Have tried numerous products to kill this black algae in our swimming pool.
This stuff works great. Follow the directions and with in a couple of weeks it’s gone. Great product.
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$24.99 ($0.78/Fl Oz)
Get it as soon as Friday, May 10
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From the brand
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In The Swim was founded in 1982 by a husband and wife team. Shipping chlorine from the back of their garage and taking orders on their front porch, they began to have a vision that this could be something big.
40 years later, In The Swim remains one of the country's largest online retailers for pool chemicals, supplies and equipment. Thanks for shopping with us!
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Product Description
In The Swim Pool Algaecide 50
In the Swim Black Pool Algaecide is specifically formulated with 11.8% copper sulphate pentahydrate to kill and suppress the appearance of black algae. Black algae is known to be resistant to treatment and brushing. In the Swim Black Pool Algaecide is a potent and effective formula helping to clear black algae blooms fast.
Before adding In The Swim Black Pool Algaecide, brush your pool, clean or backwash your filter, empty skimmer and pump baskets, and turn on the main circulation pump. Super chlorinate according to water volume and interior type to build a chlorine residual. In The Swim Black Pool Algaecide can be a treatment or maintenance algaecide. It is important to act when you see the first signs of black algae. Black or blue-green spots and patches with raised heads. Shock the pool 24 hours before treatment. Treat with 16 ounces Black Algaecide per 10,000 gallons.
Mix with 9 parts of water in a chemical safe container then pour around the perimeter of the pool. The spots and patches are only the top of the algae, with its roots in the pool. Unless you kill the root, black algae will pop up again once the conditions are right. Brush with wire or nylon bristle brush to remove the top and allow Black Algaecide to work. Stubborn algae may need many treatments.
NOTE: This item cannot be shipped to the District of Columbia, Idaho, Montana, North Dakota, Rhode Island, South Dakota, Utah, Vermont, Alaska or Hawaii. If your shipping address is in DC, ID, MT, ND, RI, SD, UT, VT, AK or HI, this item will be removed from your order.
Goodbye Algae!
- Initial Dosage: 16 ounces per 10,000 gallons at the onset of black spots or patches
- Shock and brushing strongly suggested
- Non-clouding and non-foaming formula
- Black algae typical found in concrete, plaster, or gunite pools because they’re porous surfaces
- NOTE: Unable to ship this item to DC, ID, MT, ND, RI, SD, UT, VT, AK or HI due to State Restrictions
In The Swim's Recommended Pool Care
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Pool Care and MaintenanceIt is important to maintain your pool/spa to keep it clean and healthy all year round. Good habits, such as cleaning your filter or emptying your skimmer basket, will ensure that your investment is protected for years to come. But most importantly, you and your family will be able to enjoy the swimming pool or spa each season. |
Water TestingTesting the water weekly or bi-weekly, depending on use and outside variables, helps keep your pool/spa water healthy. Utilizing a DPD or OTO reagent-based water test kit, test strips, or digital testing will help you monitor the pool or spa water chemistry. |
Adjusting and BalancingAdjusting and balancing your pool or spa water chemistry ensures that you will get the most out of the swimming season. The benefit of having good pH and Alkalinity levels is that it will increase the ability of your main sanitizer to kill bacteria. Balanced pool water chemistry will also reduce chemical and maintenance costs. Balanced pH and alkalinity help prevent corrosion and scale formation on the interior pool surface and surrounding equipment. |
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SanitizingThere are many different types of sanitizers used in various pool and spa environments. Clean and healthy water starts by establishing a proper residual chlorine level with shock or concentrated granular chlorine. The most common way to maintain a proper chlorine level is by using trichlor chlorine tablets in either a floater or chemical feeder. Applying these steps to your normal maintenance plan will ensure the elimination of non-living organic contaminants, bacteria, micro organisms, and algae making your water safe to enjoy. |
Pool Fun and SafetyNow that the water is properly balanced and sanitized, it’s time to get in there and have some fun! We recommend enhancing your outdoor living environment with games, floats or loungers, toys, and accessories. Get creative! Safety is of the utmost importance, and there are many ways to help make your pool/spa safer. Having a life ring buoy, a shepherd's hook, depth markers, coast guard-approved life preservers, door and water alarms and having your local aquatic environment safety regulations on-hand will ensure a fun and safe environment for your family. |
TreatmentEven after all your preparation, sometimes life happens and your pool or spa can get away from you. In those moments, we need to start back from the beginning with testing of the water. Now that you have a clear idea of the current readings, your next steps will depend on the type of symptoms your water is presenting. This may include an issue such as algae (green, yellow, black, etc.), cloudiness, living organics, debris, and other water conditions. |
Compare with similar items
This Item  In The Swim Black Algaecide – Eradicates Black Algae in Swimming Pools - Copper Sulfate Pentahydrate - 1 Quart |  |  |  |  |  | |
| Price | $24.99 | $25.20 | $41.99 | $49.98 | -28% $32.30 List: $44.99 | $69.26 |
| Delivery | Get it as soon as Friday, May 10 | — | Get it May 13 - 15 | Get it as soon as Tuesday, May 14 | Get it as soon as Tuesday, May 14 | Get it May 13 - 14 |
| Customer Ratings | ||||||
| Easy to use | ||||||
| Value for money | ||||||
| Scent | ||||||
| Sold By | In The Swim Pool Supplies | In The Swim Pool Supplies | STAR FAST | Doheny's Pool Supplies Fast | Amazon.com | Doheny's Pool Supplies Fast |
| form | — | Foam | Granular | — | Tablet | — |
| weight | 2.58 pounds | 2.14 pounds | 2 pounds | — | — | — |
Reviews with images
It made it worse
Worse after I put it in.so now we have to have a company drain an fill back up
