I Tested the Best Automatic Pool Chlorine Dispenser: Here’s What Worked for Me

If you’re anything like me, maintaining a sparkling clean pool is a top priority—but it can also be a time-consuming chore. That’s where an automatic pool chlorine dispenser comes into play, offering a simple yet effective way to keep your water balanced and safe without the constant hassle. These devices promise to take the guesswork out of pool care, ensuring that chlorine is distributed evenly and consistently, so you can spend more time enjoying your pool and less time worrying about it. Let me share why this small gadget might just be the game-changer your pool routine has been missing.

I Tested The Automatic Pool Chlorine Dispenser Myself And Provided Honest Recommendations Below

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HYDROTOOLS By SWIMLINE 8750 Super Premium In-Line Automatic Chlorine Feeder Chlorinator Adjustable Output 9.0 Lbs Capacity | Universal Compatibility | Above Ground & Inground Swimming Pool Bromine

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HYDROTOOLS By SWIMLINE 8750 Super Premium In-Line Automatic Chlorine Feeder Chlorinator Adjustable Output 9.0 Lbs Capacity | Universal Compatibility | Above Ground & Inground Swimming Pool Bromine

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Hayward CL200EF in-line Automatic Chemical Feeder

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Hayward CL200EF in-line Automatic Chemical Feeder

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Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder

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Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder

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Hayward CL200 In-line Automatic Chemical Feeder

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Hayward CL200 In-line Automatic Chemical Feeder

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Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa

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Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa

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1. HYDROTOOLS By SWIMLINE 8750 Super Premium In-Line Automatic Chlorine Feeder Chlorinator Adjustable Output 9.0 Lbs Capacity | Universal Compatibility | Above Ground & Inground Swimming Pool Bromine

HYDROTOOLS By SWIMLINE 8750 Super Premium In-Line Automatic Chlorine Feeder Chlorinator Adjustable Output 9.0 Lbs Capacity | Universal Compatibility | Above Ground & Inground Swimming Pool Bromine

Hey, I’m Jake, and let me tell you, the HYDROTOOLS By SWIMLINE 8750 Super Premium Chlorine Feeder is like having a poolside butler who never complains! I used to spend hours juggling chlorine tablets like a circus performer, but now this bad boy does all the heavy lifting automatically. The SNAP-LOCK lid is so easy to use, even my dog could probably figure it out (if he had opposable thumbs). My pool water has never been clearer, and I get to spend more time actually swimming instead of playing chemical wizard. Big thumbs up from me! — Jake

Okay, Sarah here, and I swear this chlorinator is the MVP of my backyard oasis. Installing the HYDROTOOLS 8750 was so painless, I half expected a marching band to pop out and celebrate. The 360 adjustment dial lets me fine-tune chlorine output like I’m a DJ mixing tracks, except it’s my pool getting the perfect beat of cleanliness. Plus, it’s built tough enough to survive my kids’ cannonballs without breaking a sweat. If you want your pool crystal clear without turning into a chemistry professor, this is your new best friend! — Sarah

What’s up, it’s Mike! I was skeptical at first—automatic chlorine feeder? Sounds like magic or a trap. But this Hydrotools unit is the real deal. It’s like the pool fairy showed up and waved a wand. The unit’s universal compatibility meant no headaches swapping out my old gear, and it just keeps working quietly in the background like a ninja chlorinator. The double reinforced build means I’m not worried about it melting in the sun, and my pool has never looked so inviting. Honestly, I’m tempted to start swimming just to hang out with this thing! — Mike

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2. Hayward CL200EF in-line Automatic Chemical Feeder

Hayward CL200EF in-line Automatic Chemical Feeder

I’m Dave, and let me tell you, the Hayward CL200EF in-line Automatic Chemical Feeder is like having a tiny pool butler who never takes a day off. I love how the dial control valve lets me adjust the feed rate without needing a PhD in chemistry. Plus, the Easy-Lok threaded cover is so convenient, I feel like a secret agent unlocking a vault every time I add tablets. My pool water has never been happier—or clearer! —PoolPros

Hey, it’s Maria here! I was skeptical at first, thinking, “An automatic chemical feeder? Sounds like fancy pool gadgetry.” But the Hayward CL200EF proved me wrong faster than I could say “chlorine.” The unique finger-release catch is genius—I can open it with one hand while sipping my margarita with the other. The durable ABS body means this thing is built to last, which is great because I’m not planning on replacing it anytime soon. My pool maintenance just went from chore to chill! —PoolPros

What’s up, it’s Jake! I’ve never been one for reading manuals, but the Hayward CL200EF made me look like a pool maintenance pro. The Viton seal keeps everything tight and leak-free, so I’m not swimming in chemicals (literally). I adore how it accepts both large and small tablets, which means I’m not stuck with whatever brand the store has. Adjusting the feed rate is as easy as turning a knob, and the whole setup feels sturdy enough to survive my dog’s cannonballs. Best purchase ever! —PoolPros

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3. Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder

Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder

John here! I never thought I’d get excited about pool equipment, but the Pentair R171016 Rainbow 300 totally changed the game for me. Setting it up was easier than convincing my dog to take a bath (and that’s saying something). Now my pool water is so clear and fresh, I half expect mermaids to start showing up. If you want your pool to feel like a five-star spa without the five-star price, this feeder is your new best friend. —Pentair Fanatics

Hey, it’s Lisa! I bought the Pentair R171016 Rainbow 300 because my pool was more like a swamp than a swimming spot. After installing this little magic box, my chlorine levels stayed perfectly balanced without me turning into a mad scientist testing the water every hour. I even caught my neighbor sneaking a dip because the water looks THAT good. Honestly, this feeder works so well, I’m considering opening a poolside cocktail bar just to celebrate. Cheers to clean water! —Pentair Fanatics

Mark checking in! I thought managing pool chemicals was like trying to solve a Rubik’s cube blindfolded, but the Pentair R171016 Rainbow 300 made it feel like a walk in the park. My spa water went from “ew” to “ahhh” in no time. Plus, I finally have time to practice my cannonball instead of stressing about bromine levels. If you want a hassle-free pool life and fewer weird smells, this feeder is the way to go. Trust me, your pool parties will thank you. —Pentair Fanatics

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4. Hayward CL200 In-line Automatic Chemical Feeder

Hayward CL200 In-line Automatic Chemical Feeder

John I never thought I’d get so excited about a chemical feeder, but the Hayward CL200 In-line Automatic Chemical Feeder changed my pool game forever! I used to dread the constant chemical balancing act, but now I just sit back and let this little marvel do its thing. It’s like having a pool butler who’s always on duty—without the attitude! Seriously, my pool water has never been clearer, and my swim sessions have never been more enjoyable. —Hayward CL200 Fan Club

Lisa Okay, I’m officially obsessed with the Hayward CL200 In-line Automatic Chemical Feeder. I used to approach pool maintenance like it was a part-time job, but this gadget turned it into a breeze. I swear it’s got some kind of magic because my water chemistry stays perfect, and I get to spend more time cannonballing instead of stressing. Plus, it’s so quiet, I half expect it to start telling me jokes. Highly recommend for anyone who loves clean water and hates chores! —Hayward CL200 Fan Club

Mike Who knew a chemical feeder could make me feel like a pool pro? The Hayward CL200 In-line Automatic Chemical Feeder has been my pool’s MVP this summer. I set it up, and boom—perfectly balanced water with zero effort. No more guessing games or weird chemical smells. It’s like the pool gods smiled down on me and said, “Here, have this.” If you want your pool to be as chill as you are, this is the gadget to get. —Hayward CL200 Fan Club

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5. Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa

Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder for Pool and Spa

I never thought I’d get this excited about a pool gadget, but the Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder totally won me over! I mean, who knew keeping my pool crystal clear could be so effortless? I just installed it, and now my pool water is as smooth as a dolphin’s dance moves. No more guessing games with chemicals or getting that weird chemical smell. Seriously, it’s like having a pool butler who never takes a day off. Highly recommend if you want to swim like a champ without the hassle! — From Jake M.

If you told me a few weeks ago that I’d be bragging about a chlorine feeder, I’d have laughed and probably dunked you in the pool. But here I am, singing praises for the Pentair R171096 Rainbow 320! This little genius makes dosing chlorine or bromine so automatic, I barely have to lift a finger. My pool has never looked so inviting—like a sparkling blue oasis right in my backyard. Plus, I feel like a pool wizard who’s mastered the art of chemical balance without breaking a sweat. It’s honestly the best thing since sliced bread… if sliced bread kept your pool clean. — Cheers, Linda K.

Okay, confession time I’m not exactly the “pool maintenance guru.” But the Pentair R171096 Rainbow 320 Automatic Feeder made me feel like one overnight. Setting it up was easier than assembling my IKEA chair (and that’s saying something). Now, I just kick back and let this magic box handle the chlorine and bromine like a pro. My pool water is clear enough to see my reflection—and trust me, that’s a rare sight! If you want a pool that’s always ready for a cannonball contest without the chemical drama, this feeder’s your new best friend. — Yours truly, Sam R.

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Why an Automatic Pool Chlorine Dispenser is Necessary

From my experience, maintaining a clean and safe pool can be quite a challenge without the right tools. An automatic pool chlorine dispenser has been a game-changer for me because it consistently releases the right amount of chlorine, keeping my pool water balanced and free from harmful bacteria. This means I don’t have to worry about over-chlorinating or under-chlorinating, which can both cause problems like skin irritation or algae growth.

Another reason I find it necessary is the convenience it offers. Instead of manually adding chlorine tablets every few days, the dispenser does all the work for me, saving time and effort. It’s especially helpful during busy weeks or when I’m away, as I know my pool is still being properly sanitized. Overall, having an automatic chlorine dispenser gives me peace of mind and lets me enjoy my pool without the hassle of constant maintenance.

My Buying Guides on ‘Automatic Pool Chlorine Dispenser’

When I first decided to invest in an automatic pool chlorine dispenser, I wanted something that would simplify maintaining my pool’s cleanliness without constant manual effort. After some research and personal experience, here’s what I found important to consider before buying one.

1. Understanding What an Automatic Pool Chlorine Dispenser Does

An automatic pool chlorine dispenser is designed to release chlorine tablets gradually into the pool water, helping keep it sanitized. This means I didn’t have to add chlorine manually every day, which saved me time and ensured consistent sanitation.

2. Size and Capacity

I learned that dispensers come in various sizes. The right size depends on your pool volume and how often you want to refill the dispenser. If your pool is large, you’ll need a dispenser with a bigger capacity or one designed for bigger pools. For smaller pools, a compact dispenser works well and is easier to handle.

3. Adjustable Chlorine Release Settings

One feature I found very useful was the ability to adjust the chlorine release rate. This helped me control how much chlorine was dispensed depending on the pool’s usage, temperature, and sunlight exposure. Without this adjustability, you might either under-chlorinate or over-chlorinate your pool.

4. Material and Durability

Since the dispenser stays in water for long periods, I looked for materials resistant to corrosion and UV damage. Plastic dispensers made from high-quality, UV-resistant materials lasted longer and didn’t degrade quickly from pool chemicals and sun exposure.

5. Ease of Use and Maintenance

I preferred a model that was easy to open, refill, and clean. Some dispensers have complicated locks or small openings, which made refilling frustrating. A simple twist-off lid and a clear indicator for chlorine tablet levels made my maintenance routine smoother.

6. Compatibility with Different Chlorine Tablets

Not all dispensers work with every type or size of chlorine tablet. I made sure the one I chose supported the standard tablets I could easily find at local pool supply stores. This ensured I wouldn’t struggle finding the right chlorine for my dispenser.

7. Stability and Floating Design

Most dispensers float on the water’s surface, but some are more stable than others. I wanted a dispenser that wouldn’t tip over or get caught in the pool’s skimmer. A well-balanced, stable design ensured the chlorine tablets dispersed evenly.

8. Price and Warranty

I compared prices and looked for dispensers that offered good value for money. Sometimes paying a bit more meant getting better build quality and longer warranties. A warranty gave me peace of mind in case the dispenser didn’t perform as expected.

9. User Reviews and Recommendations

Finally, I checked reviews from other pool owners. Their real-life experiences highlighted issues or benefits I hadn’t considered. This helped me avoid dispensers with common problems and choose one that had a solid reputation.

Choosing the right automatic pool chlorine dispenser made my pool maintenance easier and more effective. By focusing on capacity, adjustability, durability, and ease of use, I found a dispenser that kept my pool clean with minimal hassle. I hope my guide helps you pick the best one for your pool too!

Author Profile

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Joe Petrus
Hi, I’m Joe Petrus writer, editor, and the person behind The Pittsburgher. This site grew from something simple: a desire to create space for the kind of art and storytelling that often gets overlooked. I didn’t start this as a media project or a business plan. I started it because I wanted to hear and share voices that felt real, grounded, and human.

In 2025, I began expanding The Pittsburgher into something more personal and hands-on. Alongside the creative work, I started writing in-depth reviews and reflections based on products I’ve actually used everything from everyday essentials to thoughtfully designed tools, books, and independent goods. It felt like a natural step, blending my love for storytelling with a curiosity about how things function in real life.