America's #1 Direct Source for Pool Supplies!

1.800.288.7946 Experts Available 24/7

Menu
Call Cart
one day delivery

1 Day Delivery

Your ZIP Code: 77072 Houston Change Location

To Houston Change
Celebrating 35+ Years!
Source / Promo Code:WYAARUNKEdit
cart overlay

    Showing 0 of 0 item View All

    Estimated SUBTOTAL* :  $0.00

    *Excludes taxes, handling fee, and EZ Pay Service Fee, if applicable.
    Source Code:WYAARUNK Edit
    Memorial Day Sale!
    save up to 20% OFF! Select Pool Supplies!
    Save Up To 20% OFF! Select Pool supplies!
    BEST PRICES on hundreds of items! Shop Now

    Chlorine & Bromine

    1. 3 years ago
      THE BEST
      I USED TO THINK CHLORINE WAS CHLORINE; it's all the same. I have been using the super multi tabs for a few yrs now. Will never use anything else. I never have problems with algae or spring start ups. I used to spend days in the spring getting pool back in shape. We live in dusty Arizona & those monsoon dust storms we get can play havoc on a pool. Best chlorine!
    2. 12 months ago
      Easy. Once a week in the dispenser and I’m done
      Used these last year. Kept my pool almost 100% clean. My pool Gets full sum so only had a tad bit of algee in the hottest days. Other than that. I add 3 tabs a week and it’s crystal clear.
    3. 3 years ago
      Sure makes it simple!
      I've had a pool for over 20 years and have used every type of tablets or chemical imagined. This tablet ends my search! My pool is CHRYSTAL CLEAR and it takes no effort with these tablets! All year long with a balanced pool.
    1. 3 years ago
      Much Better than Granular Chlorine
      I had used granular chlorine for years up purple stains (copper?) started forming on the pool walls. Then I switched to calcium hypochlorite. It is much more effective, and no copper stains or algae in two years. It is a bit more expensive, but it works. One minor problem: Unlike granular chlorine, you have to be home to sign for the delivery of calcium hypochlorite.
    2. 2 weeks ago
      for a quick clear pool
      great powdered chlorine, gets pool clear fast, use it all the time.
    3. 3 years ago
      exactly what I needed
      I had a to treat my pool for white water mold several times of the last 3 years which required multiple applications of high amounts chlorine based shock. The chlorine shock that I used was stabilized and the end result included my pool water registering a high level of stabilizer. I needed to find a chlorine product that did not include a stabilizer and this product was EXACTLY what I needed.
    1. 5 years ago
      Excellent Product
      I tried the instant chlorine and it works great. I put in my pool every eight days and the water is clean and a nice blue. I like it better then the liquid chlorine due to the fact that the containers always leek when I buy them at the hardware store.
    2. 2 years ago
      Easy
      We have been using for two years.....we have a above ground pool....we are retired...these little bottles are wonderful, does a fabulous job of adding solution's to our pool.....
    3. 6 months ago
      Good job.
      Works great for me, does a good job. Helps me get the pool ready to winterize.
    1. 4 days ago
      Perfect for Chlorine Users
      I am a customer. This is a great product, no cloudiness, super easy to use. I really like the quality of customer service and ordering and delivering directly to my home. I highly recommend.
    2. 3 weeks ago
      Great 3" Chlorine Tablets
      We have been using these tablets for over a year and they last a long time and do their job. They have been the most economical tablets we can find on the market.
    3. 2 weeks ago
      great tabs
      works hard to keep pool clear all summer long, fits in my pink flamingo floater
    1. 3 years ago
      Used on new pool
      I had a brand new pool that had been filled for five days, and didn't have any circulation or filtration. Things were starting to get cloudy and a little green (quick). Once I had the filtration system online, I dosed the water according to instructions, and the water cleared up quick.
    2. 1 year ago
      The BEST!
      I tried this last season when there was a special on it. You get what you pay for . BUY THIS. Dump in and walk away every week. Clear Water, no headaches. Compliments on the pool clarity to follow. Excellent product well with the added $$. Thanks again intheswim for keeping pool maintenance simple.
    3. 2 years ago
      Takes the place of multiple chemicals
      Using Di-Zap and compounded 3 inch tablets for chlorinator is all you need to keep pool sparkling clean. Cuts down on need for purchasing a bunch of other chemicals.
    1. 9 months ago
      Quick Delivery and Packaging
      First time user to In the Swim. I placed an order at noon on Monday, and the Chlorine tablets were delivered by 1:00 PM the next day. In the 10 pound container, the tablets were packaged into 1 pound segments. Definitely saved money vs. a pool store.
    2. 3 years ago
      Great product, excellent service ....
      I love 1" chlorine tablets and ordered a 50 lb bucket. It is hard for me to lift this weight so I had geared myself up to lift it and pour some tablets into a smaller container to put into my chlorinator. Imagine my happiness when I opened the 50 lb bucket and found it already divided into smaller cellophane bags. All I had to do was take out a bag, cut it open, and put into the chlorinator. I am keeping the algae at bay and not putting my back out. Thank you soooo much!!!!
    3. 10 years ago
      Great chemicals
      I love these. I buy the 50 pound bucket & the tablets are wrapped in smaller bags within the bucket. It makes handling & storage much easier. We use these to refill our automatic chlorinator. I haven't had any problems since we starting filling it ourselves with these 1 inch tablets. We use to get alge from waiting for the chlorine cartridges to empty. Now I can just add more & not worry.
    1. 2 years ago
      Excellent product
      Great product for quick clorine adjustments. I use it in combination of float with 3 in tablets.
    2. 3 years ago
      GOOD SERVICE
      I have been operating a pool for about four years. In the past I would pick up chemicals at pool supply stores or large discount stores. I always had issues finding what I needed when I needed it or paying too much also everyone's product worked reacted differently. In the swim has been a great solution to many problems. I am busy and generally order my chemicals at night after the kids go to bed, I have found that having in the swim deliver the chemicals to my front door is by far the ... read more easiest way to take care of my 10,000 Gallon pool. I have consistent chemicals that work great! My pool is now always crystal clear and it is easy to maintain the balance.
    3. 10 years ago
      Great Product
      I love the fact that this product works so well with no fuss and muss, You dump the appropriate amount into the skimmer basket and let your filter do the rest. I have no problem maintaining the proper chlorine level and the filter does all the work. If you do run into any algae growth, a heavier dose of this product works well to kill it. No wasting money on costly algaecides. Reccomended doses for weekly shock are on the container too. I also love the safety lid. I have used many that are just ... read more so hard to open, this one just has you squeeze the tab and rotate. No more fighting the lid just to get to the chemical.
    1. 5 years ago
      very good product
      I have been using In The Swim chlorine sticks for about 15 years now along with ITS pool shock and Algaecide 60 plus in my pool. With Texas summers having 100° + temperatures, the combination of these products keeps my pool clean and clear. I maintain my pool on a year round basis with these products and don't have to do spring startup or winterizing and have never had any green water.
    2. 4 years ago
      Works Well So Far
      I bought 50 lbs of the chlorine pill shaped tablets, and they lasted for over a season now, we only needed to purchase a 25 lb bucket to get us through thus season. Pool has remained clean and clear using these tablets, very effective!
    3. 10 years ago
      No More Trips To the Pool Store !
      Ever since I switched to In The Swim I no long make weekly trips to the pool store. The products are fantastc and get shipped direct. I love the Chlorine Sticks I have tried all the expensive brands and for the past two seasons I have used in the swim brand and my pool is crystal clear. I use three products from in the swim - Clorine Sticks . Phree and clear and pool perfect with phosfree THATS ALL !! and it been the best two seasons in 10 years. Check out the other products as well
    • 2019-05-25
    • bvseo_sps, prod_bvsp
    • cp_1
    • tr_24
    • loc_en_US, PRD
    • clientname_Intheswim, pc_8, tc_8
    • bvseo_sdk, java_sdk, bvseo-3.1.0
    • CLOUD, getContent, 8ms
    • SPOTLIGHTS, CATEGORY

    In The Swim Knowledge Pool: Pool Chlorine & Bromine

    In The Swim's Dr. Pool

    America's Most Popular Pool Chlorine!

    According to the CDC, free chlorine kills most bacteria in less than a minute if concentrations and pH level are maintained properly. Swimming pool chlorine is the most widely accepted pool sanitizer available, and for over 75 years, pool chlorine has been the most popular method to disinfect and sanitize pool water. Pool bromine can be used as an alternative pool water treatment, yet chlorine tablets and granular chlorine remain America's first choice for maintaining clean and clear pool water. 


    Pool Chlorine or Pool Bromine?

    The general rule is that bromine is more often used in spas and hot tubs, and chlorine is more often used in pools. Although they are close cousins and adjacent to each other on the Periodic Table, bromine and chlorine have distinct differences, and unique benefits to offer pool owners. 

    Chlorine and Bromine

    • - Bromine can be reactivated to reduce cost.
    • - Bromine is more stable in hot water, to provide longer lasting sanitation, even during full use.
    • - Bromine is more stable in a wider pH range, remains strong under rapid pH swings.
    • - Bromine has less odor in the water, and less irritation to skin and hair.

     

    • - Chlorine is the most economical way to sanitize a pool.
    • - Chlorine is sun-stabilized in our 1" or 3" slow dissolve Trichlor tablets and 8 oz. sticks.
    • - Chlorine tablets and sticks dissolve rapidly enough to treat larger pools effectively.
    • - Chlorine granules react instantly for rapid super-chlorination or shock treatments.

    Swimming Pool Chlorine Types and Use

    In The Swim pool chlorine dissolves fast and almost instantly begins to sanitize your pool water. In The Swim 3 Inch Chlorine Tablets are 8 oz. stabilized pool tablets, and are also available as a 0.5 oz. pellet, in our 1 Inch Chlorine Tablets, for very small or very large pools. In The Swim 8 oz. Slow Dissolving Chlorine Sticks work fast and last longer. Our 3-inch Super Multi-Tabs are unique chlorine tabs with stabilizer, algaecide and clarifier added. Sticks or tablets can be used in chlorine floaters, or place the pucks into an in-line or off-line chlorine feeder, to provide a daily sanitizer level that is consistent and constant. 

    In The Swim granular chlorine like the economical Cal-Hypo granular chlorine and stabilized Di-Chlor chlorine granules are both available loose in buckets and also sold in 1-pound bags, as Pool Shock, Super Shock and Di-Zap. Pre-dissolve chlorine granules into a large bucket of water for vinyl pools, or sprinkle the powder directly into concrete pools, spas and fountains to maintain sanitizer levels, to raise low levels rapidly, or to super-chlorinate the pool. Granular chlorine is used regularly to quickly kill algae and bacteria, and to oxidize microscopic particles and contaminants in the water.

    Pool Chlorine Chemistry

    Chloramines form when a chlorine molecule has combined with ammonia or nitrogen to produce the familiar scent often associated with swimming pools - that’s not the smell of free chlorine, but of combined chlorine. As chloramines build up they reduce the effectiveness of your sanitizer. When the chloramine level (Total - Free Chlorine) is greater than 0.3 ppm, (TC-FC=CC), this is time to add pool shock to your pool to remove the chloramines. 

    UV rays from the sun breakdown chlorine which makes your sanitizer less effective. Although In The Swim pool chlorine tablets are stabilized, it takes some time for a residual to build up. Pool stabilizer (aka conditioner) contains cyanuric acid to reduce sunlight degradation. It’s like sunscreen for your chlorine, and will save you money in the long run. 

    The pH of your pool water has a large effect on the efficacy or potency of your chlorine. In addition to maintaining stabilizer levels in the 30-50 ppm range, keeping a close eye on pH will reduce your chlorine costs, and also help ensure clean and clear pool water. At a high-pH level of 8.2, over half (+50%) of your chlorine is wasted. Pool chlorine works best at low pH ranges of 7.2-7.4, and becomes less active in higher pH pool water. 

    Bromine for Swimming Pools

    In The Swim Bromine Tablets are slow-dissolving by nature, and can take longer to build up a residual, although bromides can be added to quickly boost levels. Bromine is also un-stabilized, so it does not stand up well to bright sunlight. However, bromine tablets are popular for indoor pools or heavily shaded outdoor pools. Bromine pools have a softer smell of pool bromine, and can re-activate bromides into bromine, simply by shocking the pool (with chlorine!). 

    To use bromine in a pool, you will need to have a bromide ion 'bank' built up, or a preexisting level of bromide ions (the reduced form of bromine). Many bromine users add Brom Booster to raise levels quickly when converting a pool to bromine. Then you simply use the bromine tabs in a brominator (bromine floaters are not as effective). In The Swim Bromine is a BDCMH formula that stands up to sun degradation better than other bromine tablets, and contain no cyanuric acid.


    For More Info See our Chlorine and Bromine eGuide:

    Chlorine and Bromine eGuide

    Read More | Download