![]() ![]() We recommend In the Swim Sodium Di-Chlor product because it contains 99 percent sodium di-chlor, with 56 percent available chlorine. We like sodium di-chlor products because, generally, they are easy to use, dissolve fast, and don't alter the pH balance of your pool. Type: Granule | Amount: 24 pounds | Chlorine Level: 65 percent | Dissolve Time: Not applicable The granules can dissolve slowly, so you may need to use a brush to scrub the pool floor to keep the product from settling and causing discoloration, especially on vinyl, fiberglass, or painted pool surfaces. Since this is a chlorine shock treatment, you must dissolve the product in a bucket of water before adding it to your pool water and ensure that the pump is running. To use DryTec pool shock, you need a 1-pound pouch for every 10,000 gallons of water. Plus, it contains no stabilizer, so it shouldn't contribute to a buildup of cyanuric acid, which can render the chlorine in your swimming pool ineffective. DryTec Shock Treatment is a great option to consider if you want a granular pool shock. Most commonly referred to as cal-hypo shock, it’s a popular pick because of its ease of use and affordability. Type: Liquid | Amount: 4 gallons | Chlorine Level: 12.5 percent | Dissolve Time: Not applicableĬalcium hypochlorite is often used as an active ingredient in pool shock formulas. Some people avoid liquid pool shock for this reason, but it’s very affordable and readily available if you don’t mind taking extra precautions. This liquid pool shock has 12.5 percent of sodium hypochlorite (a form of chlorine) for maintaining your pool water or closing it at the end of the season. It shouldn't cause cloudy water when used according to the manufacturer’s instructions and shouldn't cause a buildup of scale or CYA.īefore you uncap this liquid pool shock, keep in mind that the liquid can bleach your clothes or other surfaces if you accidentally spill it. You have your choice of pouring it directly into the pool or distributing it through a dosing pool pump. It is ready-to-use, meaning you don’t have to do any poolside mixing before treating your water. If you go this route, we recommend Champion Pool Shock. Liquid chlorine is a simple and economical way to shock your pool. Type: Granule | Amount: 12 pounds | Chlorine Level: 39 percent | Dissolve Time: 15 minutes Be prepared to roll up your sleeves as well, since the manufacturer recommends that prior to application, you brush pool surfaces that have algae growth while the pool filter and pump are running. However, for algae treatment, you need to let the product work for as long as 24 hours, then reapply it 72 hours later in cases of stubborn growth. You can re-enter the pool in as little as 15 minutes following standard shock treatment, after ensuring the chlorine level is 1 to 4 parts per million. The recommended amount is 1 pound of product for every 12,000 gallons, making it more economical compared to other pool shocks that only treat 10,000 gallons per pound. This granule pool shock contains algae-fighting crystals and effectively targets common types of pool algae including black, green, and mustard varieties. ![]() Since this pool shock uses a stabilized form of chlorine, it may increase CYA levels. Clorox Pool & Spa XtraBlue Shock is an effective and popular treatment option that targets common algae species while eliminating bacteria and chloramines. Type: Granule | Amount: 12 pounds | Chlorine level: Not applicable | Dissolve time: 24 hoursĪn algae bloom is one reason why you may need to use pool shock, since pool algae can grow quickly, leaving a furry trail of green, black, or yellow slime on the surface of your pool steps or in the corners-basically anywhere water circulation may be more limited. The dissolve time can take up to 24 hours, but testing your pool’s water chemistry is the easiest way to know when it’s safe to swim again. You should use a pool brush to fully dissolve any granules that settle at the bottom of the pool. Nevertheless, you need to monitor your water for calcium hardness, as high levels can lead to scale on your pool's walls, steps, and water features.ĭosing and applying HTH Pool Care Shock Advanced is simple since each 1-pound pouch of granules treats 13,500 gallons of water. It's worth noting that this particular formula doesn't contain cyanuric acid (CYA), which can cause chlorine lock. Depending on your water chemistry, we recommend this pool shock because it can be used in chlorine, saltwater, and bromine pools, and it contributes to clear water while eliminating chloramines, bacteria, and algae. This popular pool shock treatment uses calcium hypochlorite (cal-hypo), a bleaching agent and disinfectant. Keep your water safe and swim-ready with the help of HTH Pool Care Shock Advanced. The Spruce Home Improvement Review Board. ![]()
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