Eric Knight
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 new topic related to swimming pools, water chemistry, or indoor air quality. With our help, you'll be able to rule your pool without over-treating it with chemicals and wasting money.
Author
Eric Knight
Category
Podcast website
Latest episode
Jun 24, 2026
Where to listen?
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Episodes
Full Transparency - Changes are Coming 12.06.2024 18:13
00:00 - Introduction 02:20 - Updating bicarbonate's pKa from 6.14 to 6.27 08:24 - Orenda app integration with a test kit 08:51 - The new calculator 15:02 - Account login 16:37 - Closing ______________________________ Connect with us! Realize your full potential. Watershape University® Water chemistry questions? Orenda® Questions? Comments? Or apply to sponsor the show: ruleyourpool@gmail.co...
Understanding Cyanurate Alkalinity 05.06.2024 30:30
00:00 - Introduction 05:50 - Does the Orenda Calculator™ adjust alkalinity for CYA? 09:44 - pH buffering system: acids and conjugate bases 12:49 - Hydrogens move around, but don't go away 16:01 - pKa values 19:05 - Cyanuric acid and Cyanurate ion 22:13 - More CYA increases buffering capacity 25:15 - Using chlorine vs. Losing chlorine 28:52 - Closing ______________________________ Connect with us!...
Understanding pH buffering systems and pKa values 22.05.2024 25:35
00:00 - Introduction 03:16 - pH buffering 04:43 - Bicarbonate, cyanurate and borate 06:41 - pH is based on H2O and hydrolysis 09:56 - Carbonate alkalinity means dissolved CO2 determines pH 11:51 - Bicarbonate converts into carbonate at 8.3 pH 13:22 - High TA, more buffering capacity, more acid demand 15:19 - Acids and conjugate bases 18:16 - pKa values and buffering strength 20:52 - What does pKa...
Cicadas (and other small dead animals) in Swimming Pools 08.05.2024 14:45
00:00 - Introduction 02:25 - Cicada broods every 13 or 17 years 05:44 - What do cicadas do? 07:03 - Cicadas and swimming pools 08:56 - What do cicadas introduce into swimming pool water? 10:44 - How to get cicadas out of the pool 11:29 - Other small dead animals in pools 13:02 - Closing ______________________________ Connect with us! Realize your full potential. Watershape University® Water...
Tools for the Modern Pool Pro, with Skimmer + Orenda (w/ Niki Acosta and Jack Nelson) 01.05.2024 31:39
00:00 - Introduction 01:06 - How did Niki and Jack get involved in Skimmer? 06:08 - What's new with Skimmer? 09:56 - State of Pool Service Report 12:38 - Skimmer's Orenda Calculator integration 18:03 - The modern pool pro 20:06 - How does Skimmer want their customers to use this? 22:22 - The LSI quantifies water balance 25:42 - Tracking, Trending, and Forecasting ______________________________ Con...
Scaling Up your Pool Business with PoolBrain + Orenda (w/ Adam Beech) 24.04.2024 29:35
00:00 - Introduction 02:06 - What is PoolBrain? 04:40 - The pains of running a large pool service business 06:48 - A lack of data 09:42 - The power of standardization and checklists 14:43 - Growing vs. Scaling 21:58 - PoolBrain + Orenda Calculator™ integration 25:55 - Closing ______________________________ Connect with us! Realize your full potential. Watershape University® Water chemistry...
The case against column-pouring acid 17.04.2024 10:05
00:00 - Introduction 03:25 - Column-pouring video in Eric's Pool 06:51 - Explanation 08:26 - Wrap up ______________________________ Connect with us! Realize your full potential. Watershape University® Water chemistry questions? Orenda® Questions? Comments? Or apply to sponsor the show: ruleyourpool@gmail.com Facebook: @ruleyourpool YouTube: @rule-your-pool
Self-Serving Pseudo-Science (w/ Terry Arko) 10.04.2024 51:53
00:00 - Introduction 03:13 - Myth 1: ANSI-11 Standards NEVER allow water chemistry outside the ranges 05:12 - Myth 2: It's important to give water what it wants to "make water happy" 10:01 - Myth 3: The pH is constantly increasing outside of the acceptable range stated in Standard 11, and there are no options 14:40 - Myth 4: Water balance indexes indicate whether water is scaling or corrosive to s...
Understanding Oxidation-Reduction Potential (ORP) 15.03.2024 20:47
00:00 - Introduction 01:00 - ORP is a water quality subject 02:39 - Chlorine oxidizes by stealing electrons 04:25 - Why is ORP used in swimming pools? 06:26 - Is ORP measured as conductivity? 07:21 - Factors that affect ORP - pH, CYA, water temperature 08:23 - pH and ORP 11:19 - ORP accuracy is based on fixed pH and chlorine levels 13:22 - Cyanuric acid and ORP 14:24 - Water temperature and ORP 16...
Chlorine's pH impact in swimming pools (w/ Terry Arko) 21.02.2024 35:46
00:00 - Introduction 01:12 - Old habits and beliefs about chlorine and acid 07:04 - Liquid chlorine (sodium hypochlorite) 11:07 - Our bodies produce HOCl too 12:13 - HOCl will become HCl (aka muriatic acid) 16:00 - Cal hypo (calcium hypochlorite) 21:30 - Sodium Dichlor (dichloro-s-triazinetrione) 21:46 - Trichlor (tricoloro-s-triazinetrione) 26:36 - Saltwater chlorine generators (SWG) 30:43 - Chlo...
Is the Orenda Calculator™ true to the LSI formula? Or different? 14.02.2024 25:43
00:00 - Introduction 01:35 - We have learned from past mistakes 04:40 - The history of the Orenda Calculator™ formula 05:51 - Dr. Langelier's original formula = pH - pHs 10:47 - Revisions to the LSI in 1942, 1964, 1965 and beyond 12:32 - Technology is not limited by reference charts 14:29 - The LSI charts today are based on the updates by John Wojtowicz 17:22 - Wojtowicz wrote about the pH Ceiling...
From the booth at the 2024 Northeast Pool & Spa Show 03.02.2024 39:52
00:00 - Introduction 00:16 - Christian Shirilla, River Pools 08:13 - Jarred's amnesia 08:44 - Terry Arko, HASA 14:42 - Jonathan Heller, MikvahTech 24:19 - Kevin Cooley, Goudy Pools 32:36 - Miguel Chavez, Orenda 38:27 - Closing ______________________________ Connect with us! Realize your full potential. Watershape University® Water chemistry questions? Orenda® Questions? Comments? Or apply t...
Unnaturally Natural 10.01.2024 12:50
00:00 - Introduction 00:35 - Water will naturally balance itself 03:34 - Problems above 8.3 pH 04:46 - Chlorine breaks away from CYA at a higher pH 06:24 - Unnaturally Natural 07:56 - Orenda's Four Pillars 09:59 - 2024 learning objectives 11:37 - Closing ------------------------------------ Connect with Orenda Technologies Website: https://www.orendatech.com Help Center: https://ask.orendatech.c...
Chemical product percentages and molar weight ratios 20.12.2023 33:05
00:00 - Introduction 03:48 - Molecular weight 07:30 - Avogadro's Number - the mol 09:28 - Molar weights of pool chlorine products 11:11 - Trichlor percentages 14:52 - Dichlor percentages 17:14 - Calcium hypochlorite percentages 19:36 - Sodium hypochlorite (liquid bleach) percentages 23:03 - The Orenda Calculator™ does these equations for you 25:06 - Chlorine byproducts 27:21 - Wrap up ----------...
Recap of the 2023 Int'l Pool and Spa Show 06.12.2023 23:01
00:00 - Introduction 01:10 - Podcast growth 02:11 - Int'l Pool & Spa Show 05:13 - Watershape University Essential Plaster class (C3611) 09:26 - Pool Nation Awards / HASA Afterparty 14:06 - Honest education remains our top priority 18:06 - Closing out 2023 19:36 - Routing Softwares 21:18 - Closing ------------------------------------ Connect with Orenda Technologies Website: https://www.orendatec...
Top Questions of 2023 15.11.2023 39:56
00:00 - Introduction 03:19 - Can't hold chlorine for a week? 09:05 - Can I maintain a pool at a higher pH? 12:38 - Where can I buy Orenda products? 15:34 - Calcium flakes in salt pools 18:53 - Why does pH keep climbing on a new plaster pool? 22:25 - Fiberglass chalking vs. scale 24:08 - Know your actual water chemistry before calling us 29:37 - Moving forward into 2024 32:04 - Grant's macho interr...
Alkalinity's complicated relationship with chlorine 01.11.2023 19:49
00:00 - Introduction 00:59 - Relationship 1: High alkalinity can lead to chlorine loss via sunlight 03:41 - Coincidence vs. Cause 04:32 - pH, chlorine and CYA graph 07:36 - Chlorine leaves CYA when the pH gets high enough 09:11 - How alkalinity is involved 11:32 - Relationship 2: Chlorine can increase alkalinity 12:17 - Excess hydroxides in liquid chlorine and cal hypo accumulate 14:30 - Chemistry...
The man who rules his pool 25.10.2023 30:08
00:00 - 🎶 The man who rules his pool 02:36 - How I ruled my pool this summer 03:43 - Spreadsheet documentation 04:42 - Pool Volume: approximately 24,000 gallons 06:05 - May 9-14: Green pool cleanup 07:57 - May 14: Balance the LSI 12:08 - Leaves, debris, vacuuming and dilution 13:45 - Weekly liquid chlorine and CV-600 enzymes 15:02 - Two major rain storms and mud slides 16:46 - Add it all up 17:5...
Commercial Swimming Pools (w/ Dennis Ingram) 18.10.2023 20:07
00:00 - Brief introduction 00:41 - CV-600's eye-opening results in commercial pools 03:34 - Filter purge 05:59 - Scale issues 07:19 - Phosphates 10:54 - UV 12:20 - LSI in commercial pools 14:36 - pH and alkalinity, overdosing acid feeders 19:24 - Closing ------------------------------------ Connect with Orenda Technologies Website: https://www.orendatech.com Help Center: https://ask.orendatech.c...
Indoor Air Quality, and Remembering Derek Ingram (w/ Dennis Ingram) 04.10.2023 36:15
00:00 - Long introduction 02:23 - Remembering Derek Ingram 10:47 - Introducing Dennis Ingram 13:33 - Origins of the Paddock Evacuator 17:08 - Indoor pool chemistry 19:36 - Developing the Evacuator into the standard of care 23:53 - A paradigm shift in natatorium HVAC design 28:15 - Derek's legacy ------------------------------------ Connect with Orenda Technologies Website: https://www.orendatech...
Chemical Conflicts | Specialty Chemicals 27.09.2023 27:40
00:00 - Long introduction and housekeeping 05:02 - What are specialty chemicals? 07:25 - Metal removers 10:17 - Citric acid (ascorbic or vitamin C) 12:09 - SC-1000 conflicts with chlorine initially 13:55 - Sequestering agents vs. phosphate removers 17:43 - Enzymes vs. polymers 18:44 - Enzymes vs. various products (hydrocarbons) 20:46 - Orenda's philosophy 23:23 - Closing ------------------------...
Chemical Conflicts | Alternative Sanitizers (w/ Terry Arko) 20.09.2023 12:59
00:00 - Introduction 01:01 - Biguanides 03:45 - Hydrogen Peroxide 05:37 - Bromine 07:06 - Secondary Systems 10:51 - Wrap up ------------------------------------ Connect with Orenda Technologies Website: https://www.orendatech.com Help Center: https://ask.orendatech.com Blog: https://blog.orendatech.com YouTube: https://www.youtube.com/user/OrendaTechnologies Facebook: https://www.facebook.com/or...
Chemical Conflicts | Algaecides (w/ Terry Arko) 13.09.2023 22:34
00:00 - Introduction 01:03 - Types of algaecides 01:52 - Copper sulfate 04:54 - Quat and Polyquat (quaternary ammonia) 08:11 - Enzymes conflict with polyquat algaecide too 09:53 - Sodium bromide 13:35 - Mineral systems and ionized metals 16:09 - Ammonium sulfate and Dimethyl ammonium chloride 19:14 - Polymers 20:13 - Wrap up ------------------------------------ Connect with Orenda Technologies W...
Chemical Conflicts | Chlorine 23.08.2023 24:26
00:00 - Introduction 04:54 - Rule 1: Never let chlorine touch any other chemical 07:16 - Rule 2: In commercial pools, pick ONE type of chlorine 09:11 - Rule 3: Keep acid stored with separate spill containment 11:44 - Rule 4: For residential pools, only one primary chlorine type, and possibly one secondary chlorine stored separately 12:36 - Trichlor feeders need to be installed correctly 15:15 - Ru...
Understanding Biofilms (w/ Darla Goeres, Ph.D.) 16.08.2023 52:11
00:00 - Introduction 04:07 - What is a biofilm? 07:36 - Biofilms encompass more than previously known 11:48 - Microbially-induced corrosion 17:14 - Are all biofilms bad? 20:26 - Biofilms are like Jell-o 24:32 - Biofilm ingredients and chlorine resistance 28:17 - Kill vs. Removal 32:23 - Prevention vs. Remediation 36:42 - How clean is clean? 40:01 - Log-reductions in disinfection 42:53 - How to rem...
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