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    Pool Shock

    1. 7 months ago
      Best shock thay I have ever used.
      I got a box of 12 bags & I'm glad I did. It does more than shock. I have a fibreglass pool and had trouble with staining when I shocked with a different brand, it also dissolves quickly
    2. 7 months 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 months ago
      Great Shock for Price and Excellent Pool Water
      Best Shock I've ever used in 25 years. Very efficient results with less use than in the past with lithium shock
    1. 9 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.
    2. 2 years ago
      Great Dissolving Qualities
      In The Swim granular chlorine is the only one we will use in our pool. Coupled with occasional Super Pool Shock treatments throughout the season, the pool stays crystal clear. A great combination, and one that we have counted on for over ten years.
    3. 2 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.
    1. 9 years ago
      No more rashes!
      We have had our above ground pool in use for the past 11 years. We were always using cholorine granular on a daily basis. Last year my husband developed a skin rash every time he went in the pool so we had our water tested. Our Cyanunic Acid level was 268ppm. The norm is 30-80ppm. We were advised not to use our pool. When the level of cyanuric acid rises, the “killing power” of the free chlorine residual weakens. At above 50 ppm of cyanuric acid, the time it takes to kill bacteria in the water ... read more is much longer compared to swimming pool water without cyanuric acid. When the level of cyanuric acid builds up, the chlorine becomes increasingly less effective in keeping the water clean and problems such as high bacterial and algae growth can occur. We were advised to drain our pool and start over, which we did. We now only use the Chorine free shock daily and our levels are now in the normal range and our pool is clean. No more rashes! I would have never known that cyanunic acid would have built up in our pool so much over the years and cause bacteria. We definitely recommend using the chlorine free shock and will continue to do so.
    2. 6 years ago
      Great on my skin
      I have a fair skin complexion making me highly susceptible to chlorine. I originally thought I could get by with just using this and not using Chlorine in my pool. Nope don’t make that mistake, that was a rookie move I had made many years ago until I found my pool having mustard algae and a huge chlorine demand. Wound up forking out a lot of money to bring my chlorine levels back up to par, but I paid for the lesson. So while you still need chlorine to effectively balance your pool, this is ... read more great for weekly shock treatments and upkeep which is easier on my skin then standard chlorine treatments.
    3. 4 years ago
      Excellent Compliment for Chlorine Users
      I learned this from several pool chemistry experts, plus through use over years. If you use chlorine to general purpose sanitize your pool, this is an excellent complimentary shock treatment. It disperses well and you will not have any where near as long of a wait time as super-shocking with chlorine to keep the kids/guests out of the pool. Individual packets are a plus, but it is more costly than chlorine. It's worth it as an alternative shock.
    1. 4 months ago
      The perfect chlorine
      I have been using this chlorine for my pool for the past 2 years. It has done a great job. Wouldn’t want to use any other product.
    2. 4 days ago
      Good job.
      Works great for me, does a good job. Helps me get the pool ready to winterize.
    3. 6 years ago
      Won't switch back!
      I ALWAYS use liquid chlorine and would pick it up with my groceries while at my local Wal-Mart. The huge bottles took up most of my cart not to mention mixing with groceries never set right with me. I saw this product online and with the free shipping thought, why not. When I first received the package, I thought something was wrong because the box was so small. The bottles were really little which really worried me. I can't believe how well they work. One of these little bottles works better ... read more and lasts longer then a whole gallon jug of the other stuff I used to buy. It dissolves quickly and does not leave a powder residue on the bottom of the pool floor. A little more expensive then what I was paying before but I use less and it gets delivered right to my door. So worth it!
    1. 7 months ago
      Great Value
      We always get our pool products here and are never disappointed.
    2. 1 year ago
      Eliminated My Yellow Algae
      We have a 15,000 gallon 16 year old concrete pool that needs to be refinished because it has corroded over the years from chemical use which creates the perfect environment for algae growth. We had mustard algea pretty much everywhere with a concentration on the sides and steps. The Super Algeacide and Super Shock totally eliminated it! It took a lot of elbow grease (brushing and vacuuming), but after a couple days and almost the entire bottle of Super Algeacide over the course of thee days, it ... read more is gone and has remained gone! Last summer I spent much more $ at our local pool supply store buying products to eliminate the mustard algea. Great product and great price!
    3. 7 months ago
      Great price for great products.
      Great value compared to other places, glad I didn’t get price gouged by the chain stores.
    1. 2 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.
    2. 3 months ago
      Great product
      My CYA was getting high so I needed something to add chlorine/shock my pool that wouldn’t increase it. This is exactly what I needed! It works well and my pool is very clear.
    3. 2 months ago
      Cleared Up My Black Algea
      I have had a terrible time with both Black and Yellow Algea all Year. Southern Ca is very hot and intense sunlight seemed to just keek the Algea growing, I tried Bags and Bags of the Di Chlor with no results . I finally bought the 50 LB of HTH and in One Day it cleared it up. Cannot be more happy. Great Price and Product.
    1. 4 years ago
      Now that the summer has passed and I have some experience with this product I feel I can give an honest assessment. It works. The fine granules dissolve much better than other formulations at 68% or less available chlorine, and it has killed and oxidized anything I've ever found in my pool. Figuring the cost per unit of available chlorine shows that this product is cheaper even though it's priced higher. And you use less of it. Recommend that for maximum effect, powder shock should be broadcast ... read more into the pool after the sun goes down.
    2. 6 years ago
      Love this Stuff!
      I am still just a few years into owning an above ground pool. The first year was a disaster. The second was not a huge improvement. It was expensive, burdensome, frustrating and stressful. I was at the local pool store several times a week One day I ordered shock from In The Swim. I was hooked. It is August and my water has been sparkling clear all summer. All of my chemicals come from here. I get compliments on my clean water all the time. Best of all I enjoy the pool. I can finally say I am ... read more happy that I bought a home with a pool. I highly recommend their chemicals. As a bonus you will save tons of money.
    3. 2 years ago
      Great results!
      This is our first year in our new house, and the pool had been poorly taken care of by the previous owners. The water was cloudy even after an almost complete water change and balancing. Then it turned green. Yuck! The pool shock we bought from our local pool store was not cutting it. Saw this online and figured it was worth trying. So happy we did! This in combination with Super Floc Out cleared the water right up. Now we use Super Pool Shock once a week to prevent new algae growth. I won't use anything else!
    1. 5 months ago
      excellent producer.
      I have been using this pool shock for years and I find it very effective. No need for super shock in my 30,000 + gal pool
    2. 1 month ago
      Great Service
      Always have what I need at a good price. Quick delivery every time.
    3. 5 months ago
      Great product
      Happy with pool shock and all the pool supplies we've purchased from In the Swim. Highly recommend. Work better then my local pool store line.
    • 2018-12-10
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    In The Swim Knowledge Pool: Swimming Pool Shock

    In The Swim's Dr. Pool

    Shock Treatments for Swimming Pools

    Granular chlorine is a convenient way to sanitize and disinfect pool water. Used in small amounts, swimming pool shock can raise chlorine levels quickly for a pool found to be lacking. In larger amounts it will easily super-chlorinate or hyper-chlorinate pools for removal of cloudy water, chloramines, and disinfectant by-products. Most importantly, swimming pool shock quickly destroys pathogenic bacteria, viruses and microbes found in pool water. 


    The Many Types of Pool Oxidizers

    •  - Di-Zap Multi Shock is stabilized, and can be used daily in pools, spas and fountains without calcium build-up.
    •  - Pool Shock and Super Pool Shock from In The Swim is suitable for all purposes, sold in bags and buckets.
    •  - Non-Chlorine pool shock does everything that pool shock does, with exception to killing heavy algae blooms.
       

    The Many Uses of Pool Oxidizers

    •  - Restores clarity to cloudy pool water
    •  - Kills pool algae strains of all types
    •  - Sanitizes to destory bacteria of all types
    •  - Removes chloramines and other chlorine byproducts
    •  - Breaks down organic and non-organic matter, and bather waste
    •  - Raises chlorine levels quickly when found to be near zero
    •  - Removes stains on plaster, pebble and fiberglass pools
       

    How To Shock a Pool

    •  1. Clean the pool of debris before shocking a pool
    •  2. Balance the water chemistry and adjust pH to 7.2-7.4
    •  3. Each pound of pool shock can deliver between 7-9 PPM, per 10,000 gallons of pool water
    •  4. Add enough to reach a target threshold of 10, 20 or 30 PPM, depending on water condition
    •  5. Brush the pool, and run pool filter for 6-8 hours following super-chlorination
    •  6. Keep solar covers safely stored off the pool until high chlorine level subsides
    •  7. Check chemistry levels within 24 hours and adjust as needed, if chlorine is found to be zero, repeat shock treatment
       

    Pool Shock Treatment Tips

    •  - Always add chlorine to water, Never add water to chlorine
    •  - Always use the entire bag, Never store half-used bags of shock
    •  - Distribute the chemical around the pool, Never pour into the skimmer
    •  - Always adjust pH level to the low side, 7.2-7.4, where chlorine is more potent
    •  - Brush the pool after shocking, with a stiff pool brush, or a stainless steel bristled algae brush
    •  - Vinyl pools should pre-dissolve pool shock. Pour into a bucket of clean water and stir until dissolved
    •  - Sweep up any spills immediately, and add directly to the pool.
    •  - Never mix chlorine granules with any other type of chemical, or anything except water.

    For More Info See our Pool Shock eGuide:

    Pool Shock eGuide

    Read More | Download