Learn how to clean and maintain your saltwater or chlorine swimming pool. Use Pool Calculator’s tools to keep your swimming pool and hot tub chemicals balanced and cloudy pool water clear!

Introduction to Swimming Pool and Hot Tub Chemistry

Interested in learning more about what it takes to keep your pool or hot tub in great shape? This article describes the chemistry involved in keeping your pool or hot tub safe and your water crystal clear. It will help you better understand what the tests you are taking mean, and what happens when your pool chemistry is no longer in the recommended ranges.

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Swimming Pool Water Testing Basics

Everyone enjoys having a clean and clear pool, but maintaining perfectly balanced pool chemistry can be a challenge. It is necessary to learn what each pool test means and why it is important in keeping your pool in perfect shape. We will cover four components of pool chemistry: free chlorine, pH, total alkalinity and cyanuric acid.

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When to Close your Swimming Pool

There are many good reasons to go through a formal pool cleaning process every season. Winterizing your pool correctly protects it from damage, gets the water in good condition for the months it is shut down, and will make it much easier and less expensive to re-open the following summer. Assuming you live in a climate where it is important to winterize your pool, here’s some guidelines to help you decide when to close your pool.

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Five Things Chlorine Will Kill in your Swimming Pool

There are is a lot of misunderstanding about how chlorine works to kill harmful contaminants in pool water, as well is misconceptions about what type of contaminants chlorine will kill efficiently. In this article, we cover 5 important things free chlorine will kill in your swimming pool or hot tub water.

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How Often Should You Test Swimming Pool Chlorine?

In general, chlorine levels should be tested at least twice per week. However, the answer to this question depends heavily on how often your swimming pool is used, who uses your pool, and weather events that may introduce a large amount of fresh water into your pool.

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How to Test, Raise, and Lower Swimming Pool Chlorine

Chlorine is the most important chemical when it comes to maintaining sparkling clean water that is safe to swim in. Chlorine sanitizes your pool water by attacking and killing harmful microorganisms, called contaminates, that could lead adverse health consequences. Therefore, it is critical to know how to test the chlorine in your pool or hot tub, as well as what to do when your chlorine levels are outside recommended ranges.

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The Relationship Between Pool Chlorine and pH

The degree to which chlorine is effective in sanitizing your pool by breaking down contaminants is highly correlated to the degree to which pH is kept in balance.
In this article, we dive into the relationship between chlorine and pH, and how pH of water changes the effectiveness of chlorine.

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