollars in damage — and what clear water actually does and doesn’t tell you.
What the Langelier Saturation Index is, what it measures, and why it’s the most important number most pool owners have never calculated.
The five variables that determine water balance — and which one is your most powerful lever for getting it right fast.
The difference between what corrosive water and scale-forming water do to your equipment, surfaces, and budget over time.
Why salt pool owners need to pay even closer attention to this number — and what it has to do with how long their cell lasts.

Volume 2 of the Pools Scientific ebook series covers the full LSI formula, worked examples, and the complete water balance framework in mathematical depth.

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EP 04
Salt Chlorine Generators: Science, Myths, and Maintenance
May 12, 2026 33 min Solo

The biggest lie in the residential pool industry is printed on manufacturer brochures, repeated by pool store salespeople, and believed by millions of pool owners making purchasing decisions right now. John has seen the damage it causes firsthand — across nearly 300 active pools and thousands throughout a career. This episode dismantles that myth completely, explains what’s actually happening inside a salt chlorine generator at the chemistry level, and gives you the real maintenance framework that protects your investment. If you own a salt pool, this episode may be the most useful 33 minutes you spend this season.

What You’ll Learn

The most damaging myth about salt pools — why it’s wrong, why it persists, and what it’s quietly costing owners who believe it.
What electrolysis actually does at the chemistry level — and what it produces that most salt pool owners don’t know about.
Why salt cells fail years before they should — and the specific, preventable things that kill them early.
The corrosion and safety concerns that every salt pool owner needs to understand before swim season starts.
A complete maintenance framework — salt levels, output settings, cleaning intervals, and water balance targets — drawn from nearly 300 active pools and thousands across a career.

Volume 2 of the Pools Scientific ebook series covers salt pool chemistry, water balance targets, and the complete SWG management framework in depth.

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EP 05
My Pool Guy Is Full of Crap
May 19, 2026 31 min Solo

“My pool guy is full of crap.” It shows up in forums, in Facebook groups, in Reddit threads. And sometimes they’re not wrong. But most of the time the pool guy isn’t the problem. The problem is what he was handed before he ever showed up at your pool. This episode is his defense — five things your pool guy is most likely getting wrong right now, not because he’s cutting corners, but because nobody in the chain ever gave him the reasoning.

The Five Things

Change your sand every two to three years — why filter media failure is a condition-based decision, not a calendar decision, and what enzyme treatment actually does.
Add two pounds of shock per week and you’ll be fine — the difference between prescriptive dosing and chemistry-based dosing, and what it costs to confuse them.
Your CYA is fine up to 100 ppm — the most consequential number the industry got wrong, why it only goes one direction, and why the ceiling is 50.
Bring me a water sample and I’ll get it tested — why on-site testing is the only accurate testing, and what happens to a sample on the way to the store.
High pH is caused by too much alkalinity — the actual mechanism behind rising pH, and why chasing alkalinity to fix it is the wrong lever.

Ready to understand your pool chemistry? The Pools Scientific ebook series gives every pool owner the science foundation this episode is built on.

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EP 06
The pH Ceiling — Why Your pH Keeps Rising and What to Do About It
May 26, 2026 20 min Solo

You add pH reducer. It comes down. A few days later it’s high again. You add more. It comes back. Every season. The same cycle. Most pool owners assume this is just how pools work. It isn’t. pH rises for specific chemical reasons — and understanding those reasons changes everything about how you manage it. This episode covers the two primary mechanisms behind pH rise, why salt pools are especially vulnerable, and the practical management approach that actually works.

What You’ll Learn

The chemistry behind why pool pH rises continuously — including the specific mechanism that affects salt pools that nobody talks about.
Why high pH is a sanitization problem, not just a comfort problem — and the exact numbers that show how dramatically chlorine effectiveness drops as pH climbs.
Why the acid you choose matters — and why one common pH reducer creates a long-term problem that most pool owners don’t know about until it’s expensive.
The alkalinity targets that make pH easier to manage — including the specific number that’s different for salt pools and why.
Why borates at 50 ppm are one of the most underused tools in residential pool chemistry — and what they actually do for pH stability.

Volume 2 of the Pools Scientific ebook series covers pH, alkalinity, and the full water balance framework in complete mathematical depth.

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EP 07
I Saw It on TikTok
June 2, 2026 25 min Solo

Pool advice on social media travels faster than ever. A confident presenter, a clear pool, and a before-and-after format is all it takes to reach a million people — regardless of whether the chemistry holds up. Some of it is accurate. A significant amount is not. And the consequences of following bad chemistry advice show up in your water, on your surfaces, and eventually in your wallet. This episode gives you a framework for evaluating what you see before you try it in your pool.

What You’ll Learn

Why social media pool advice is so persuasive even when it’s wrong — and the three specific patterns that make bad chemistry look credible.
The three questions to ask about any pool advice before you act on it — questions that will save you from the most common and most expensive mistakes.
Why advice that addresses symptoms without explaining causes will always produce temporary results and recurring problems.
What a chemistry foundation actually looks like — and why having one changes every piece of pool advice you’ll ever encounter from this point forward.
A first look at something John has been building alongside the podcast — for the people who want more than a Tuesday episode can give.

Something is coming. John has been building a chemistry subscription for pool owners who want a real answer for their specific pool — not a general answer for everyone. More on Episode 8.

New Episodes Every Tuesday

52 episodes planned for Year 1 — April 2026 through March 2027. Subscribe to the email list to get notified every time a new episode drops.