sunlight uv radiation and chlorine photodecomposition, orenda

Sunlight's UV Rays on Cloudy Days

It's a common belief that bright, sunny days lead to more chlorine loss in swimming pools than cloudy, rainy days. But is this really the case? We set out to investigate this theory. This article explains what UV does to chlorine, and the impact of clouds and cyanuric acid on chlorine photolysis.

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cyanurate alkalinity in pools, cya and alkalinity, orenda calculator

Understanding Cyanurate Alkalinity

For swimming pool owners and service professionals, understanding the role of Cyanuric Acid (CYA) goes beyond its basic function of protecting chlorine from sunlight degradation. This article explores the role of cyanurate alkalinity as a pH buffering system and how it influences the overall water balance.

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does chlorine affect pH in a pool? pH for pool, pH and chlorine

Does chlorine affect pH?

Chlorine products have different pH values when dissolved in water, but their impact on the pH of a swimming pool is not always significant. This article discusses how each chlorine type impacts pH and why.

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chlorine %, trichlor tablet showing 55% cyanuric acid and 45% chlorine, pool chlorine

Understanding Labeled Chlorine %

In our last article, we introduced the concept of the Mole, a unit of measurement that allows us to weigh atoms, ions, and more complex molecules. This article expands on that lesson to demonstrate how to read product percentages listed on chemical labels. In particular, we're focused on Chlorine %.

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calcium sulfate scale in swimming pool, calcium sulfate crystals in pool

Understanding Calcium Sulfate Scale Crystals

Do you have sharp crystals in your swimming pool? Depending on your circumstances, they may not be calcium carbonate (aka calcite). They could be calcium sulfate crystals. This article will explain what calcium sulfate is, how and why it forms crystals in swimming pools, and how to prevent it.

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swimming pool chemistry, reduce combined chlorine, reduce calcium hardness, reduce TDS, reduce cyanuric acid

What raises and lowers individual pool chemistry factors?

When troubleshooting a swimming pool, it helps to know what can cause individual chemistry factors to increase and decrease. This article is an overview of the most common chemistries we measure in swimming pools, and what causes their levels to change up or down.

We have also included a Rule Your Pool Podcast episode for each factor we talk about in this article. 

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