How to Lower Pool Alkalinity (And Stop pH From Rising)

High alkalinity is one of the most overlooked pool chemistry problems—and it's often the real reason your pH won't stay where you put it. If you're constantly adding acid only to watch your pH climb right back up a few days later, you're probably not dealing with a pH problem at all. You're dealing with a total alkalinity problem. Helpful Links & Products Mentioned: Pool Deals & Equipment: https://thepoolnerd.com/deals ICO Smart Pool Monitor: https://thepoolnerd.com/deals In this video, I explain what total alkalinity actually is, why high alkalinity causes endless pH drift, and the exact acid-and-aeration method I use to safely lower alkalinity without damaging your pool. We'll cover: • What total alkalinity (TA) actually does • Why high alkalinity causes pH to keep rising • The connection between alkalinity, chlorine efficiency, and ORP • Recommended alkalinity ranges for fiberglass, vinyl, gunite, and plaster pools • The acid and aeration method explained step-by-step • How much muriatic acid to add • When to use muriatic acid vs dry acid • How to monitor alkalinity trends • Signs your alkalinity is too high • Common mistakes pool owners make when lowering TA You'll also learn why scale forms on heaters and salt cells, why chlorine becomes less effective as pH rises, and how continuous monitoring can help catch alkalinity problems before they become expensive equipment repairs. Recommended Equipment: • Muriatic Acid • Reliable Pool Test Kit • ICO Smart Pool Monitor • Pool Aeration Features (Returns, Waterfalls, Fountains) • Protective Safety Equipment If you're tired of fighting rising pH, cloudy water, scaling, or constantly adding acid, this guide will show you how to fix the root cause instead of treating the symptoms. For more pool chemistry guides, pool maintenance tips, robotic pool cleaner reviews, and equipment recommendations, visit ThePoolNerd.com. #PoolMaintenance #TotalAlkalinity #PoolChemistry #SwimmingPool #PoolCare #PHBalance #MuriaticAcid #PoolWater #PoolOwner #ORP #PoolTips #PoolCleaning #WaterChemistry #ICO #ThePoolNerd 0:00 - Intro 0:42 - What Is Total Alkalinity? 1:35 - Why High Alkalinity Is a Problem 2:38 - What Should My Total Alkalinity Be? 3:28 - What You Need (Checklist) 4:16 - How to Lower Alkalinity: Step-By-Step 6:10 - How to Monitor Alkalinity 7:36 - Frequently Asked Questions 8:19 - Final Verdict