Pool alkalinity guides
Total alkalinity is the number that holds your pH stable. When TA is too high, pH becomes difficult or impossible to control — it bounces back up shortly after every acid dose, and at elevated levels calcium carbonate can precipitate and cloud the water. When TA is too low, pH swings wildly with every rainfall, chemical addition, or dose of chlorine. These guides cover the difference between alkalinity and pH, how to lower TA without wrecking pH in the process, and when baking soda vs soda ash is the right tool for raising one without the other.
Pool Alkalinity vs pH: What's the Difference?
pH is what your water is. Alkalinity is what holds it steady. Here's how the two readings relate and which to fix first.
How to Lower Alkalinity (Without Wrecking pH)
High alkalinity makes pH impossible to control. Lower it with muriatic acid or dry acid — the right way.
How Much Muriatic Acid to Add to a Pool
Dose chart by pool size for lowering pH or alkalinity. Includes acid strengths, safety, and step-by-step.
High Alkalinity and Cloudy Pool Water
When TA climbs above 120 ppm it pushes pH upward, causing calcium carbonate to precipitate as fine white particles filters can't catch in a single pass. Here's the fix and how long it takes to clear.
Baking Soda vs Soda Ash: Which Do You Need?
Both are white powders that raise something. Using the wrong one makes the problem worse. Here's when to use each.
Track alkalinity and pH together
PoolChem Tracker shows TA and pH on the same timeline — so you can see how your alkalinity adjustments stabilize pH over time.
