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  • Writer's picturePool Protection Technologies

Exploring the Different Types of Chlorinators: Choosing the Right Solution for Your Pool

Maintaining a clean and healthy swimming pool is crucial for every pool owner. One essential component in achieving crystal-clear waters is a chlorinator. Chlorinators are devices designed to dispense chlorine into the pool, effectively sanitizing the water and eliminating harmful bacteria. In this article, we will delve into the world of chlorinators, exploring their various types and functionalities. By understanding the differences between automatic chlorinators, salt chlorinators, and floating chlorinators, you'll be better equipped to select the ideal solution for your pool.



What is a Chlorinator?


Before we delve into the different types of chlorinators, it's crucial to grasp the fundamental purpose of these devices. At its core, a chlorinator is designed to automate the process of adding chlorine to pool water, resulting in a consistently sanitized swimming environment. Chlorine plays a vital role in safeguarding against harmful bacteria, viruses, and algae, effectively preventing waterborne illnesses and ensuring the clarity of the water. By understanding the significance of chlorine and its role in maintaining a healthy pool, we can now explore the diverse types of chlorinators available to pool owners.


Types of Chlorinators


Automatic Chlorinators


Automatic chlorinators are popular choices for pool owners due to their convenience and efficiency. These devices connect to the pool's plumbing system, allowing water to flow through them while dispensing chlorine. There are two main types of automatic chlorinators: in-line and off-line.


In-Line Automatic Chlorinators:


In-line automatic chlorinators are installed directly into the pool's plumbing system. They are typically situated after the filter and heater and before the water returns to the pool. Water passes through the chlorinator, which houses chlorine tablets or sticks. As the water flows, it gradually dissolves the chlorine, effectively sanitizing the pool. In-line chlorinators offer seamless integration into the pool's plumbing, ensuring efficient distribution of chlorine.


Off-Line Automatic Chlorinators:


Off-line automatic chlorinators, also known as offline feeders or erosion feeders, are installed independently from the main plumbing system. They are connected to the return line after the filter and heater. Off-line chlorinators have a separate compartment where chlorine tablets or sticks are placed. Water passing through the return line is diverted into the chlorinator, allowing it to mix with the chlorine and re-enter the pool. Off-line chlorinators are easy to install and maintain, making them a popular choice for pool owners.


Salt Chlorinators


When you think of a chlorinator, a salt system may not be the first thing that comes to mind, mainly because it doesn't require the addition of chlorine tablets. Surprising, right? Instead, salt systems generate their own chlorine using a process called electrolysis. As the saltwater flows through the chlorine generator cell, a low-voltage electrical charge transforms the salt particles into hypochlorous acid, which is essentially chlorine.


Salt systems have been utilized for over three decades and have evolved into more advanced and low-maintenance solutions. They are the epitome of automation, operating for extended periods without the need for constant intervention. Another advantage is that pool salt doesn't dissipate or evaporate like chlorine does, requiring replenishment only when lost due to factors like filter backwashing, splashing, or pool draining.


However, it's important to consider the potential drawback of investing in a salt chlorinating system—the initial cost. Most systems start at $1,000 or more and may necessitate a complete water conversion if you currently have a traditional chlorine pool. While you'll save on chlorine tablets, it's worth noting that the salt cell itself can be expensive and typically needs replacement every 3 to 7 years.


Floating Chlorinators


Floating Chlorinators are simple yet effective devices designed to dispense chlorine into the pool. These are essentially floating containers that hold chlorine tablets or sticks. As the container floats on the surface of the water, the chlorine slowly dissolves, releasing sanitizing agents into the pool. Floating Chlorinators are easy to use and require minimal installation. They are an ideal choice for small pools, hot tubs, or temporary pools.





Selecting the right chlorinator for your pool is crucial for maintaining a clean and safe swimming environment. Automatic chlorinators, including in-line and off-line options, offer convenience and effective chlorine distribution. Salt chlorinators provide a gentler and more natural swimming experience by converting salt into chlorine through electrolysis. On the other hand, floating chlorinators are simple, cost-effective solutions suitable for smaller pools. Consider your pool's size, maintenance requirements, and personal preferences when choosing the most appropriate chlorinator for your needs. With the right chlorinator in place, you can enjoy crystal-clear waters and worry-free swimming experiences all season long.

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