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    Pool Shock

    1. 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!
    2. 8 months ago
      Great Value
      We always get our pool products here and are never disappointed.
    3. 1 year ago
      Great kit!
      This kit is perfect for keeping our pool clear! It makes maintenance a snap!
    1. 5 years ago
      Cloudier than other brands
      By chance I had a few bags of ITS Super Shock and a few bags of Ultra Shock made by N. Jones Company. I noticed when putting them in the pool the ITS shock made the pool cloudy and the other did not. I have no idea why, but I would prefer the other shock.
    2. 6 years ago
      Works Great
      Great Pool Shock, 1st Time I've used this product and I will continue to use this great Pool Shock. Easy to mix and use as I dissolve it in a bucket prior to dispersing into my pool. Love this Shock.
    3. 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.
    1. 2 months ago
      Great buy
      I couldn't resist the sale price....it was too good. Plus you add in how great this stuff works made it a no brainer to buy. I just hope a bought enough to get me to next black friday!
    2. 3 years ago
      Good Only When Needed
      I only use a 68% calcium chloride when opening my pool and after adding water when back washing my sand filter to keep the hardness in check. My local pool store sells bags of this for $0.99/lb. Works great as a shock but even after mixing and pouring in front of returns, the water remains cloudy. Muriatic acid brings the PH back in line and removes the cloudy look. The acid adds to the expense and its another chemical I don't like to store with young children. If you test your water regularly ... read more and keep everything balanced there is no need to use a shock. During the summer I only add 6% liquid chlorine that the local pool store sells for $0.99/gallon. Liquid chlorine will not cloud the water and has no other ingredients to upset my pools chemistry.
    3. 2 years ago
      Pool shock
      This pool shock worked okay I use it for opening my pool in spring for some reason that no one can tell me why it takes cases and cases of liquid shock to get the water to read any chorine on the test strip so this year I mixed the shock some liquid some granular it still took a whole lot of shock
    1. 1 month ago
      Good job.
      Works great for me, does a good job. Helps me get the pool ready to winterize.
    2. 6 months ago
      Liquid Chlorine No More
      I have been using Liquid Chlorine from In The Swim for several years. The 5 gallon liquid chlorine started feeling heavier and heavier. This is a great (and lighter) replacement. Works just as well.
    3. 2 years ago
      I LOVE THIS LITTLE BOTTLE
      AT FIRST I WAS SKEPTICAL ABOUT THIS POWDERED INSTANT LIQUID -- I NORMALLY BUY THE LIQUID CHLORINE TO ADD TO MY POOL, SO AT FIRST WHEN I OPEN THIS BOTTLE AND SAW IT WAS GRANULAR I THOUGHT WHY WOULD THEY CALL THIS "INSTANT LIQUID CHLORINE" BUT I HAD NO CHOICE AT THE MOMENT AND USED IT AFTER A LARGE POOL PARTY AND BOY WAS I PLEASANTLY SURPRISED...IT MADE MY POOL CRYSTAL CLEAR AND I'VE HAD TO USE SO LITTLE TO MAINTAIN ON A WEEKLY BASIS...SO I LOVE THAT I'M ACTUALLY SAVING MONEY. THANKS IN THE SWIM!
    1. 4 years ago
      Great for smaller pools
      I've been using this product for years in a vinyl lined 9,700 gal. pool. Regular chlorine shock runs the chlorine level up too high for swimming for over 24 hours, but with this product we can swim the next day. (I usually shock late in the evening.) Also, it doesn't bleach the liner. But if the pool gets infected with algae, you need chlorine shock.
    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. 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.
    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. 1 year ago
      Excellent product
      I have had great results with this product. Well worth the money.
    1. 6 months ago
      So far, so good
      Had too much CYA from “stabilized chlorine” and needed to lower, this product gave me chlorine without CYA, and I’ve had seen my CYA lowering since using it (have had to pump pool few times due to rain) but I use about 6-8oz every other day for 20k gallons, and have had no issues. Was worried about price paid and thought of it not lasting long, however, I’ve hardly put a dent in the bucket, and probably could make a full season last from one bucket at the rate I’m using currently
    2. 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.
    3. 4 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.
    1. 8 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.
    2. 8 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
    3. 2 years ago
      Bought to help in the management of our salt system pool after having the same recommended by the pool supply where a water sample was taken which is about 29 miles one way.
    • 2019-01-20
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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