America's #1 Direct Source for Pool Supplies!

1.800.288.7946 Experts Available 24/7

Call Cart
one day delivery

1 Day Delivery

Your ZIP Code: Ashburn Change Location

To Ashburn Change
Celebrating 35 Years!
Source / Promo Code:SOCIBLOGEdit
cart overlay

    Showing 0 of 0 item View All

    Estimated SUBTOTAL* :  $0.00

    *Excludes taxes, handling fee, and EZ Pay Service Fee, if applicable.
    Source Code:SOCIBLOG Edit

    Pool Algaecides

    1. 2 years ago
      Seems to work
      We were having trouble cleaning up our pool after a too-late spring opening. We tried a Green to Clean treatment, and the pool cleared up much more quickly. How much of this is due to the product, and how much to the associated shock treatment is hard to say, but if I ever find myself in the same predicament, I'll use the product again.
    2. 9 years ago
      Green To Clean FAST!
      Due to a hurricane and alot of rain our pool was left with alot of debris, and with the hot , humid temperatures we had a major algae bloom within a couple of days. By the time we got power back the pool was green from top to bottom. I had ordered this product with my usual order of chlorine just to have on hand. Within a little over a day we had our pool back to normal. I really did not think it would clear it that fast, but it did. It is part of my pool staples now every year. And the price is ... read more excellent compared to a walk-in store.
    3. 9 years ago
      awesome product
      spent 100.00s of dollars trying to clean pool. our pool was cloudy and green for a month. nothing worked from pool store. looked online and found this. put this in at night next morning pool was blue and clear.I will never be without this product.
    1. 9 years ago
      With arthritis, we keep our pool warmer than the average pool. This results in a struggle with algae. Our pool has been either green or cloudy most of the summer- yuk...and we have spent hundreds of dollars on chemicals. This would have been tolerable if it had resulted in clear water. I even replaced fairly new filters, thinking this may be the answer. I saw this product and thought the mechanism of action seemed logical. Well, we now have the clearest water we've had in 7 years! I anticipate a ... read more great decrease in the cost of operating our pool....and it is beautiful now.
    2. 8 years ago
      Great Customer Service
      Similar to another poster, I followed the instructions and it clogged my DE Filter. I tried to bump it (it's not bump capable). I wound up having to completely backwash the product out. HOWEVER, I was still pegging a 1000+ p/bb on Phosphates - so I thought I'd give it another try. I called their customer service department to ask how to proceed. Not only did they offer a solution - they provided some free maintenance product after I bring the phosphates down. It always help to call! I'll try and ... read more do a follow-up post after my next batch. Therefore, if you have problems - definitely call the vendor; they appear to stand strongly behind this product.
    3. 5 years ago
      My pool suffered with stains for years. The time we spent sweeping it to get rid of the stains was in vain. I thought that eventually we would have to spent big bucks to have it re-plastered. I read reviews of this product and thought I'd give it a try. I ordered it and In The Swim shipped it out fast. Poured it in the pool, turned the pump on, and I couldn't believe my eyes. The next day when I looked at the pool it was clear, bright as the day it was built. No stains. Dead algae at the ... read more bottom...yes. But no stains! Ran the pumps again to clean up the dead algae and there it was. A beautiful pool with white bottom and sides. This stuff works.
    1. 2 years ago
      long lasting
      our pool does not get covered in the winter and I love the way this lasts!
    2. 1 decade ago
      Winterizing Wonders
      Third year now that I have used the In The Swim winterizing package for my in-ground pool. Works like a charm and saves the cost of hiring someone to do it for me. This spring, the water needed less attention than prior seasons due to addition of floating clorinator included in the package. Thanks for making opening easier but my former pool guy misses the business. Maybe he'll pay you not to sell your products ??
    3. 3 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
    1. 7 months ago
      I bought this at the beginning of the summer and the pool is still clear.
    2. 3 years ago
      great. timing
      We are having a cool wet summer. The algee was hard to control. I ordered your 90 day treatment on Thursday A.M.. I received it on Friday. It is GREAT, Thanks
    3. 2 years ago
      Algae Problem??? NO PROBLEM!!!
      Been having horrible algae problems for the last two seasons. Tried everything - algaecide, super shock... NOTHING worked. Saw this product, and thought "what the's worth a shot." OMG ~ so glad I did. Liner is squeaky clean...haven't had that for three seasons! Highly recommend this product. It's been a sanity saver, and we're FINALLY enjoying the pool again.
    1. 1 decade ago
      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!
    2. 9 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. 2 weeks ago
      Works Great for stubborn algae
      I am very pleased with the yellow out that I bought from in the swim. Any product that I have got from in the swim has always been great service along with good dependability and yes I will recommend this to a friend.
    1. 10 years ago
      Great Product - Needed more shock
      The Algae Attack Pool Chemical Value Pack was fantastic. It was able to kill the algae in our pool. We just bought a house that came with a pool. The previous owners didn't take care of the pool so it was EXTREMELY DARK GREEN! This product worked great in getting it clean! (It didn't get the pool 100% clean, but it was so horrible.) Definitely recommend the product! Our gunite pool has never been happier!
    2. 8 months ago
      Perfect Value Pack
      boosted my chlorine and got rid of blooming algae fast
    3. 4 years ago
      Algae Pool Pack
      We bought this last month when we had an algae bloom. The package arrived very fast and we added it to the pool, following the directions. It cut the algae out in no time at all and was just what we needed.
    1. 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.
    2. 9 years ago
      This algaecide worked well and took care of my black algae.
    3. 9 years ago
    1. 2 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
    2. 2 years ago
      bye bye green swamp
      My pool when from emerald green to azure in 36 hours. perfect!
    3. 3 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.
    • 2018-03-22
    • bvseo_sps, prod_bvsp
    • cp_1
    • tr_24
    • loc_en_US, PRD
    • clientname_Intheswim, pc_8, tc_8
    • bvseo_sdk, java_sdk, bvseo-3.1.0
    • CLOUD, getContent, 16ms
    Use Pool Algaecides for Clear Water
    Algae blooms cause problems for many swimming pool owners and pool algaecides can prevent this problem from happening. 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 which is why it's important to employ pool algaecides whenever possible. This is because algae spores can be carried into the water by the wind and by swimmers. Once algae blooms take root in your pool, they can become unsightly and can clog your pool's filter. As a result, it's important to use effective pool algaecides 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 by adding pool algaecides into your pool water initially. 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 algaecides reduce the need for pool shock treatments and are safe for a variety of pool surfaces. In addition, In the Swim's pool algaecides will effectively eradicate and prevent the growth of several different types of algae. Our swimming pool algaecides can take your pool from cloudy to crystal clear in less than 24 hours. In the Swim's selection of pool algaecides includes Green to Clean algaecide, which is a natural and non-toxic chlorine enhancer that boosts the killing power of chlorine-based shock products. We also offer Algaecide 60 Plus, a non-metallic and non-foaming algaecide for pools that is even effective against pink algae. Additional swimming pool algaecides available from In the Swim include Super Algaecide and Phos Free. Super Algaecide is a top-quality copper-based algaecide for pools that is ideal for spring openings while Phos Free eliminates phosphates from the water, thereby effectively starving the algae and preventing its growth. From our Green to Clean swimming pool algaecides to our Phos Free products, all of our available algaecides and algae-preventing formulas are powerful, effective and safe. Furthermore, all pool algaecides from In the Swim are available for great value so you can take care of your pool and enjoy sparkling clear water without straining your budget.