3-Inch Chlorine Tabs

The cornerstone of a safe and blue pool… our tabs are the highest quality and made right here in the USA

🚚 Free shipping on all orders 📦 Arrives in 2-4 days for orders within the domestic US

  • Triple-Action Formula: Sanitizes, clarifies, and prevents algae in one step with 99% Trichlor for pristine, safe swimming conditions.
  • UV-Resistant: Enhanced with cyanuric acid for superior protection against the sun's rays, ensuring longer-lasting chlorine effectiveness.
  • Slow Release: Our tabs dissolve gradually, providing consistent chlorination and reducing the need for frequent adjustments.
  • Safety First: Comes in a childproof bucket with individually wrapped tabs to minimize odors and contact risks.
  • 20 tabs per bucket.
  • Safe to swim right away.
  • 10lbs lasts a 20,000 gallon pool for 5+ weeks.
  • Insert 3-inch chlorine tabs into a floating dispenser, automatic chlorinator, or skimmer basket.
  • For floating dispensers or automatic chlorinators, adjust the dispensing rate as needed to maintain ideal chlorine levels (1-3 ppm).
  • Monitor the tabs’ dissolution rate and replace when fully dissolved to ensure consistent pool sanitization.
Product FAQs
  • Explain like I’m 5 version: Chlorine tabs are the cornerstone of most pool owners’ maintenance routines. Chlorine kills bacteria and keeps your pool safe to swim in. Tab form is a very concentrated and convenient format for most pool owners.
  • Full explanation: Chlorine disinfects pools by acting as an oxidizing agent, breaking down bacteria and pathogens' cell walls through a chemical reaction, leading to their destruction. It forms hypochlorous acid in water, which penetrates and destroys the cells' internal structures, preventing reproduction. This process effectively sanitizes the pool, maintaining cleanliness and safety by preventing new growth.

  • We’ll let you in on a little secret: most* of the tabs like this you see on the market are exactly the same. A lot of brands out there will make various fancy claims about their tabs but if you look at the ingredients (which should be on the front, if they are not you have other issues… see below) you’ll see they are exactly the same.

    What we can promise you is that our products come with the easiest to understand instructions, most customer friendly packaging and THE BEST customer service out there.

    *We say most because there are some seriously sketchy outfits selling chlorine out there. This product is (for good reason) regulated pretty strictly by the EPA. If you see a price that’s too good to be true it’s likely being sold (illegally) without proper EPA registration. That means that the product is coming from a non-regulated source and likely does not have the proper instructions, safety information and packaging. Be careful out there pool people 🫡

  • Add the tabs through your skimmer, a floating chlorine dispenser or a chlorinator. DO NOT throw pucks directly into your pool.
  • Add about a weeks worth of chlorine at a time. You will get a feel for your pool’s chlorine consumption over time but a good rule of thumb is one tab per 5,000 gallons.
  • Basically, once the tabs you initially added have dissolved, you add more. If you’re adding the appropriate amount, you should be doing this every week or so depending on weather, usage and how well balanced your pool’s chemistry is (e.g., pH, alkalinity and stabilizer levels).
  • When used as directed and stored properly yes…. chlorine is a time tested way to make your pool water safe and three inch tabs are one of the most convenient ways to add chlorine to your pool.
  • Chlorine tabs are easy to use and slowly dissolve in your pool, keeping the water clean and safe for a longer time. They also contain a stabilizer that protects their chlorine from sunlight, so they last longer. Liquid chlorine works fast but doesn't last as long because the sun breaks it down quicker. Most pool owners find that tabs are easier for regular use and keep their pool in tip top shape all summer long.

How much
do I need?

What’s your pool volume?

Not sure about your pool’s volume ?
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Easy to use
Slick application methods make your DIY job a little easier
Clear video instructions
All our products have a QR code with short, easy to follow video instructions
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Simply put we source only the best, don't wonder about what's going in your pool
Save money
Customers using our products for DIY maintenance save 60% on average vs. hiring a technician
Let us help you, help your pool 🤝
You don't need a pool boy 🙅
Let us help you, help your pool 🤝
You don't need a pool boy 🙅
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Frequently Asked

Simply put, we stand by our products! If you’re not happy with the results just reach out at returns@poolday.com within 30 days of your purchase and we will help you process a return and you will get a 100% refund.

All orders at Pool Day ship free across the entire United States😎

That’s right, even you rare-breed Alaskan pool owners get our products shipped to their door for free. We are very jealous of your endless summer nights, but not so jealous of your 2-month pool season.

Right now, we only ship to the continental USA. We are hoping to expand to additional countries soon!

We are changing the pool care game.

Traditional pool chemical brands sell products with technical sounding names and instructions that are about as easy to interpret as hieroglyphics. You go to your pool store, wait in line to have your water tested, and the next thing you know you’re out a sizeable piece of your paycheck having been sold a whole assortment of products you’re not even sure you need.

Does it have to be that hard? The pool care industry doesn’t want you to know this, but the resounding answer is NO.

We are building a brand that makes it so much easier for the average pool owner to care for their own pool. With easy to understand instructions, top notch customer service and a suite of innovative products, Pool Day is making a splash. Thanks for letting us help you help your pool!