The COVID-19 supply chain shortages have hit the swimming pool business. A parallel consequence of the chlorine shortage is now an acid shortage. This article will explain how to reduce acid demand by balancing your water chemistry in a more favorable way. You will learn how to stop chasing pH, and instead, learn how to contain it. The results will be less wasted chemicals and more predictable water chemistry.
pH and alkalinity
Pool industry textbooks and certification courses tell us that swimming pools should be maintained ideally between 7.4 to 7.6 pH. But why? Is it for sanitizer efficiency or overall water balance? Or perhaps it is because of swimmer comfort. Everyone we have asked in the pool industry makes mention of the pH of human tears...but a simple online search debunks that myth. So let's challenge conventional wisdom and get to the truth.
The LSI calls for the carbonate alkalinity of pool water...but this is a confusing term. Pool chemistry test kits only measure total alkalinity. So what is carbonate alkalinity? And how is it different than total alkalinity? As we have learned, semantics really do matter for this topic.
Have you ever asked "what's the difference between pH and alkalinity? Many of us in aquatics confuse total alkalinity and pH. It’s understandable, given how blurred the line is between words like “alkaline” and “alkalinity.” Indeed, alkalinity and pH in water chemistry are closely related, but they are not the same. This article will distinguish between them.