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    Pool Shock

    1. 4 weeks ago
      This shock works.
      I have been using this shock for the last 15 years. 2 bags into the skimmer every one to two weeks and my water is crystal clear.
    2. 3 weeks ago
      Cal-hypo pool shock review
      Haven't started the new packaged product yet, but the cal-hypo we use is the same thing in a pail. Works as advertised and we have been using it for a while now. Good results.
    3. 2 months ago
      Pool shock
      I buy this pool shock every season it works great and I like the price
    1. 3 years ago
      A Great Product
      I have been using this product as a supplemental pool shock for 16 years. I have lots of grand kids and like to keep my chlorine level at 3ppm. After heavy swim usage I shock with chlorine-free shock to sanitize with out raising the chlorine level. As a retired Pool Store employee I have recommended this type of shock many times to customers who have had high chlorine levels but needed additional water sanitation.
    2. 10 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.
    3. 10 years ago
      Fast accting
      I used many other pool shock products and was disappointed,some left residue that forced me to vacuum entire pool, then I had to wait for chlorine count to come down -usually 24 hours,when I switched to chlorine free shock I don't have to worry about these issues, this product does what it supposed to do with no "side effects" could enter the clear water in my pool several minutes after application
    1. 2 years ago
      Great Chlorine Product!
      I bought this product and so glad I did. It works great! I use it with Yellow Out in my pool and it works wonders. I recommend it to all.
    2. 1 month ago
      Nice stuff
      This stuff works but follow directions. Dissolves quickly
    3. 1 week ago
      Instant Liquid Chlorine is a great product very ea
      Works great and easy to dispense. Will buy again!
    1. 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.
    2. 2 years ago
      Pool Opening
      I bought chlorine granules, shock and pool perfect. After the first initial shock, for the remainder of the year all I use in our pool is the granules and the pool perfect. It is crystal clear.
    3. 2 weeks ago
    1. 2 years ago
      Excellent product
      I have had great results with this product. Well worth the money.
    2. 1 month ago
      Great product
      This is the same chlorine I use from our pool supply store. It works great and is really less expensive. Its a plus that it is delivered right to my door.
    3. 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.
    1. 1 year ago
      Great Value
      We always get our pool products here and are never disappointed.
    2. 1 year ago
      Great price for great products.
      Great value compared to other places, glad I didn’t get price gouged by the chain stores.
    3. 2 years 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!
    1. 1 month ago
      Great Product!!
      This stuff works amazing...I used to get yellow (algae) steps for most of the summer....not with Di-Zap...crystal clear pool with very little maintenance...even with a Golden Retriever in the pool everyday.....Get this stuff!!
    2. 3 weeks ago
      First Time User
      This is my 2nd summer with an inground pool and the Di-Zap worked better than I expected. Cleared the water quickly and it remains clear for the entire week. Even after an event. I'll definitely purchase again.
    3. 2 weeks ago
      multi shock
      works great. started using this year and will be the one used
    1. 1 month ago
      Great for pool start up
      Super shock shortens time it takes to make pool go from green to clear when opening it for the season
    2. 3 weeks ago
      Pool Shock
      Really good shock for the money...a little cheaper then at the pool store and does the same job.
    3. 2 years ago
      Wonderful Products!
      I've been purchasing our pool supplies from In the Swim for 5 years now, and we haven't had one issue with the pool. Routine shock, ph, chlorine, but nothing else. In the Swim will be our only supplier while we have a pool. Thank you!
    • 2019-07-22
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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