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    Pool Algaecides

    1. 9 years ago
      AMAZING!!!!
      This product is amazing! We lived with a murky pool all last summer, and the pool store was telling us everything was fine. This year our pool was green when we opened it and after spending at least $400 on products from our local stores (yes, we used 2 different stores) we still had a murky pool that wouldn't stay balanced, and "silt" was constantly appearring. We were told we must need to replace our sand or our filter. We then ordered No Mor Problems and watched our pool fix itself before our ... read more eyes! Within 3 days we had a beautiful pool! Two months later, our water clarity is still brilliant! All we do is treat with this product weekly and add chlorine tabs. No more copper algeacide, super blue, shock! Give it a try!!! It's well worth it!!!
    2. 3 years ago
      BEST pool product hands-down!
      I started using No Mor Problems a few years ago and I'm telling you, it really is THE BEST pool product you can use for keeping your pool clear the entire season! I used to take trip after trip to the pool store to have my water checked because I couldn't get my pool levels right. Since using No Mor Problems I haven't had my water checked one time! It is sold as an algaecide, but really it's just the clear pool catalyst. The only thing I ever have to add is shock and soda ash to raise the PH. ... read more Needless to say, it is an aptly named product.
    3. 2 months ago
      Crystal Clear Pool
      No Mor. This stuff clears a green pool to crystal clear. Pool was bad and nothing else seemed to work. Put half in one day the rest the next day and the next day it was crystal clear. Will be ordering some more.
    1. 3 years ago
      The BEST algaecide ever!
      I started using this product about 5 years ago to get rid of a huge algae bloom. Nothing had worked up until then. The SeaKlear was nothing short of amazing. I use 1/2 a bottle every 3 months along with In the Swim super shock and I have the clearest water all the time.
    2. 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.
    3. 1 year ago
      Poor it. Forget it.
      Easiest way to make sure you have algae under control for months.
    1. 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.
    2. 3 years ago
      Best Algaecide on the market
      We have used this product for at least 8 years straight now and no other product works as efficiently as this. It is costly but no other products are needed as others that need an additional product to eliminate the foam.
    3. 3 years ago
      Cleared the pool. when algae 60 failed.
      Bought this after alge 60 failed to change my pool. Turned a white cloudy left on vacation for a week and came back to s clear pool
    1. 10 months ago
      Finishing touch
      I've been battling the cleanup of algae for a year. Our (fired) pool service did nothing for it except to add more and more liquid chlorine. We've used several products that have been working, but we just couldn't get rid of all of it. We decided to give this product a shot. I put it in last night, then the powder chlorine, 12 hours later, more powder chlorine. Tonight I only had 3 small spots of algae left. I have 1 more time with the powder chlorine and I think we'll have it licked. I wish I'd ... read more started with this product a year ago.
    2. 8 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. 7 months ago
      Wonderful !!
      Our pool was dark green with a layer of scum on top. We worked hard to get it clean to no avail. I was ready to give up and drain it . I ordered this product as a one last ditch effort . The first treatment didn’t work , the next day we put the rest of it in and by the next morning , the green was gone !! I couldn’t believe it when my husband called me out to look at it ! This product really works and now we are enjoying our pool= green free !!
    1. 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!
    2. 1 year ago
      Excellent product
      Very happy with the results and easy of closing pool
    3. 8 months ago
      Great Value
      We always get our pool products here and are never disappointed.
    1. 2 years ago
      It works well!
      Have used this in the past and it works well enough to purchase again. It devastates any returning black algae. I had it speckled all over when I went to open my pool 2 years ago. Nothing worked till this. I did scrub all over once I put it in the first time. The algae let go and was swept up and away.
    2. 6 months ago
      Great product
      As with any kind of algae you have to work at it! First I use pool shock which I pour liberally over the areas worst affected. 24 hrs later scrub. Then I use an entire bottle and retreat with half a bottle if necessary, the next day. This works. It was recommended by a pool guy who has been doing pools for over 35 years, not me! Just sayin!
    3. 9 years ago
      most copper content
      still have black algae problems and have done everything recommended. Product seemed to slow things a bit but didn't kill it off.I steel brushed it then scrubbed with a chlorine tab then shocked and then added 15 oz of this product at night, only to have the algae resurface 4 days later.
    1. 2 years ago
      Fabulous product
      I live in west tn the winters are mild. It gets warm under the tarp. I put the winter algrcide in at closing around the end of sept. & to be safe another bottle the end of jan its 20x40 inground. In the spring its algi free! can see 10 ft down & ready to open
    2. 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
    3. 3 years ago
      long lasting
      our pool does not get covered in the winter and I love the way this lasts!
    1. 1 decade 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.
    2. 1 decade ago
      Finaly something that works
      We (or a friend) brought mustard algae from the lake. I spent hundreds of dollars on other chemicals in the past 3 years to get reed of the algae but it kept coming back a couple times per year, especially when we forgot to run the Polaris for a week. I tried every algaecide I could find in the stores and pool supplies companies. That's when I sent an email to ask what product would work best for my well water, salt system inground vinyl pool. Yellow out is just fantastic, It killed mustard ... read more algae overnight like nothing I tried before, with less than 2 pounds of it! Hopefully it is gone for good! Untill somebody brings some from the lake again. Tip: Make sure you ask anybody ready to swim in your pool if they used their bathing suit in a pond, lake, river, sea etc... and if they washed their suit since. That's how we ended up with mustard algae in the first place. Great product, Thanks.
    3. 6 months ago
      Worked fast
      I had a few patches of yellow algae on the plaster walls of my pool that other algaecides never quite got rid of. I brushed the affected areas, added Yellow Out and did a chlorine shock. The walls and water looked great the next morning! I was surprised the chlorine went from 10 ppm to 0 ppm overnight, but I just added a few more pounds of chlorine and now it is stable 2 ppm. The algae has not come back for two weeks! If it stays away two more, I will definitely buy Yellow Out again.
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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