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    Pool Algaecides

    1. 9 years ago
      Best Purchase Ever
      I neglected my pool for over a month and of course I ended up with a horrible algae problem. I tried shocking it several times with many lbs of super shock as well as other expensive algae treatments. I thought I was going to have to drain the pool. I purchased yellow out along with some more shock and followed the very simple instructions. 16 hrs later, no more algae! I would also like to mention that after recieving my yellow out and reading the instructions, I called Coral Seas to make sure ... read more that I could use the product immediately as I had shocked the pool 2 hrs previous. They put me in touch with Sam (the CEO) who was very friendly and beyond helpful. He even ask that I call him back the next day with an update. How's that for customer service! How many times do we find a company who really cares about their customers anymore? It restored my faith :)
    2. 1 decade ago
      Finally!!!
      I used this in combination with the Algaecide 60 plus & had wonderful results! We have been combatting algae all summer & the pool stores were out of solutions! I put this & the Algaecide 60 in and within one day had a beautiful sparkly pool. It did cause a massive need for chlorine all of a sudden. We usually check our combined chlorine levels as well as free chlorine & our tests indicated that we needed chlorine levels of around 50 to burn everything out! After a ton of shock, we finally ... read more started seeing some free chlorine coming back! Also, our ph dropped at some point, so be prepared with some bicarb :-) However, all of our levels are back to normal & our pool is beautiful!
    3. 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.
    1. 3 months ago
      So Far So Good
      My pool has never look so good so far I am super happy and I hope that the results are good for the rest of the season highly highly recommend this product
    2. 2 months ago
      It works!
      It took about a week to go into full effect but after a 2 month battle with algae, my pool has been completely algae free for almost a month now!
    3. 1 week ago
      Great product
      Had algae problem all summer. Nothing cleared it up until I tried this. Water is very clear with no signs of algae.
    1. 1 decade 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.
    2. 1 decade ago
      Saved Me Mega Money and Time
      Two years ago....after being gone for three weeks (and having some attention by my house sitter) my pool got totally out of control. Mega algae bloom. After much effort.......I was told that by pool maintenance pros that I would have to replace the water and possibly the sand in the filter. Replacing the water did not solve the problem.....yellow algae started to return and I was facing about $1000 to change out the sand in my filter. Fortunately No Mor Problems was recommended. I have not had a ... read more problem since. Very good product....use it weekly......outstanding!!
    3. 5 years ago
      8 years of perfect clarity
      I started using No Mor Problems 8 years ago in our 10,000 gallon above-ground pool and it has performed perfectly. I use 2 1/2 ounces once a week and NEVER have algae problems. The only two times I have had an algae bloom was when I skipped the once-weekly application. Each time about a week after the missed dosing, the pool became a murky green, but cleared up in a few days after starting treatment again. If you are consistent, this product is very affordable. Small, regular doses keep algae in ... read more check and the water is really sparkling clear.
    1. 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!!
    2. 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
    3. 4 years ago
      Algae clear
      It was weird, but welcome that it is not blue. That stuff stains and so far our pool is crystal clear.
    1. 1 year 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!
    2. 1 decade ago
      GREAT PURCHASE
      THIS IS THE BEST ALGAECIDE! WHEN OTHER ALGAECIDE PRODUCTS FAIL YOU CAN COUNT ON THIS ONE TO MAKE YOUR POOL CLEAR AGAIN.
    3. 4 months ago
      It really works!!
      My Swimming Spa was 90% covered in black algae . It came overnight after a thunderstorm.I initially used 2x the recommend rate, nothing changed 3 days later I used 4x the recommended rate, nothing changed, 3 days later I used 6x the recommended rate, in 5 days my fiberglass swimming spa was totally clear. Unbelievable.!!!
    1. 1 month ago
    2. 1 month ago
      REVIEW.
      Have only brought IN the swim chemicals and brought them for years. And will always buy them.
    3. 1 year ago
      Great Value
      We always get our pool products here and are never disappointed.
    1. 1 year ago
      Wonderful
      Best algaecide ever! My pool water looks just as clear at spring time opening as it did at fall closing! I would not use any other brand!
    2. 3 days ago
      Works well
      I've used it for several years now, and it seems to do a good job. Having a safety cover on the pool means that some silt, etc., is always going to get in, but the algae growth seems to be less with this.
    3. 5 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. 1 decade 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.
    2. 1 year 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.
    3. 1 year ago
      Wow does this work
      Used 4 pounds and shocked 4 times as directed Also cleaned filter and brushed pool. I have a 50 by 20 funnier pool Went from totally green to a beautiful clear blue
    • 2019-09-20
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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