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    Pool Algaecides

    1. 4 years ago
      Great Winter Algaecide
      I buy the winterizing kit every year and a extra quart of winter algaecide to add in march never had a problem with the water when opening the pool. great products from in the swim
    2. 4 years ago
      Excellent product!
      Easiest shut down so far with a blue pool! Cant wail to try more of the products.
    3. 4 years ago
      Winter Algaecide
      I have been using the In the swim winter algaecide for about 12 years.... Works great... I put one quart in at closing and I add a quart about ten day before I open the pool in the spring.....
    1. 2 years ago
      bye bye green swamp
      My pool when from emerald green to azure in 36 hours. perfect!
    2. 1 decade ago
      Money Saver
      I bought this product and kept alittle maitainence dose in my pool. My frinds were still having algea problems with every little rain or after returning from vacation. But not me! It's great and I will buy it every year!!
    3. 4 years ago
      Algae Clear
      With the ugly weather we had this summer and turning cold overnight my pool was a mess. This product helped turn my pool back to the clear inviting pool it should be. Very effective and worth every penny.
    1. 1 year ago
      Seems to work
      Due to lots of rain and water temperatures around 95, we were getting heavy algae requiring frequent cleaning and diatomaceous filter changes. After through cleaning and shocking I used the recommended amount of algaecide and after 10 days no algae or filter changes. HOWEVER, the water is no longer crystal clear; it has a yellowish tint.
    2. 2 months ago
      Works as described
      One day after adding the green was gone! Extremely happy
    3. 3 years ago
      Seaklear 90 day pool algae prevention and remover
      Have used this product for the past several years, the best ever keeps pool spotless of algae, put in half bottle every 3 mths. need little to no other chemicals except tabs and some chlorine.
    1. 5 months ago
      Great product!
      Killed all algae with one treatment!! Would definitely recommend this product
    2. 2 weeks ago
      Top quality performer
      I use this product because it gives the kind of results I look for in algaecide.
    3. 1 decade ago
      Finally--a product that worked!
      For some reason this summer, we got a huge outbreak of algae and nothing we had used in the past would break it up. We dosed the pool with this black algaecide and within one dose we had a cleared problem.
    1. 1 year ago
      Great kit!
      This kit is perfect for keeping our pool clear! It makes maintenance a snap!
    2. 5 months ago
      Great Value
      We always get our pool products here and are never disappointed.
    3. 1 year ago
      Excellent product
      Very happy with the results and easy of closing pool
    1. 10 years ago
      BEST PRODUCT!!!!!!!!!!!!!!!!!!!!!!
      LAST WINTER I PUT A SOLAR COVER ON MY POOL, AS THE WINTER IS RELATIVELY MILD HERE. WHEN THAT COVER CAME OFF, MY POOL WAS SO GREEN IT LOOKED LIKE A LOUISIANA SWAMP! I WAS SOMEWHAT CONCERNED ON A CLEAN, CLEAR FUTURE FOR MY POOL. THE YELLOW OUT IS AN ALGAE PROBLEM SOLVER... AN UNDERSTATEMENT.. I USED IT WITH CHLORINE AND MY IN THE SWIM SHOCK. IT WAS INCREDIBLE JUST HOW GREAT THIS PRODUCT IS! FROM SWAMP TO CRYSTAL CLEAR! I'M SOLD. I WILL USE YELLOW OUT ALWAYS! IT WILL NOT LET YOU DOWN.
    2. 10 years ago
      This is th e best stuff I have ever used I love it
      I love yellow out I will never buy anything else. This is the only stuff that you can just put it in and let it go. Last summer my pool had really green water ,I went to the pool place in my area they gave me $150.00 worth of pool stuff, they told me to put it in and it would be clear in 3 days. I did this and still a green pool. I got this yellow out put it in and in 8 hours my pool was clear, I can not say enough good things about this product.
    3. 7 years ago
      Amazing Product
      I used 4 lbs of Yellow Out and 4 lbs of shock and it changed my pool water from green to clear blue. This is the best product I have ever used for getting rid of algae. Don't bother with going to a pool store and buying expensive chemicals. Just follow the instructions on Yellow Out and it will give you something to shout about. My pool look better than it has in years. I am thankful i found this product and will keep some on hand.
    1. 1 month ago
      Green to Clean-It Works
      We purchased Green to Clean because illness prevented us from opening the pool earlier as usual. In order to winterize we needed a clean pool. After cleaning and getting all of the levels of the chemicals right we added Green to Clean according to direction and it did a very good job of getting out the green algae. All that I can say is it does what is advertised.
    2. 7 years ago
      BEST PRODUCT EVER
      Our winter cover fell into the pool this year making our pool a complete green, swampy mess. We cleaned leaves, tadpoles, etc out of the pool and shocked it multiple times with very little results. Green pond, looking water. Green To Clean has shown wonderful results after about 8 hours. We are at the within about 17 hours the pool is only a little cloudy. I will purchase this product to open our pool every year!
    3. 9 years ago
      Worked like a charm
      This spring the kids took the winter cover off without my help and got the filthy sludge from the cover in the pool, by the time I got it filled back up and everything back together a few days later we had a nice green mess in the pool, I knew it would take a fortune worth of chemicals to get it back, I even contemplated draining the whole pool and starting from scratch, but I saw this product and figured it was cheap enough to try. the next morning after putting it in the pool was cloudy and ... read more blue, a little claifier and a day or 2 later we were back in business. Worked great for me.
    1. 1 decade ago
      Best purchase ever
      We've owned our pool for 4 years and I have to honestly say that this is the BEST product we have ever used. It keeps the water crystal clear. We have received so many compliments on how nice and clear our pool water is all the time. Just a small weekly treatment keeps our pool spotless! We would recommend this to everyone with a pool or spa!
    2. 10 years ago
      Great fixer for major algae problems
      Pool has been having major algae problems and has been cloudy. No matter how much algaecide, chlorine, and clarifier I use the pool is still cloudy and not sparkling blue. One application of this immediately fix the issue the next day. I only need to use this twice a year duting the summer season with bi-weekly shocking of the pool and had no more problems as the name implies.
    3. 4 years ago
      An Easy To Use Dual Use Algaecide
      I have been using "No More Problems" for several years and it works very well in keeping my inground Pool water very clear and with a sparkle. I use it between normal additions of Super Algaecide. It does a very good job & the Squirt cap allows me to apply the product right where I want it for best circulation. This is a dual purpose product as it is both an algaecide & clairifier. I add No More Problems when I notice my Pool water looking flat & I want to restore the sparkle we all strive for. NotreDame John
    • 2018-10-15
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    In The Swim Knowledge Pool: Pool Algaecides

    In The Swim's Dr. Pool

    Why Use Pool Algaecides?

    While lack of proper circulation and out-of-balance water chemistry can lead to the growth of algae in pools, even carefully maintained swimming pools can sometimes experience algae growth. It is important to use an effective treatment as soon as an algae bloom appears in your pool and it's also a good idea to take measures to prevent algae from growing in your pool in the first place.


    For killing out of control algae blooms, look to Green to Clean and Yellow Out, natural and non-toxic chlorine enhancers that boost the killing power of chlorine pool shock. Small localized areas of algae can be eradicated with In The Swim Pool Algaecide, Algaecide 50 and Algaecide 60 Plus, and a stiff pool brush. For repeated algae blooms, step up protection with our Super Algaecide, No Mor Problems or Algae Clear for stubborn situations.

    Preventing Pool Algae

    •  1. Well balanced water, with proper pH, Alkalinity, Calcium Hardness and Stabilizer levels.
    •  2. Constant and consistent chlorine level of 1-3 ppm, along with regular superchlorination to 10+ ppm.
    •  3. An effective filter; run the pump each day for 12 hours daily, more or less, depending on effectiveness.
    •  4. A clean pool; brush, skim and vacuum to remove organic debris which contributes to algae problems.
    •  5. Monitor levels of phospates in the pool. Use a phosphate remover when levels exceed 300 ppb.

    If you do all of that, and still have algae - begin an algaecide treatment with weekly doses of our Pool AlgaecideAlgaecide 50 or Algaecide 60 Plus, to assist your chlorine to combat pool algae. Algaecides accomplish this by eroding the outer protective layers of the organism, allowing chlorine to penetrate into the cells.

    Killing Pool Algae

    •  1. Clean pool of debris with skimming, vacuuming and brushing pool.
    •  2. Adjust Alkalinity to 80-120 ppm, Calcium Hardness to 180+ ppm, pH to 7.2-7.3, and stabilizer to 20-50 ppm. 
    •  3. Add Pool Shock per label instructions.
      • - For light green algae with good visibility, add 1-2 lbs of shock per 10,000 gallons.
      • - For medium green pools with visible shallow end floor, add 2-3 lbs shock per 10,000 gallons.
      • - For dark green pools with very poor visibility, use Swamp Treat or Green to Clean with a triple-dose shock.
    •  4. Brush pool and run filter overnight (remove solar blanket covers while chlorine levels are high).
    •  5. In 12 hrs, check pH and chlorine levels. If chlorine has dropped to near zero, repeat treatment.
    •  6. Continue to run filter 24/7, cleaning filter only when filter pressure rises or flow rates decrease.
    •  7. Add a Clarifier after 2-3 days, to assist your filter in removing suspended particles.
    •  8. Add an Algaecide after 4-5 days, adding an initial dosage, followed by regular maintenance doses, per label. 
    •  9. Add a Filter Cleaner after 5-7 days, to remove algae particles trapped inside of sand or cartridge pool filters 

    In The Swim's swimming pool algaecides are highly effective products which will help you keep your pool water crystal clear and algae-free. Our powerful pool algaecide will reduce the need for pool shock treatments and are safe for all pool surfaces. In addition, In The Swim's special formulas will effectively eradicate and prevent the growth of all types of pool algae. Strong algae treatments can take your pool from cloudy to crystal clear in less than 24 hours. 

    For More Info See our Algaecide eGuide:

    Pool Algaecide eGuide

    Read More | Download