7 best pool chlorinators

Pool chlorinators are important devices used in swimming pools to maintain the appropriate levels of chlorine, which is crucial for keeping the water clean and safe for swimmers. Here's what you should know about pool chlorinators:

Functionality: Pool chlorinators are designed to automatically dispense chlorine or other sanitizing chemicals into the pool water. They ensure a consistent and controlled release of chlorine to maintain proper water chemistry.
Types of Chlorinators:
- Inline Chlorinators: These are installed directly into the pool's plumbing system and are connected to the pool pump.They typically use chlorine tablets or sticks.
- Floating Chlorinators: These are floating devices that hold chlorine tablets. They move around the pool and gradually release chlorine into the water.
Chlorine Source: Pool chlorinators primarily use stabilized chlorine tablets or sticks. These are slow-dissolving forms of chlorine that provide a steady release of the chemical over time.
Adjustable Settings: Many chlorinators allow you to adjust the rate at which they dispense chlorine. This is important for controlling the chlorine levels based on factors like pool size, usage, and weather conditions.
Benefits:
- Consistent Sanitization: Chlorinators help maintain a steady and appropriate level of chlorine in the pool, which is essential for killing bacteria, algae, and other harmful microorganisms.
- Reduced Maintenance: They automate the chlorination process, reducing the need for manual testing and adding of chemicals.
Maintenance:
- Refilling: Depending on the size of the chlorinator and the pool, you'll need to periodically refill it with chlorine tablets or sticks.
- Cleaning: It's important to clean the chlorinator regularly to prevent clogs and ensure proper function.
Safety Considerations:
- It's crucial to follow manufacturer instructions for safe use and handling of chlorine tablets.
- Store chlorine tablets in a cool, dry place, away from direct sunlight and moisture.
Compatibility: When purchasing a chlorinator, it's important to ensure it's compatible with your pool's size and type of plumbing system.
Alternative Sanitizers: While chlorine is the most common sanitizer, some advanced chlorinators can also work with alternative sanitizers like bromine or mineral-based systems.

Remember to regularly test the water's chemical balance, including chlorine levels, pH, and alkalinity, to ensure the pool remains safe and comfortable for swimmers. Pool chlorinators are just one part of a comprehensive pool maintenance routine.

Below you can find our editor's choice of the best pool chlorinators on the market

Hayward CL200 In-line Automatic Chemical Feeder

Hayward

Based on 1 reviews Check latest price

Product description

Hayward CL200 In-line Automatic Chemical Feeder

From the Manufacturer

Hayward CL200 Automatic Chemical Feeder with Mounting Base. Efficient and maintenance-free, these durable, corrosion-proof automatic chlorinators and brominators are ideal for Newer existing pools or spas and work automatically with your pump and filter system.

Uses large or small, slow dissolving tablets
Dial control valve allows for easy feed rate adjustment
Easy-Lok threaded cover for safe and convenient access to add tablets
Unique finger-release catch provides extra security
Durable ABS body and high quality Viton seal for extended life

User questions & answers

Question:	can you use pellets instead of the tablets with this system
Answer:	I was told never use nonstabilized chlorine tablets in the chlorinator. I did. And it got all thick and frothy, plugged it up and ruined it.
Question:	I am having trouble with the numbers on my amazon gift card! help
Answer:	Mail it to me, I will use it for you.
Question:	Inlet/Outlet diameters
Answer:	The inlet and outlets are both 1 1/2" threaded hubs. It takes about 15 minutes to install.
Question:	Does this come with "O" rings
Answer:	Yes, it comes with the one O ring for the screw-on cap. This unit has performed very well for me. Stick with Hayward instead of the off-brand units and you will be much happier.

Product features

About Us

Our objective is to make your pool experience worry and hassle-free. That's why our equipment is engineered to work smart at keeping your pool sparkling clean and trouble free.

For over 80-years, we've been helping pool owners enjoy the pleasures of pool ownership by manufacturing cutting edge, technologically advanced pool equipment worldwide.

Our products include a complete line of technologically advanced pumps, filters, heaters, heat pumps, automatic pool cleaners, lighting, controls and salt chlorine generators-high-quality components engineered to work together.

Automatic Chlorinator for Above Ground and In-Ground Pools in-Line 4.2 Lbs

Based on 185 reviews Check latest price

Product description

This free standing inline automatic chlorinator will work for either in-ground or above ground pools. The chlorinator is fully adjustable so you can regulate the speed at which the tablets dissolve, depending on your pool's chlorine demand. This unit is made of heavy-duty resin. This in-line chlorinator is designed for permanent installation in the pool water return line.

Good for slow dissolve tri-chlor tablets or Bromine sticks/tabs
Dial control valve lets you control and adjust the rate of feed
Fits 3'' chlorine tablets only
Easy threaded cover for safe and convenient access to add tablets or sticks
Corrosion resistant construction for long lasting life

User questions & answers

Question:	Will this work with a Intex Krystal Clear Cartridge Filter Pump for Above Ground Pools, 1000 GPH Pump Flow Rate? And would it fit with the hose
Answer:	Unknown answer without doing research. Sorry
Question:	Does the inlet and outlet ports have inside threads
Answer:	Yes.
Question:	Does anyone know the size of the bolt/screw on top of lid? I have a leak there. The tiny O ring around the bolt needs to be replaced
Answer:	Not sure of exact size but if you bring bolt or old o ring to your local pool store im sure they can match it up for you
Question:	What is needed to install? Do I need to purchase fittings
Answer:	I disconnected the 1 1/2" hose that returns to the pool and attached it to the input of the chlorinator and added a new hose from the output of the chlorinator to the pool. It required and one additional 1 1/2 hose and two 1 1/2 hose adapters.

Hayward CL220 Off-line Automatic Chemical Feeder

Hayward

Based on 1 reviews Check latest price

Product description

The easy, economical and professional way to chlorinate your pool - PVC Pool Parts automatic pool chlorinators are efficient, corrosion-proof feeders designed for easy installation on new or existing pools or spas ranging up to a 9 lb. Capacity. The Hayward automatic chlorinators use large or small Tri-Chlor slow dissolving tablets or sticks - enough to supply three weeks of chlorine sanitation for a large pools and longer for smaller pools. The easy to use integral dial control valve lets you accurately adjust the rate of chlorinating needed to keep your pool sparkling clean.

From the Manufacturer

Hayward CL220 Off-Line Automatic Chemical Feeder. Efficient and maintenance-free, these durable, corrosion-proof automatic chlorinators and brominators are ideal for Newer existing pools or spas and work automatically with your pump and filter system.

Uses large or small, slow dissolving tablets
Dial control valve allows for easy feed rate adjustment
Easy-Lok threaded cover for safe and convenient access to add tablets
Unique finger-release catch provides extra security
Durable ABS body and high quality Viton seal for extended life

User questions & answers

Question:	I can i stall this on a well system to purify water before entering the house
Answer:	I wouldn’t try to purify the water with chlorine. That does not sound safe for consumption. You should check with a local company that purifies water. We had a water softener and a purifier but it used water softener salt and another component was the purifier.
Question:	Why does the top become hard to twist open
Answer:	I have never had a problem with mine , but i only tighten it till it clicks . i have never had any leeks either . when I purchased mine I bought extra o rings and the opener tool but haven't had to use them yet .
Question:	Whats the difference between Hayward CL220 Off-Line Automatic , and Hayward CL200 Automatic Pool Chemical
Answer:	The CL220 uses plastic tubing and saddle valves to attach to your pool plumbing. This allows you to drill two small holes into the existing pool plumbing (one hole in a piece of pipe between the pump and the filter and the other in a piece of pipe just after the filter) to install the feeder. It is designed to be easy to install. The CL200 is the same basic unit except that the ports on the bottom are threaded so that you can use threaded fittings to add it to your system. This requires a lot more knowledge about fittings, connectors and plumbing.
Question:	does it include kit and o ring and kit needed for install
Answer:	Yes, the kit includes everything you will need to install. You will have to drill a small whole into your feed and return line, but they will tell you in the instructions how to do all this. If you have any diy skills I'm sure you can handle it.

Product features

Hayward CL220 Off-line Automatic Chemical Feeder

Product Description:

Hayward automatic chlorinators and brominators are ideal for in-ground applications during new pool construction or aftermarket installations. Models are available for in-line and off-line configurations to accommodate most capacity, plumbing and space considerations. All units incorporate a durable ABS body along with a high quality Viton seal and an ergonomically designed cover to allow for simple lid removal.

Uses large or small, slow dissolving, Trichlor or Bromine tablets
Dial control valve allows for easy feed rate adjustment
Multiple connection options provide a wide range of use and simplified installation

Hayward CL2002S In-line Automatic Chemical Feeder

Hayward

Based on 130 reviews Check latest price

Product description

Efficient and maintenance-free, these durable, corrosion-proof automatic chlorinators and brominators are ideal for new or existing pools or spas and work automatically with your pump and filter system. This uniquely designed feeder is corrosion proof, resulting in a long life span, because of its ABS body along with a high quality Viton seal and an ergonomically designed cover which allows for simple lid removal. The Easy-Lok threaded cover provides safe and convenient access to add tablets. Also incorporated is a finger-release catch which ensures extra security. The feeder is installed in a simple manner when replacing an existing chlorinator or brominator. It will easily install into your already existing pump or filter, as well as on any already existing pool or spa and newly built pool or spa.

From the Manufacturer

Hayward CL2002S In-Line Automatic Chemical Feeder. Efficient and maintenance-free, these durable, corrosion-proof automatic chlorinators and brominators are ideal for Newer existing pools or spas and work automatically with your pump and filter system.

In-Line Chlorinator for above-ground and in-ground pools and spas
Chemical Feeder that will automatically release chemicals so you don't have to; Unique finger-release catch provides extra security
Uses large or small, slow dissolving, Trichlor or Bromine tablets or sticks; Works on newly constructed or already existing pools and spas
Dial control valve allows for simple feed rate adjustment; Features 2" inlet and outlet ports for application with 50 gpm to 90 gpm flow rates
Simple installation when replacing existing chlorinator or brominator; Easy-Lok threaded cover for safe and convenient access to add tablets or sticks

User questions & answers

Question:	It appears the CL200 is a better unit than this unit care to share any experiences regarding functionality
Answer:	I have not experienced any problems with the CL2002S. Chlorine levels have remained consistent sine installing the unit.
Question:	Are the couplings supposed to unscrew, or are they permanently attached to the base? The one i received from you will not screw off
Answer:	They will not screw off. You’ll need reducer bushings to go in them, I reduced to 1.5”.
Question:	We have a 40,000 gallon inground, I know the cl200 does up to 40,000 does this version cover above
Answer:	Where the CL200 has 1-1/2" ports at a range of flow from 30 to 50 gallons per minute, the CL2002S has 2" ports which allow more flow, roughly 50 to 90 gallons per minute. To circulate a 40,000 gallon pool in an 8 hour period you would need about an 83 to 84 gallon per minute flow rate, which would be in the range of operation of the CL2002S.
Question:	Hw many 3inch Chorine tables does this unit hold
Answer:	It holds 10-12 tablets. One thing that has happened to me is that if I put a couple more in there they can get jammed at the top and don't drop down to where the water flows through. If this happens, when you open the chlorinator to check the tablets, it looks like it's full, but it's just that that few at the top got stuck there and there are no tablets below them. So don't overfill.

Product features

Hayward CL2002S In-line Automatic Chemical Feeder

Product Description:

BLUE WORKS Saltwater Generator Chlorinator BLH30 for 25K Gallons Pool with Flow Switch and Salt Cell Compatible with Hayward Goldline Aquarite Plumbing | Cell Plates Made by USA Manufacturer(Yellow)

Based on 260 reviews Check latest price

Product description

The BLH30 works with your current pump and filtration system to provide you with a safe supply of chlorine to enjoy in your pool daily. The best part about using a salt chlorine generator is that there are no harsh chemicals that can be harmful to the skin and eyes. The BLH30 is easy to install and will save you hundreds of dollars in pool maintenance. ATTN: We are not affiliated with Hayward Pool Products, The use of above trademarks herein is for informational purposes only.

Universal Compatibility-Compatible with Hayward Goldline AquaRite, SwimPure, AquaRite XL, NatureSoft, SmartPure, Mineral Springs and Blue Essence Systems. Easy-friendly installation.
Cell plates are made by USA manufacturer.
Alternative to conventional chlorine-The salt chlorination system provides a more natural method of chlorination, eliminating the strong chlorine odor caused by the chlorine produced in the factory. At the same time, it is very convenient and brings the ultimate swimming experience.
Among Top10 the Best Salt Chlorinators 2018/2019/2020 by Ezvid Wiki.
USA Warranty and Support-12 Months Full USA warranty and USA Customer Support. Blue Works BLH30 Salt Chlorination System isn't produced or sold by Hayward.

Product features

Pentair Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder For Pool And Spa

The Easy Way to Sanitize Large Pools

These heavy-duty, high-capacity feeders provide automatic sanitation for residential or commercial pools up to 658,500 gallons. All sizes operate effectively and efficiently with slow-dissolving trichlor or bromine tablets.

Completely enclosed system—no special venting required
No escaping gases
Inline feeders

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

Pentair

Based on 300 reviews Check latest price

Product description

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

Completely enclosed systems - no escaping fumes.
Simple, trouble-free design - no special venting required.
Top-loading makes it easy to add chemicals.
50 PSI maximum operating pressure.

User questions & answers

Question:	Can you use cal hypo tabs in this chlorinator
Answer:	I’m not sure but I found this on …Pool Center.(Blog).com... Cal Hypo granular is used by either manually broadcasting or dissolving into water and pouring into the pool, or it can be used with a granular cal hypo feeder. Cal Hypo is also made in pellets and pucks, or tablets of various sizes, designed to be used in very specific feeders, usually made by the tablet manufacturer, although they could be used in floaters, or floating chlorinators. Most cal hypo feeders like the Accu-Tab or the Pulsar are expensive and complicated items, with exception to new models recently introduced, such as the CCH cal hypo tablet feeder.
Question:	what type of chlorine tablets is recommend for this feeder pentair
Answer:	3 1/2 inch chlorine tablets
Question:	This one i bought doesn't have a screen at the bottom of the unit. my old model 300 did. am i missing it
Answer:	No screen. The exit elbow has a backflow preventer inside, which clogs up from time to time.
Question:	I wonder if anyone has ever used this to dispense muriatic acid
Answer:	Why would you use a TABLET dispenser to attempt to dispense a LIQUID acid? That makes NO SENSE! The plastic is not designed to handle acid. Give it a try though...You’ll probably have pool water being pumped all over the deck in very short order!

Rx Clear Automatic Chlorinator | for In-ground Swimming Pools | in-line Chemical Chlorine Feeder | Holds Up to 9 Pounds of Slow Dissolving Chlorine Tablets

Based on 105 reviews Check latest price

SAVE ON CHLORINE - Use and regulate your chlorine level effortlessly. Dial adjustment valve controls sanitizer flow. Corrosion-proof. Installs easily into existing filter system. In-Line feeders require PVC plumbing. Off-line feeders tap into the existing PVC.
HOLDS 9 LBS OF CHLORINE TABLETS - Small or large, slow dissolving, Trichlor tablets -Dial control valve allows for simple feed rate adjustment.
SIMPLE INSTALLATION - Easy-Lok threaded cover for safe access to add tablets.
NEVER USE - Any petroleum based lubricants on cover O-Ring. Regular lubrication is necessary to allow for easy cover removal. Use non-petroleum based lubricants such as Jack's No. 327 lube. Warranty - 1 Year.
CAUTION - Extreme care must be exercised when adding chemicals to your pool. Concentrated chemicals react violently if they mix in the chemical feeder, causing a fire or explosion, which may result in property damage, personal injury or death.

User questions & answers

Question:	I need a replacement cover o-ring. how do i get one? is the hayward clx200k o-ring suitable
Answer:	My husband has not had to make any adjustments to the feeder. The way the tubes appear in the photo is how he’s left them. The hummingbirds and bees have no problem getting to the nectar:) hope that helps!
Question:	I want to put a valve on the inlet tube. What size is the tubing
Answer:	Thank you for your question! We sell extra bottles in a separate listing on Amazon. Simply search "sweet feeders extra bottles," and you will find the listing.
Question:	What type of O-ring do i use for the lid
Answer:	I would hand wash them, not only would it be much easier with a small bottle brush, but it’s be quicker and prevent potential breakage. The actual tubes are glass, though so I assume you could but I’m not going to.
Question:	Can you install with pool solar? Or too corrosive
Answer:	We have ants in ours. We’re trying to figure out a way to keep them out of it. We’re going to try making them slippery first (least harmful), then if we have to, grits on the window sill.

Product features

Circulation of Pool Water

The Rx Clear Automatic Chlorinator assists in saving on chlorine usage and regulating the chlorine level. The dial adjustment valve helps to alieve controls in sanitizer flow. Corrosion-proof. Installs into existing filter system without any hassle. In-line feeders require PVC plumbing.

Ideal Chlorine Levels

Rx Clear is the ultimate prescription for a crystal clear swimming pool. Steer clear from the threat of algae, bacteria growth, and unsafe pH levels. Rx Clear is your one-stop shop for chlorine, algaecide, clarifiers, and more. Rx Clear delivers fast-acting chemicals with powerful results.