Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock

Shock treatment for swimming pools - HTH Extra Super Shock

$73.99
$73.99
0% off
$73.99

Super Shock HTH Extra is a powerful shock treatment designed to quickly restore the water quality of your pool. Its concentrated formula works effectively to eliminate bacteria, algae, and organic contaminants, while helping to maintain clear and healthy water.

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SKU: 18066
Format: 6 KG

Availability

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Super Shock HTH Extra is a powerful shock treatment designed to quickly restore the water quality of your pool. Its concentrated formula works effectively to eliminate bacteria, algae, and organic contaminants, while helping to maintain clear and healthy water.

Features

  • Powerful shock treatment for swimming pools
  • Effectively eliminates bacteria, algae and organic contaminants
  • Helps quickly restore clear, crystal-clear water
  • Can be added directly to the pool without prior dissolution
  • Suitable for regular maintenance or superchlorination
  • Suitable even for treatments during the winter season
  • 6 kg or 15 kg format
  • Type: Chlorine shock treatment
  • Format: available in 6 kg and 15 kg
  • Application: Can be added directly to the pool water
  • Compatibility: above-ground and in-ground pools
  • Use: shock treatment or superchlorination of water
Main Actions: Disinfect, Shock treatment
Product Category: Shock Treatments
Dissolution: Fast
Forms: Granules
Application Method: To pour directly into the water
Usage Period: Weekly
Visual Issues: Cloudy water
Water Balance: Chlorine too low
Safety and Storage: Store in a cool, dry place, Avoid contact with skin, Protect eyes, Keep out of reach of children and animals, Follow the manufacturer's instructions
Chlorine Stabilization: Non-stabilized
Basin Type: Pool

Precautions and first aid

DANGER – POISON – CORROSIVE. Contents may be harmful and cause burns. Fumes and dust may be harmful and become hazardous when mixed with other products. Do not breathe dust or fumes. Do not swallow. Avoid contact with eyes, skin, or clothing. Do not mix with other chemicals. Use only in a well-ventilated area. Keep out of reach of children. Read label before use. Use all of the contents after opening. This container is not child-resistant.

In case of contact with skin or eyes, rinse thoroughly with water for several minutes. In case of ingestion or significant exposure, seek immediate medical attention.
Delivery is free for chemicals and small accessories with purchases of $50 or more. A $10 fee applies to orders under $50. We deliver quickly across Canada for this item.

Add the recommended amount based on the pool's volume to quickly restore water quality. Distribute the product directly onto the water's surface while the filtration system is running to ensure proper distribution.

Use as needed when the water becomes cloudy, after intensive use of the pool or when algae are present in order to maintain clear and well-disinfected water.

Key Characteristics

Elimination

Product designed to effectively destroy algae and ensure healthy and safe water.

Simple to use

No premixing is necessary: ​​the product can be added directly to the pool water.

Power

Powerful shock treatment designed to quickly eliminate contaminants

Treatment time

Processing time: 1 hour

Compare options

Shock treatment for swimming pools - Shock
Shock treatment for swimming pools - Shock
Chlorine-based shock treatment for pool water. The stabilized chlorine formula provides effective water disinfection and destroys bacteria and algae. Its neutral pH formula protects the chlorine from the sun's ultraviolet rays.
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  • 70% chlorine available – Chlorine shock treatment to disinfect pool water.
  • Fast acting – Eliminates bacteria, algae and organic contaminants present in water.
  • Helps restore water clarity – Helps restore clearer water after an imbalance.
  • Granule format – Fast dissolving product to be pre-dissolved in a bucket of water before adding to the pool.
  • Versatile use – Can be used for shock treatment or when water is cloudy.
$7.99
$7.99
$7.99
Shock treatment for swimming pools - HTH Extra Super Shock
Shock treatment for swimming pools - HTH Extra Super Shock
Super Shock HTH Extra is a powerful shock treatment designed to quickly restore the water quality of your pool. Its concentrated formula works effectively to eliminate bacteria, algae, and organic contaminants, while helping to maintain clear and healthy water.
Read more Read less
  • Chlorine shock treatment – ​​Disinfects pool water and eliminates contaminants.
  • Fast acting – Eliminates bacteria, algae and organic contaminants present in water.
  • Helps improve water clarity – Helps restore clearer water after an imbalance.
  • Simple application – Can be added directly to the pool without prior dissolution.
  • Versatile use – Can be used for regular maintenance or for superchlorination.

Additional details

  • Available sizes: 6 kg and 15 kg
$73.99
$73.99
$73.99
Shock treatment in pre-measured sachets for Impact + swimming pools
Shock treatment in pre-measured sachets for Impact + swimming pools
Impact+ is a shock treatment in pre-measured sachets designed to simplify your pool maintenance while ensuring maximum effectiveness. Its formula works quickly to eliminate contaminants and help maintain clear, well-disinfected water.
Read more Read less
  • Powerful shock treatment – ​​Quickly eliminates organic contaminants, bacteria and algae to restore clean and safe pool water.
  • Fast acting – Formula designed to act quickly and improve water quality after cloudy water or heavy pool use.
  • Helps restore water clarity – Helps restore clear and well-disinfected water.
  • Very practical format – Resealable pre-measured 400g bags allowing for precise dosing and safer handling.
  • Multipurpose treatment – ​​Suitable for regular maintenance or for shock treatment when required.

Additional details

  • Format: 10 kg (25 sachets of 400 g)
  • Packaging: individual resealable bags to limit direct contact with the product.
$68.99
$68.99
$68.99

Discover our product line

See all

Pool shock treatment is a versatile product used for both regular maintenance and to correct certain water problems. It helps eliminate contaminants, clarify water, and quickly increase chlorine or bromine levels to maintain clean, well-disinfected water.

Shock treatment can be used in several situations:

  • Regular maintenance: helps eliminate contaminants and maintain clean water
  • Visual problems: clarifies cloudy water and helps correct early-stage algae
  • Disinfectant boost: quickly raises disinfectant levels

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When, why and how to perform shock treatment in a swimming pool?

Shock treatment is used to clean pool water by removing chloramines (the harmful chlorine responsible for odors and irritations) while helping to keep the water clear. It generally contains stabilized chlorine, an oxidant, and a clarifying agent.

Generally, it's used once a week, or more often during heat waves, heavy swimming, or if the chlorine level is low. The video shows two examples: Smart Shock and Shine, which are added directly to the water for fast action.

NEED HELP?

Pool maintenance guide

Learn how to master the essential steps to maintain your pool throughout the summer and enjoy clean, healthy water. To go further, check out our complete pool maintenance guide or sign up for our online courses to simplify your routine and adopt best practices.

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Tips and advice

Quand, pourquoi et comment faire un traitement choc
When, why and how to do a shock treatment
When, how and why use the famous shock treatment: this is what we’ll talk about today, starting by demystifying the shock treatment.  In both cases, whether you’re using a packet of Brillance or Smart Shock, it contains stabilized neutral chlorine to which an oxidizer has been added to destroy the chloramines in the pool water.  The chloramine is bad chlorine; it gives a strong chlorine smell to the water or make your eyes burn when you swim.  A clarifier is also added to ensure that the water remains clean and clear. Ideally, you should use it weekly. This way, you’ll prevent algae from building up or forming. It will also kill the chloramines and prevent that the water becomes cloudy.  You may also have to use it more often, so be more vigilant in case of a heat wave when the temperature rises for several days or if you have several bathers in the pool. You may also have to increase it simply because the level is low. To do this, sprinkle a packet of Smart Shock or Brillance around the pool or directly in front of the water return to ensure product disperses quickly.  This way, you’ll enjoy a clean and safe water to swim. 
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Read our advice

FAQ



If the pool remains green after a shock treatment, it's often due to one of the following situations: the shock treatment wasn't strong enough for the amount of algae present, the pH was too high (making chlorine almost ineffective), the filter is saturated and can no longer trap particles, or there are high phosphate levels that feed the algae. In this case, you should: adjust the pH, perform a stronger shock treatment, thoroughly brush the pool, and clean the filter. Sometimes, a clarifier or phosphate remover treatment is necessary to complete the cleaning.



Dissolve the shock chlorine in a bucket of water before adding it to the pool to avoid damaging the liner or coating. Pour the solution all around the pool, keeping the pump running. If you are using a chlorine-free (oxidizing) shock treatment, add it directly to the water according to the manufacturer's instructions. Avoid shock treatment in direct sunlight to prevent loss of effectiveness.



After shocking the system, let the filtration run continuously until the water becomes clear. Brush the walls and bottom to loosen any algae, then clean or rinse the filter, as it accumulates a lot of debris during this process. Next, test the chlorine and pH levels to rebalance the water if necessary. Proper filter maintenance is essential for quick and lasting results.



Shock treatment usually takes effect within a few hours, but you should expect12 to 24 hoursto restore the water to its original clear state. If the water was very green or cloudy, this can take up to48 to 72 hourswith continuous filtration. Always wait until the chlorine level drops below5 ppmbefore swimming.



To perform a shock treatment, first check that the pH is between 7.2 and 7.6 for the product to be fully effective. Then dissolve the recommended amount of shock chlorine in a bucket of water and pour the solution around the perimeter of the pool with the pump running. If the product is in sachets, pour the sachet directly around the perimeter of the pool. Let the filter run continuously to ensure the product is well dispersed. Shock treatment eliminates algae, oxidants, chloramines, and organic contaminants that accumulate in the water.


A pool shock treatment should be performed approximately once every 1 to 2 weeks during the swimming season. It is also recommended to perform it after a storm, heavy pool use, or if the water turns green or cloudy. Proper pH balance before treatment ensures maximum effectiveness.
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