Pool Shock | Chlorine, Cal-Hypo & Non-Chlorine Shock

Pool shock is essential for keeping your swimming pool clean, clear, and safe. Whether you need chlorine pool shock to kill bacteria or a non-chlorine oxidizer to remove contaminants, the right pool shock treatment restores water clarity fast.

At Benchmark Pool Supply, we offer a full selection of pool shock chemicals including cal-hypo shock, dichlor shock, and chlorine-free shock options. If you're looking for the best pool shock for algae, cloudy water, or routine maintenance, you’ll find the right solution here.

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14 products

Poolife 22405 TurboShock Cal-Hypo Pool Shock 1 lb genuine OEM pool chemical treatment
Regular price $8.95 Sale price$10.99
Poolife 22405 TurboShock Cal-Hypo Pool Shock 1 lb
-19%
Poolife TurboShock Cal-Hypo Pool Shock 5 lb bag for genuine OEM pool chemical treatment
Regular price $44.95 Sale price$48.95
Poolife TurboShock Cal-Hypo Pool Shock 5 lb
-8%
GLB Dichlor Pool Shock 1 lb – Stabilized Chlorine granular pool chemical from Benchmark Pool Supply
Regular price $8.95 Sale price$12.99
GLB Dichlor Pool Shock 1 lb – Stabilized Chlorine
-31%
Poolife Rapid Shock 1 lb Pool Shock chemical for pool maintenance and genuine OEM parts
GLB SuperSonic Pool Shock 1 lb pool chemical by GLB for genuine OEM pool equipment care
Regular price $8.95 Sale price$9.99
GLB SuperSonic Pool Shock 1 lb
Sold Out -10%
Poolife Back to Blue Pool Recovery Treatment 2 lb pool chemical for OEM pool equipment
Regular price $44.95 Sale price$49.99
Poolife Back to Blue Pool Recovery Treatment 2 lb
-10%
Applied Bio Power Blast Cal-Hypo Pool Shock 40710 by Applied Biochemist for pool maintenance
Regular price $369.95 Sale price$449.99
Applied Bio Power Blast Cal-Hypo Pool Shock 40710
Sold Out -18%
Poolife Active Cleaning Chlorinating Granules 100 lb container for pool chemical sanitizing
Regular price $419.99 Sale price$699.99
Poolife Active Cleaning Chlorinating Granules 100 lb
Sold Out -40%
GLB Super Sonic Pool Shock – 5 lb bottle for pool chemical treatment by Benchmark Pool Supply
Regular price $46.95 Sale price$48.95
GLB Super Sonic Pool Shock – 5 lb
Sold Out -4%

Revitalize Your Pool with Powerful Pool Shock Treatments

Even with regular sanitization, your pool water is constantly exposed to contaminants — sweat, body oils, cosmetics, pollen, rainwater, and other organic material. Over time, these impurities overwhelm chlorine and leave your water looking dull, cloudy, or even green. That’s where pool shock treatments come in.

At Benchmark Pool Supply, we carry a full range of pool shock chemicals designed to oxidize organic waste, kill bacteria, and restore your water to sparkling clarity. Whether you need a quick chlorine boost after heavy use, a weekly routine treatment, or a chlorine-free option, our shock products help you maintain a safe and inviting swimming environment.

Boost your sanitation routine with Sanitizers, improve clarity with Clarifiers, and prevent algae growth with Algaecides or Phosphate Removers


Why Shock Your Pool? (Benefits of Pool Shock Treatments)

Eliminate Contaminants – Breaks down sweat, oils, sunscreen, and organic matter chlorine struggles to remove.

Destroy Chloramines – Gets rid of combined chlorine that causes strong odors and eye irritation.

Clear Cloudy Water – Restores water brilliance and sparkle.

Boost Sanitizer Power – Resets chlorine effectiveness.

Prevent Algae Growth – Helps stop algae outbreaks before they spread.


Types of Pool Shock Treatments (Cal-Hypo, Dichlor & Chlorine-Free Shock)

1. Cal-Hypo Shock (Calcium Hypochlorite)

Powerful chlorine-based oxidizer.

Ideal for weekly use and heavy cleanup.

Adds calcium while treating water.


2. Dichlor Shock (Sodium Dichloro-S-Triazinetrione)

Stabilized chlorine shock with built-in UV protection.

Dissolves quickly with minimal effect on pH.

Great for outdoor pools exposed to sunlight.


3. Multi-Purpose Shock

Combines sanitizing, clarifying, and algae control.

Convenient all-in-one solution for busy pool owners.


4. Chlorine-Free Shock (Potassium Monopersulfate)

Non-chlorine oxidizer safe for swimming shortly after use.

Perfect for spas, indoor pools, and those with chlorine sensitivities.

Eliminates odors and restores sparkle without affecting chlorine levels.


When to Shock Your Pool (How Often to Shock a Pool)

Weekly Maintenance – A regular shock keeps water safe and crystal clear.

After Heavy Pool Use – Parties, gatherings, and frequent swimmers introduce more contaminants.

After Rain or Storms – Runoff and debris can unbalance your water.

When Water Looks Cloudy – Shock treatments restore clarity and eliminate hidden waste.

Following Algae Treatment – Helps eliminate dead algae particles.

Seasonal Pool Opening & Closing – Start and finish each season with a clean, safe pool.


How to Use Pool Shock Safely (How to Shock a Pool Correctly)

Test Water First – Know your chlorine and pH levels before shocking.

Pre-Dissolve (If Required) – Some shocks should be dissolved in water before adding.

Add at Dusk or Night – Sunlight reduces chlorine effectiveness, so shock in the evening.

Run the Pump Overnight – Circulation helps distribute the shock evenly.

Wait Before Swimming – Follow label directions for safe re-entry times.


Benefits of Regular Pool Shock Treatments

Safer Swimming Environment – Removes harmful bacteria and contaminants.

Improved Comfort – Eliminates odors and reduces eye and skin irritation.

Enhanced Chemical Efficiency – Keeps chlorine working effectively.

Clearer Water – Restores sparkle and improves overall water clarity.

Peace of Mind – Regular shocks ensure your pool is always ready for family and guests.


Best Pool Shock for Common Pool Problems

  • Best pool shock for algae: Cal-hypo shock for powerful algae elimination
  • Best pool shock for cloudy water: Dichlor or fast-dissolving shock for quick clarity
  • Best pool shock for saltwater pools: Non-chlorine shock or occasional cal-hypo boost
  • Best pool shock for routine use: Multi-purpose shock for weekly maintenance

Why Buy Pool Shock from Benchmark Pool Supply? (Trusted Pool Shock Chemicals)

Wide Selection – Cal-hypo, dichlor, multi-purpose, and chlorine-free options.

Trusted Brands – Poolife® and other leading pool chemical manufacturers.

Expert Advice – Our team helps match the right shock to your needs.

Affordable Pricing – Cost-effective solutions for every pool type.

Fast Shipping Nationwide – Get your shock treatments quickly.


FAQ – Pool Shock Treatments

Q: How often should I shock my pool?

A: Weekly shocking is recommended during the swim season, plus after heavy use, storms, or cloudy water.


Q: Can I swim right after shocking?

A: It depends on the product. Chlorine shocks typically require 8–24 hours, while chlorine-free shocks may allow swimming in as little as 15 minutes.


Q: Is chlorine-free shock effective?

A: Yes, chlorine-free shocks are powerful oxidizers that remove waste and restore water clarity without raising chlorine levels.


Q: Will shocking my pool affect pH or alkalinity?

A: Some shocks can temporarily raise or lower pH. Always retest your water after shocking.


Q: Do I need to shock a saltwater pool?

A: Yes. Saltwater generators maintain chlorine, but shocks are still needed for heavy use, storms, or problem solving.


Q: Can I use pool shock in a spa or hot tub?

A: Yes, but use chlorine-free or spa-specific shocks for smaller water volumes.


Q: What is the best pool shock for cloudy water?

A: The best pool shock for cloudy water is a fast-dissolving chlorine shock like dichlor or cal-hypo, which quickly oxidizes contaminants and restores water clarity.


Q: Can you put too much shock in a pool?

A: Yes, adding too much pool shock can raise chlorine levels too high and make the water unsafe. Always follow label directions and test your water after shocking.