7 Oct 2026 · 55 min
What Have We Learned? (w/ Jarred Morgan)
Jarred makes his return to the co-host mic, as we talk about the changes in the industry and what we've learned since starting Rule Your Pool.
Podcast · Tech & Science
Rule Your Pool
by Eric Knight · English · Tech & Science
Rule Your Pool is a podcast by Orenda Technologies. This show was created for pool owners, operators, and service pros who want the best water quality possible. If you want to know what's really going on with your swimming pool chemistry, this might be the podcast for you. Each week, we'll cover a n
- New episodes
- Every two weeks
- Typical length
- 26 min
- Latest
- 7 Oct 2026
- Language
- English
Latest episode
Earlier episodes 29 most recent
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E199 · 23 Sep 2026 · 18 min
Water in its Natural State
Eric is going to debate chemistry with Rudy, the host of the Talking Pools Podcast. Submit your questions and topics! In this episode, Eric goes through four tested samples of natural water from the Atlantic Ocean, a lake, and two ponds. All have different chemistry, but all equal 0.00 LSI. Water ALWAYS returns to its natural state.
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E198 · 26 Aug 2026 · 13 min
Soda Ash vs. Sodium Bicarbonate for Raising Alkalinity
Eric reads an article from onBalance by Kim Skinner, explaining the math for dosing soda ash vs. sodium bicarbonate to raise total alkalinity, and why alkalinity is measured in ppm of Calcium Carbonate.
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E197 · 19 Aug 2026 · 26 min
White Water Mold and Disappearing CYA (w/ John Davidson)
Reports of disappearing CYA in pools with White Water Mold got Eric's attention, and it sent him down a rabbit hole. John Davidson of 5-Star Pool & Spa in Billings MT joins the show to discuss this strange phenomenon.
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E196 · 5 Aug 2026 · 23 min
I've joined Pool Brain. Here's Why.
Eric explains why he has decided to step down as Executive Director of Watershape University, and move to Pool Brain as their Head of Education Technology.
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E195 · 29 Jul 2026 · 46 min
Understanding Parasites (w/ Roy Vore, Ph.D.)
Eric survived the Cyclospora Parasite, and invited Dr. Roy Vore, a microbiologist, to educate us on parasites (including cryptosporidium) and why they are so hard to kill.
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E194 · 24 Jun 2026 · 14 min
Why Alkalinity Rises in Pools using CO2 for pH Management
Thanks to numerous questions from listeners (to [email protected]), Eric explains the actual chemistry of why alkalinity rises in pools feeding CO2 for pH management. CO2 itself does not raise alkalinity. Eric shows what's really going on, and what a pool operator can do about this constant rise in total alkalinity.
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E193 · 10 Jun 2026 · 37 min
Pool Chemistry Down Under (w/ David Watson)
David Watson, a 40-year pool industry veteran in Perth, Australia joins the show to discuss his findings about using carbon dioxide for pH management, and some fascinating discoveries about Total Dissolved Solids (TDS). And he may have had something to do with the arbitrary industry-standard limit of "1500 ppm above tap water" for TDS.
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E192 · 3 Jun 2026 · 20 min
Acid Burning Through Alkalinity...and CYA?
What does acid actually do when it's added to water? And since it "burns through" alkalinity, does that include cyanurate alkalinity? Does acid reduce CYA?
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E191 · 20 May 2026 · 1 hr 6 min
Fiberglass Pool Chemistry (w/ Bill Khamis)
Eric is joined by Bill Khamis, the visionary founder of Thursday Pools, a leading fiberglass pool manufacturer in North America. We discuss fiberglass pool manufacturing, transportation logistics, installation, and more. The crux of the episode covers water chemistry and a known issue with fiberglass pools that Eric coined the term "chalking" several years ago. Bill and his company have invested heavily over the past 15+ years to understanding and resolving this problem. And the solution is beautifully simple and affordable.
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E190 · 6 May 2026 · 11 min
Is the LSI actually an "Index"?
A listener emailed the old ruleyourpool email address (the new one is [email protected]) and brought up something interesting. He said "Nowhere in your RYP podcasts have I heard you mention that the LSI is not an index. It's a delta between the saturation pH and the current pH. LSI is the difference between the pH you have and the pH your water wants." Let's discuss this.
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E189 · 22 Apr 2026 · 23 min
Service 2211: Essential Water Chemistry is now available on Watershape.org
Eric's 8-hour chemistry course, Service 2211: Essential Water Chemistry by Watershape University is now available online on-demand, at https://watershape.org/courses/online/svc2211-260101-enroll. This episode gives another 20 min teaser of the class.
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E188 · 15 Apr 2026 · 14 min
Water Chemistry vs. Natural Stone
A marble tile line in a pool was etched from the waterline down, which led to Eric researching the composition and geology of marble and other natural stones. Come to find out, most of them are indeed calcium based, and susceptible to acidic damage.
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E187 · 8 Apr 2026 · 53 min
Reverse Osmosis (RO) Filtration (w/ Matt Mueller)
23+ year pool pro Matt Mueller reached out to teach about Reverse Osmosis (RO) filtration for swimming pools. It's far more fascinating than I thought. Matt talks about concepts like density stratification, biofouling and more.
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E186 · 1 Apr 2026 · 3 min
186. NEW COURSE! C4633: Advanced Inflatable Watershape Installation Workshop
NEW COURSE! For years, Watershape University has been focused on concrete pool construction, design and engineering. It's time we finally expand into an underserved market segment in our industry. This new course, C4633: Advanced Inflatable Watershape Installation Workshop, is an eight (8) hour, action-packed workshop where we teach two days worth of valuable information into one.
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E185 · 25 Mar 2026 · 58 min
Allergic to Chlorine? A Microbiology Lesson (w/ Roy Vore, Ph.D.)
Microbiologist and the world's leading recreational water illness expert Dr. Roy Vore joins the podcast to share the truth about chlorine "allergy" symptoms, chloramines, and much more.
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E183 · 11 Mar 2026 · 19 min
AI: My Unsolicited Opinions
Eric shares his opinions about AI technology in a new and surprising way. Hopefully it serves as a wakeup call to learn skills, and embrace technology so it doesn't replace you.
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E182 · 8 Mar 2026 · 9 min
Understanding Adjusted Alkalinity
A pool store printout shows "adjusted alkalinity", but presented as if it's the "real" alkalinity. It is only used for LSI and pH ceiling calculations, not acid dosing. Acid doses are based on TOTAL alkalinity, because cyanurate and borate contribute to the TA, and acid will neutralize on them too.
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E181 · 25 Feb 2026 · 30 min
Swim School Chemistry (w/ Olympian Davis Tarwater)
2012 Olympic Gold Medalist swimmer Davis Tarwater joins the show to talk about how Orenda chemistry and alkalinity management fundamentally changed the water quality in his swim schools. It's a different way of thinking, and the results are undeniable.
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E180 · 29 Jan 2026 · 36 min
Dad Mode: Unlocked
A first-time father, Eric reflects on this new chapter in his life, updates the audience on WU classes and the Service education track, and gives a 15-min taste of the 8-hour water chemistry course, Service 2211: Essential Water Chemistry.
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E179 · 26 Dec 2025 · 1 hr 14 min
Winterizing Pools Against Crystals (w/ Rob Romano and Bill Drakeley)
Rob Romano and Bill Drakeley join the show to talk about winterizing concrete pools, and the issues with calcium crystals they have seen. Is it water chemistry, or workmanship? Or both?
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E178 · 17 Dec 2025 · 26 min
Protecting Pool Plaster (w/ Jeff Smith)
Eric is joined by Jeff Smith, President of Alan Smith Pool Plastering in Orange, California to talk about their Service Pro Appreciation Day on March 7, 2026.
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E177 · 12 Dec 2025 · 34 min
Reinforced PVC Membranes (w/ Tony Jordan and Jeremy Heersink)
Jeremy Heersink (from Poolside by CGT) and Tony Jordan (from Renolit) join the show to introduce a fourth category of pool type: the Reinforced PVC Membrane. They will be teaching C3291 in Atlantic City for four hours, for a hands-on introduction workshop to the material and how it is installed.
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E176 · 26 Nov 2025 · 40 min
Essential Pool Equipment Taught by the Masters (w/ Rocco Russo)
Rocco Russo, national trainer from Fluidra (Jandy, Polaris, Zodiac, etc.) to talk about the creation of the new Watershape University course, Service 1311: Essential Pool Equipment - The Core Four.
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E175 · 14 Nov 2025 · 26 min
Tile Mastery (w/ Jimmy Reed)
Jimmy Reed (founder of Rock Solid Tile) joins the show to talk about the artistry and mastery of advanced tile work, and talks about what to expect in the C2611 Essential Tile Workshop we're offering at the Watershape University Education Vacation on December 5-6 in Phoenix.
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E174 · 12 Nov 2025 · 36 min
Hands-on Plastering Education (w/ Jon Temple)
Jon and Johan Temple, from Tempool, Inc. join the show to talk about the state of the pool plastering industry, best practices, and why hands-on education is so important.
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E173 · 29 Oct 2025 · 49 min
Shotcrete Science (w/ Charles Hanskat, P.E.)
Charles Hanskat, P.E., the Executive Director of the American Shotcrete Association (ASA) joins the show to discuss shotcrete and what should be expected when constructing a concrete pool shell.
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E172 · 1 Oct 2025 · 45 min
Social Kick (w/ Bryan Lundquist)
Eric reconnects with an old swimming teammate from Team Elite, Bryan Lundquist. Bryan hosts the popular podcast "Social Kick", and joins the show to talk swimming, water and air quality, and changing the culture of swimming.
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E171 · 24 Sep 2025 · 25 min
My statement of purpose.
Eric outlines his WHY. His purpose for not only creating this podcast, but for being in the industry in the first place.
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E170 · 17 Sep 2025 · 24 min
Rebirth.
Eric and Jarred return to reclaim their place among the top 17 swimming pool podcasts.
About Rule Your Pool
Rule Your Pool is a podcast by Orenda Technologies. This show was created for pool owners, operators, and service pros who want the best water quality possible. If you want to know what's really going on with your swimming pool chemistry, this might be the podcast for you. Each week, we'll cover a n
Rule Your Pool is a English tech & science podcast from Eric Knight. Melo plays each episode straight from the publisher's own feed — no ads added, no account needed — and remembers where you stopped, in this browser only.
- Publisher
- Eric Knight
- Language
- English
- Category
- Tech & Science
- New episodes
- Every two weeks
- Typical length
- 26 min
- Latest episode
- 7 Oct 2026
- Feed
- RSS — paste into any podcast app
- Apple Podcasts
- podcasts.apple.com/podcast/id1519290428
- Rights
- 2022 - Orenda Technologies
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