[00:00] - Intro

[01:01] - How acid lowers pH

[03:14] - Hypochlorite chlorines

[04:20] - How hypochlorites are made

[06:20] - Chlorines leave behind muriatic acid in water

[07:28] - Excess hydroxides

[09:50] - What can be done to limit the alkalinity rise?

[12:01] - Closing

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[00:00] - Intro

[01:27] - David's background

[05:38] - Better Understanding CO2

[10:12] - Runaway TA on CO2 Pools

[15:25] - Why CO2 tanks freeze

[19:11] - Total Dissolved Solids (TDS)

[27:17] - What was the TDS limit pre-2005?

[28:28] - Mutual friends with Richard Falk

[32:01] - Closing

Buy David's book on CO2 for pH management in pools: https://davidwatsonpoolconsulting.com/

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[00:00] - Intro

[00:51] - Researching alkalinity since 2016

[05:27] - CYA contributes to TA, so does acid reduce CYA?

[07:09] - Acid vs. Bicarbonate Reaction

[09:08] - Sodium and Chlorides are Spectator ions

[12:10] - Does acid burn through Cyanurate Alkalinity too?

[15:04] - What about chlorinated isocyanurates?

[17:20] - Closing

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[00:00] - Intro

[00:38] - Bill's background

[07:27] - Expanding education and manufacturing capabilities

[14:44] - Clearance for fiberglass pool installation

[17:28] - How to become a fiberglass pool installer

[24:03] - Researching fiberglass "chalking"

[31:36] - Selflessness

[34:09] - Chalking looks like calcium silicate bound to to gelcoat polymers

[37:40] - The LSI, and chelating calcium

[40:04] - Gelcoat molecular structure

[46:15] - Thursday Pools' chemistry recommendations

[52:49] - One chemistry strategy that gets everyone's needs met

[57:00] - UV systems impact fiberglass chalking?!

[1:01:39] - Closing

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[00:00] - Intro

[01:44] - Wójtowicz Update to the LSI Formula

[04:21] - Dr. Langelier's Original Index Formula

[05:56] - What water wants vs. What air wants

[08:18] - Closing

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[00:00] - Intro

[02:38] - S2211 - Unit A, part 2

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[00:00] - Intro

[01:00] - What is natural stone?

[02:42] - Calcite is a dense form of calcium carbonate

[06:24] - Aggressive water seeks calcium, even in natural stone

[08:04] - Other natural stones that contain calcium

[11:22] - Closing

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[00:00] - Intro

[01:50] - Matt Mueller's Background

[08:49] - Issues that Led to Reverse Osmosis

[11:03] - Draining and Refilling Depends on Tap Water Chemistry

[12:33] - The RO Process

[17:17] - The RO Experience, from a Customer's Perspective

[21:34] - Is Dilution the Solution to Pollution?

[23:14] - Density Stratification

[29:36] - How Low Should You Go?

[34:32] - What is Osmosis?

[36:09] - Is it Drinking Water Safe?

[37:27] - Flow Rates

[39:00] - How Much Does RO Filtration Cost?

[41:19] - Biofouling

[46:06] - What Can Be Removed from Water?

[47:10] - Closing

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