Leslie's - Power Powder Pro 73% Calcium Hypochlorite Pool Shock - 50 lbs.

When you have an algae bloom or need to treat other pool problems, look no further than Leslie's Power Powder Pro 73 Cal-Hypo Pool Shock. With 73% Calcium Hypochlorite active ingredient and a minimum of 70% available chlorine, it's the strongest pool shock available. Power Powder Pro is known as a solution shock as it destroys algae blooms and organic as well as inorganic contaminants. Power Powder Pro 73 Calcium Hypochlorite Pool Shock is also great for weekly maintenance to super chlorinate and give your chlorine levels a quick boost when you need it. Whether you're using Power Powder Pro 73 as a treatment or maintenance pool shock, it's extremely effective at keeping pool water sanitized and safe for swimming.

Active Ingredient: 73% Calcium Hypochlorite

Power Powder Pro 73 Pool Shock has the highest percentage of Calcium Hypochlorite available for a super strength and concentrated pool shock. Some other pool shocks have a lower percentage of active ingredient with a higher percentage of inert ingredients which reduce the amount of chlorine sanitizer that is ultimately added to your pool.

70% Minimum Available Chlorine

With Power Powder Pro 73, you get at least 70% available chlorine to kill and inactivate algae spores, bacteria, germs, and other water contaminants. Don't settle for anything less when looking for a pool shock to effectively treat pool problems like algae blooms and swimming accidents fast. As the chlorine dissolves in the water, it forms hypochlorous acid which is what kills and eradicates algae and bacteria.

Low Residue & Fast Dissolving

Fast acting and dissolving, Power Powder Pro 73 works quickly to kill algae and bacteria without leaving any noticeable residue behind. Even though it is a calcium based granular chlorinated shock, it won't significantly increase calcium hardness levels in the pool water. Power Powder Pro 73 Calcium Hypochlorite chlorine shock works fast to eliminate contaminants currently in the water while preventing future potential algae growth.

Please Note: Depending on water chemistry levels such as high pH and Calcium Hardness, Cal-Hypo shock can cause possible turbidity or clouding of the water when added. This will normally clear up on its own.

Non-Stabilized Chlorine Pool Shock

There is no stabilizer or conditioner in Power Powder Pro Cal-Hypo Pool Shock so adding it will not raise cyanuric acid (CyA) levels in the pool water if they are already elevated. With this in mind, it's best to add during evening hours while the filter pump is running to reduce UV degradation from the sun.

Leslie's Power Powder Pro 73 Cal-Hypo Pool Shock

To get rid of the toughest of algae and solve other pool problems fast, look no further than Leslie's Power Powder Pro 73. The highest percentage of Calcium Hypochlorite active ingredient to destroy organic contaminants, kill bacteria and control algae. At Leslie's, We Know Pools, and we are your best source for the strongest Calcium Hypochlorite chlorine pool shock.

Usage Directions for Swimming Pools:

• Add the recommended dosage of Leslie's Power Powder Pro 73 during the evening hours while the filter pump is running.
• When adding to your pool, broadcast evenly over a wide area in the deepest part of the pool. Use a clean, dry scoop to measure this product. Do not use the scoop for any other purpose. If any granules settle to the bottom of the pool, use a brush to disperse.
• For unstablized pools add 5-7 ounces of Leslie's Power Powder Pro per 10,000 gallons of pool water daily or as often as needed to maintain the free available chlorine residual at 1-4 ppm.
• For stabilized pools using Leslie's stabilizer and conditioner, add 3-5 ounces of Leslie's Power Powder Pro per 10,000 gallons of pool water every other day or as often as needed, to maintain the free available chlorine residual at 1-4 ppm.
• The quantity may vary based upon bather load, water temperature and other conditions. If any granules settle to the bottom of the pool, use a brush to disperse.

Not available for sale to South Dakota.

Note: If purchased in a Leslie's retail store, this product may be substituted with an identical version of the item with different packaginga.