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Blast Chlorine Free Pool Shock - 25lb by Swim Clear
product #3984

Blast Chlorine Free Pool Shock - 25lb

by Swim Clear
List price: $199.99  
You save 25%


Non Chlorine Swimming Pool Shock For Above Ground or Inground Pools - Your Pool Supplies Heaquarters!

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Product Details

25 lb Blast  - Non Chlorine Pool Shock

The best way to keep your swimming pool free from algae and bacteria and looking and feeling crystal clear is to shock it once a week with Blast. This chlorine free pool shock revitalizes the existing chlorine and allows you to swim right away, instead of having to wait long periods of time as with gallon jugs of liquid chlorine. This year, make pool maintenance easy and experience clean water all summer long. Make sure to keep your alkalinity and pH in line and keep your chlorine residual at the recommended level. Feel free to give us a call with any pool supply questions or watch any of our pool school videos online.

Available Quantities 5 lbs,  25 lbs,  8 x 1 lb. bags View All Pool Shock

Description: Sodium Peroxydisulfate / Chlorine Free Pool Shock

Function:  Weekly pool shock. Pool Sanitizer / Oxidizing agent. Designed to dissolve quickly and reactivate dormant chlorine. Takes used up or dead chlorine and turns it back into good chlorine.


  • No waiting period to swim
  • 100% Chlorine Free
  • Weekly pool shock
  • Extends the life of your pool's chlorine
  • Recycles bad chlorine cells into good chlorine
  • Does not add calcium to the pool
  • Dissolves quickly without leaving a residue
  • Easy to use


  • 1lb. / 10,000 - Weekly
  • Add to skimmer, in front of return jet or throughout pool evenly


  • Great pool chemical to use after heavy rains
  • Maintain the pool's free chlorine level between 1-2 ppm
  • In pools chlorine works best when pH and alkalinity are balanced
  • Use caution when handling swimming pool chlorine


Swim Clear

Shipping 25lb, 5lb, 8x1lb

Function Shock / Oxidizer

PPM Chlorine 1-2

Start-Up 1lb / 10K gal

Maintenance 1lb / 10K gal

Wait to Swim 15 Minutes

Shelf Life No

Substitute No

Use Swimming Pools

Application Skimmer

FedEx / ups Yes

Online Item Yes

In Store Item Yes

Videos & Resources

What is Blast?
Pool School with Mike the Pool Guy


Free Shipping

For online orders over $40 (before tax), shipping and handling is FREE. Orders that are under $40 will have a $5.99 shipping fee added. Most pool supplies ship via Fed Ex and delivery times within the Continental U.S range from 2-5 days. All orders received before noon will ship that SAME DAY.
Shipping Details & Conditions.



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