Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is widely regarded as an effective and user-friendly pool shock treatment that quickly clears up cloudy or algae-filled water, leaving it crystal clear. Customers praise the easy-to-use bottle design compared to traditional shock in bags, allowing for simple and mess-free application. The product works well across a variety of pool types and sizes, helping maintain clean, sparkling water with regular use. While a few customers experienced issues with undissolved material or the product not being as strong as other shock treatments, the majority report reliable performance and quality.
Customer review summary generated by AI, including incentivized reviews.Pool shock
Would RecommendGood price and easy to use - recommended.
Sweepstakes
Chlorine dissapates overnight
Would Not RecommendI've been using the Clorox shock plus bags for years in my above ground pool (approx 1200 gallons) with excellent results. Using the same amount from these plastic containers, the chorine level is back to zero the next day. The pool is in the same covered area with the same water level as before. I puchased a gallon of liquid pood chlorine to supplent the remaining Shock plus, then will switch to anpther brand.
Pool Shock
Would RecommendWe have a 40 x 20 inground pool. I add 2 bottles every other day. Keeps the pool clear
BUY THIS, NOT THE 6-IN-1 VERSION
Would RecommendThis product does everything you expect pool shock to do. I have tried this 4-in-1 type and the (more expensive) 6-in-1 version, and this product does absolutely EVERYTHING that the 6-in-1 does. The extra cost for the 6-in-1 version is a complete waste of money.
Great shock
Would RecommendThis is a very fast dissolving shock. Just sprinkle it around the deep end of your pool and it dissolves before any particles get to the bottom!
Chlorine shock
Would RecommendThis product does what it says.
Verified Purchaser
This item does not dissolve in water very well. I like to dissolve my pool chemicals prior to putting them in. I have a vinyl liner and I prefer to keep granular chlorine from sitting on the liner to help prevent damage.
Verified Purchaser
Shock treatment for the pool
Would RecommendI prefer this product over the standard thin plastic bag that many other chlorine crystals come in. The big plus is the container itself, it is sturdy with a screw on cap. The thin plastic bags become brittle over time during extreme temp changes and easily crack or tear.
Verified Purchaser
Excellent product
One container gave chlorine coverage for my 8,000 gal pool. Followed directions, chlorine levels accurate.
Verified Purchaser
misleading product
Would Not Recommendproduct is not a shock it does not kill bacteria when i bought your product i thought i was getting shock like hth shock which kills bacteria now i must go return it
From Clorox-Pool
great product
Would RecommendI quit buying my pool stuff at leslie's pool supply. get better products for cheaper.
We put 10 bottles in our pool when opening it this year. It did not do ANYTHING.
Hi Gail, We are the manufacturer of Clorox Pool and Spa products. If you would like help troubleshooting your pool problem, please give us a call at ...

Know your Cyanuric Acid (CYA) level before use!
Would Not RecommendThis contains sodium dichloro-s-triazinetrione to shock your pool and is effect at that task. However it will raise your Cyanuric Acid (CYA) levels. The higher your CYA levels, the more free chlorine you need in the pool to be just as effective. By using this product on a routine bases, CYA and the amount of free chlorine you need begin to run away higher and higher. It happened to me with this product - when you get to that point, a.k.a. "chlorine lock", you will need to drain your pool and ref...
Hi Gary, We are the manufacturer of Clorox Pool and Spa products. Terms such as ‘chlorine-lock’ or ‘overstabilization’ are dated concepts, have been ...

Shock
Would RecommendProduct works well, convient to use and priced fairly.
Verified Purchaser
Easy pour, Love it
Would RecommendNo messy packs to open...great idea with this easy pour. Does the trick!
Verified Purchaser
Shock Plus
Would RecommendWe began using this product four years ago after not being happy with the results liquid chlorine was giving us. This product works much better and we have been using it ever since. It's as simple as adding one bottle into our pool per week and it stays beautiful.
From Clorox-Pool

Hi, We are the manufacturer of Clorox Pool and Spa products. You may need a higher level of chlorine added to the pool. If you have any other questio...