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Maintain a Clean Pool

Crystal clear water starts with pool shock. Shocking your pool water helps to remove contaminants that may cause cloudy water and algae. Apply a pool shock treatment weekly as part of a regular maintenance routine.  

Maintain a regular cleaning regimen. Skim water surface, brush walls, vacuum and empty skimmer baskets at least once per week.

Test and balance your pool water weekly. Your test results will tell you if your water parameters are unbalanced. If needed, apply the appropriate products to restore balance. Download the Clorox® Pool app on Apple App Store or Google Play for expert water analysis and product and dosage recommendations.

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Product reviews

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Super Good Shock

Got this last year and just now got to use it Very Good Product. Worked over night. Will buy again
Ease of Use: 5 Effectiveness: 5
07/30/2018
HunterandCalliGrandpa
Texas state

Ease of Use: 5 Effectiveness: 5
07/26/2018
AxiSyn
Texas state

Works very good

keeps pool clean, easy to use, will definitely use again
Ease of Use: 5 Effectiveness: 5
06/18/2018
Ole_
Texas state

Does the Job

The product does the job. I didn’t find it to be better or worse than any other shock I have used.
Ease of Use: 5 Effectiveness: 4
02/01/2018
ToadOh
Texas state

Pretty good.

I noticed a difference, but I don’t think is a must have as much as the other Clorox Pool&Spa products. I will say this is an enhancer though.
Ease of Use: 5 Effectiveness: 3
09/11/2017
Dame
Texas state

Chlorine Free Shock

This is a fast-acting, chlorine free product for all pools including saltwater pools. It will deliver crystal clear water and kill contaminants such as urine and body oils. I tried it and was impressed that swimmers could enter the pool after only 15 minutes.
Ease of Use: 5 Effectiveness: 5
08/01/2017
AL from Pensacola
Texas state

Good product

A good product for an alternative to chlorine. Will definitely use again.
Ease of Use: 5 Effectiveness: 5
07/17/2017
col31617
Texas state

Clorox chlorine free

I have a chlorine free pool. I used the chlorine free shock instead of my other products, and I am very happy with the results.
Ease of Use: 5 Effectiveness: 5
07/12/2017
Debbie
Texas state

Fantastic

So easy to use. Like the small bottle. Great product
Ease of Use: 5 Effectiveness: 5
07/05/2017
Katiemaggie
Texas state

Best Shock

This is so easy and effective. Best alternative to do Chlorine
Ease of Use: 5 Effectiveness: 5
06/23/2017
Topjwa
Texas state

Seems Okay

We usually use shock that is loaded with chlorine so we were a lit leery about trying this chlorine-free shock. While I can’t say I was completely impressed with the results, but we did use it prior to the grandkids coming for a swim and didn’t worry so much about them swimming soon after application. I can see the need & use for chlorine-free shock but still prefer the “normal” shock on a regular basis. Maybe it’s just my mindset that I need the chlorine to kill germs and algae, but will consider the chlorine-free when the situation calls for it.
Ease of Use: 5 Effectiveness: 3
06/18/2017
KimberleyDE16
Texas state

Great!!

I hate the smell of chlorine. This product does a great job without the over powering smell.
Ease of Use: 5 Effectiveness: 5
06/14/2017
Alysonkelley
Texas state

great product

it was a surprise how good this product worked and made by a great company
Ease of Use: 5 Effectiveness: 5
06/14/2017
burgess88
Texas state

All the Clean with none of the Chlorine

This product is really nice. premeasured containers, with all the cleaning power of Chlorine shock without the smell or feel of Chlorine.
Ease of Use: 5 Effectiveness: 4
06/14/2017
LinzS
Texas state

My Pick

This product is much better than the chlorine version that my family has been using for the last couple of days. It doesn’t have the loud smell of chlorine and seemed to even be a little more gentle on the skin when doing all day summer swims.
Ease of Use: 5 Effectiveness: 5
06/12/2017
momofone
Texas state

Great item!

Product Worked as recommended and easy to use for pool
Ease of Use: 5 Effectiveness: 5
06/10/2017
Michaela
Texas state

Great products

My husband uses these products for our pool. Its stays crystal clear and always readybto swim. They work great!!
Ease of Use: 5 Effectiveness: 5
06/10/2017
Kristallynn24
Texas state

Easy to Use Product

I like that this product is chlorine free and it is easy to use.
Ease of Use: 5 Effectiveness: 4
06/09/2017
Virginia Beach
Texas state

Works great!

I like the OXI Chlorine Free Shock by Clorox. Works as stated. It doesn’t alter the chlorine levels like other shocks. Highly recommend. Trust the Clorox name and brand.
Ease of Use: 4 Effectiveness: 4
06/09/2017
kellbell32
Texas state

Ease of Use: 5 Effectiveness: 5
06/08/2017
Pepp
Texas state

Oxi Shock

Love that this shock dissolves fast and doesn’t just sit at the bottom of the pool!
Ease of Use: 5 Effectiveness: 5
06/02/2017
Whoababy
Texas state

Great product!

I love Clorox pool ‘chlorine free’ products! This is a great product!
Ease of Use: 4 Effectiveness: 4
05/21/2017
mrsbeez217
Texas state

Chlorine free shock

I have only used a small amount of this and from what I have used I seem to be very pleased with keeping my pool maintained.
Ease of Use: 5 Effectiveness: 3
05/17/2017
Sharon
Texas state

Works well without raising the chlorine levels

I like the OXI Chlorine Free Shock by Clorox. Works as stated, and it can be used in Salt Water Pools. Does not alter the chlorine levels like other shocks. Highly recommend. Trust the Clorox name and brand.
Ease of Use: 5 Effectiveness: 5
05/17/2017
OS1411
Texas state

Didn’t seem to clear the pool

I used it per the instructions and it didn’t seem to clear the pool. I can’t say that it was the product’s fault as there may have been other contributing factors.
Ease of Use: 5 Effectiveness: 3
05/09/2017
TPL TN
Texas state

Good shock

Works great but could not tell a difference between the chlorine free and the original
Ease of Use: 5 Effectiveness: 5
05/09/2017
rthompson
Texas state

Good product

Shocks pool well, all with out raising chlorine levels.
Ease of Use: 5 Effectiveness: 4
05/08/2017
Missy1
Texas state

Great Product

Product delivers as advertised. when added to pool it does not affect your free chlorine levels.
Ease of Use: 5 Effectiveness: 5
04/30/2017
Nitehawk
Texas state

Worked well

cleared the water well after I had opened up for season and treated for algae
Ease of Use: 5 Effectiveness: 5
04/28/2017
Mom1
Texas state

So easy to use!

I really like the packaging of this product! I used to use the bagged shock and it was never easy to open. Always had to go track down my scissors. The Clorox shock is in an easy-open bottle that is easy to grasp to scatter the product in the pool. And, it’s recyclable! My pool was green when I opened. Added about five containers of Clorox shock and it cleared right up!
Ease of Use: 5 Effectiveness: 5
04/27/2017
AmyMcK
Texas state

Use once and it’s done!

Clorox Oxidizer is amazing. Used once and it’s done! Keeps my pool crystal clear.
Ease of Use: 5 Effectiveness: 5
04/27/2017
Salsadaddy
Texas state

great pool opening product

used when opening pool. very easy directions. easy handling as well.
Ease of Use: 5 Effectiveness: 4
04/26/2017
robmen
Texas state

Ease of Use: 5 Effectiveness: 5
04/25/2017
Momma bear
Texas state

Fantastic!

Achieved much better than expected results! Water was noticeably clearer overnight and I was able to obtain desired chlorine levels in three days.
Ease of Use: 5 Effectiveness: 5
04/24/2017
jimbo14
Texas state

Oxi Chlorine Free Shock

This product works great. I had a bout with cloudy water and this product made the water sparkling clear.
Ease of Use: 5 Effectiveness: 5
04/23/2017
jimmy
Texas state

Clorox Pool&Spa™ Oxi Chlorine-Free Shock Oxidizer

Shocked my pool when I opened with the Clorox Pool&Spa™ Oxi Chlorine-Free Shock Oxidizer Worked great and does not burn your eyes and soft on your skin.. Excellent Product…..
Ease of Use: 5 Effectiveness:
04/22/2017
johnc375
Texas state

OXI Chlorine-Free Shock Free

Cleared up my cloudy salt water pool overnight. Worked great!
Ease of Use: 5 Effectiveness: 5
04/22/2017
LexingtonSCRick
Texas state

Effective Product

Clarifies water very well. Works as fast as any other one I have used.
Ease of Use: 5 Effectiveness: 4
04/22/2017
Lisahse
Texas state

Highly recommend this product

Product exceeded my expectations. Would recommend this product to anyone with pool!
Ease of Use: 5 Effectiveness: 5
04/20/2017
Missy44
Texas state

Really good and easy!

I live this product! The single bottles are so easy to use and allow for simple maintenance. I can add just the right amount without having to cut bags etc.
Ease of Use: 5 Effectiveness: 5
04/20/2017
Poolman12
Texas state

Easy to handle

PRO – love the easy to use container. Just twist the lid off and done. I once spilled an entire bag of the regular stuff all over me so I really appreciate someone finally came up with a better way to dispense. Seems to work good for what I needed. CONS – one irritation, a bottle treats a 12,500 gallon pool ?!? seems like an odd size and annoying since I have a 10,000 gallon pool. Wouldn’t it be easier to make it a better number like 10k, 500 gals, etc. I did get this free for my honest review but I will probably buy more just for the convenience (except the size!)
Ease of Use: 5 Effectiveness: 5
04/17/2017
JC77
Texas state

Great Spa Product

With this sample, I used it in my spa instead of the pool. It worked great without the chlorine stink!
Ease of Use: 5 Effectiveness: 5
04/14/2017
Willy
Texas state

Love this shock. Love this product. I have a vinyl liner and it doesn’t discolor my line
Ease of Use: 5 Effectiveness: 5
04/13/2017
Jose
Texas state

Working well so far

Have only used two of the six bottles that came with the container, but so far it’s working like magic.
Ease of Use: 5 Effectiveness: 5
04/12/2017
Quailallstar
Texas state

Fabulous product

There wasn’t a know strong odor with this product that what I love about it
Ease of Use: 5 Effectiveness: 5
04/12/2017
Lee9871
Texas state

Super effective!!

This is a great chlorine free shock! We are opening our pool with a new liner, and overdid the initial application of chlorine. The shock does a great job of reducing the free chlorine and also keeps the water super clear. Totally worth it, great alternative to the traditional shock.
Ease of Use: 5 Effectiveness: 5
04/12/2017
SLSear
Texas state

Fantastic!

Clorox OXI “Clorine Free” Shock Oxiidizer definitely gives you clear sparkling water quickly and improves your swimming experience. Love the fact that it is Chlorine free! I use it in a salt pool.
Ease of Use: 5 Effectiveness: 5
04/11/2017
George
Texas state

OXI-clear

After ‘shocking’ pool with chlorine, signs of algae did not change until I add OXI-Shock. I didn’t think water was cloudy until I add OXI, man what a difference!
Ease of Use: 5 Effectiveness: 5
04/11/2017
JRay
Texas state

LOVE THE CHLORINE FREE SHOCK!

I was pleasantly surprised at the Chlorine Free Shock! I felt so much cleaner while using it, I didn’t have a terrible smell all over my hands like I do with other products. This one works great on my pool!!
Ease of Use: 5 Effectiveness: 5
04/10/2017
tiffanyrogers
Texas state

Just opened our pool and this has worked great! Awesome product. Will use again.
Ease of Use: 5 Effectiveness: 5
04/10/2017
Sherrim
Texas state

FNtastic product

Great product easy to use. (((((((((((((((((((((((((
Ease of Use: 5 Effectiveness: 5
04/09/2017
Chiasson1111
Texas state

Clorok Oxi Shock

We use this product when starting up and closing our pool. Works amazingly! We often use it after a huge rain storm also to get our chemicals back in line after many inches of rain. Works great, easy to use!
Ease of Use: 5 Effectiveness: 5
04/09/2017
Whoababy23
Texas state

Works

Easy to use and seems to be very effective. My pool is looking great since using.
Ease of Use: 5 Effectiveness: 5
04/09/2017
turbo
Texas state

clear pool

Seems to work very quickly, very pleased with results
Ease of Use: 5 Effectiveness: 5
04/09/2017
rob37
Texas state

Another great product from Clorox

After opening my pool for the season, and once I have the water balanced, I like using this chlorine free shock. It is just as effective as shock with chlorine and you don’t have to worry about raising your chlorine levels too high.
Ease of Use: 5 Effectiveness: 5
04/09/2017
fooddude
Texas state

Excellent for maintaining your pool water.

I’ve been using this after heavy rainstorms so combat algae growth and it works really well.
Ease of Use: 5 Effectiveness: 5
04/09/2017
Jacob
Texas state

Fantastic best ever

great product I love the fact that it is made by Clorox and it works great. I recommend this product to everybody
Ease of Use: 5 Effectiveness: 5
04/09/2017
Frap
Texas state

Easy to use shock that works

Similar to other shocks that I have used. Cleans pool and raises chlorine. I do not shock as often as some would recommend, but I have been able to maintain a clear and clean pool with regular chlorine use.
Ease of Use: 5 Effectiveness: 4
04/08/2017
gzavalney
Texas state

Love the packaging

This product works great and does it’s job as a great pool shock. One of the main things I love about it though is the packaging. It comes in bottles which is so easy to open and pour. I love not having to cut bags open. It works very well and gives me a clean and clear pool.
Ease of Use: 5 Effectiveness: 5
04/08/2017
sgardner
Texas state

Works well!

Just pour in the deep end of the pool, and no chlorine smell! Works great!
Ease of Use: 5 Effectiveness: 5
04/08/2017
hdh42
Texas state

Great product

Amazingly fast easy to use kills algae very quickly
Ease of Use: 5 Effectiveness: 5
04/08/2017
Thezazoo
Texas state

Great product!

Great product! User friendly, effective products & app!
Ease of Use: 5 Effectiveness: 5
04/08/2017
pgress
Texas state

Product works great!

I recently used this product to open my pool, and it has surpassed my expectations. I have used cheaper shocks in the past and had to use significantly more than i had to use this year.
Ease of Use: 5 Effectiveness: 5
04/08/2017
Msiegel
Texas state

Excellent product

I used this product weekly and so far has been doing a great job.
Ease of Use: 5 Effectiveness: 5
04/08/2017
Mtbepic77
Texas state

Awesome shock!

Used to open my green pool! Wonderful product! Very easy to use!
Ease of Use: 5 Effectiveness: 5
04/08/2017
Ashley310
Texas state

Super product

Easy to apply – however, your Clorox pool app does not have this product in the down selection to recommend the appropriate amount to treat like the Blue Shock Plus.
Ease of Use: 5 Effectiveness: 4
04/07/2017
Jimpro27
Texas state

Have not used yet

I have not needed to use this product since I have a salt pool which is chlorinated differently.
Ease of Use: 5 Effectiveness: 3
04/06/2017
DanStark
Texas state

Worked unbelievably well.

I opened my pool early this year and expected to have a great deal of difficulty balancing my chemicals because my cover had several holes that allowed leaves into the water. Within one week, my chemicals were spot on.
Ease of Use: 5 Effectiveness: 5
04/05/2017
Bill
Texas state

Crystal Clear

This product is easy to use and keeps the pool clean and clear.
Ease of Use: 5 Effectiveness: 5
04/05/2017
Mom2my3sam
Texas state

Chlorine Free Shock! What?

I never heard of chlorine-free shock. I thought the purpose of shock was to add chlorine. Yet, the instructions say, “This product will produce false high chlorine readings for 48 to 72 hours.” My chlorine reading didn’t change over three days. Why would it? I thought this product is chlorine free. I’m confused as to why anyone would want to buy this product. I continue buying shock WITH chlorine because I want the chlorine boost!
Ease of Use: 5 Effectiveness: 3
04/04/2017
PalmBayBob
Texas state

Works great!

I used this in place of my regular shock, and my pool is staying crystal clear.
Ease of Use: 5 Effectiveness: 5
04/04/2017
hotpockets17
Texas state

Best products

I have used Clorox for the past. 2 years and I love everything that I have used. It works and my pool is very easy to maintain. Great great product
Ease of Use: 5 Effectiveness: 5
04/03/2017
Cnajr124
Texas state

Not sure about this one…

As a new pool owner, we received this product to try and to give my honest review. I wasn’t 100% sure of the purpose since we own a chlorine pool. But we used it! I’d like to think that it worked in clearing up our pool, which we recently opened..but I couldn’t tell a big difference. This won’t shy us away from the other Clorox products we have come to love!
Ease of Use: 5 Effectiveness: 3
04/03/2017
Aponder
Texas state

Great product!!

This product is a great alternative to standard shock for those of who have salt water pools.
Ease of Use: 5 Effectiveness: 5
04/03/2017
Loop
Texas state

Love it

I love that I can finally clear and shock the pool without sending my chlorine through the roof. This will be a great product to keep around.
Ease of Use: 5 Effectiveness: 5
04/02/2017
Rkh88
Texas state

New to me

I have never used this, until now. I like that it shocks with out chlorine smell
Ease of Use: 4 Effectiveness: 4
04/01/2017
Gryphyn
Texas state

Another Greata Clorox Product for Pools

I can’t imagine an easier and more effective method to shock your pool than using the Clorox Shock Oxidizer. I use it regularly to maintain my pool and also use the Clorox App in my maintenance efforts.
Ease of Use: 5 Effectiveness: 5
04/01/2017
poolkeeper
Texas state

Love This Stuff

Easy to apply and no added chlorine. What’s not to love?!
Ease of Use: 5 Effectiveness: 5
03/31/2017
gtd869
Texas state

Clears my pool without adding chlorine

Clears my pool without adding chlorine which keeps my chlorine level At a acceptable range
Ease of Use: 5 Effectiveness: 5
03/31/2017
Teddy
Texas state

Awesome product

This is a great product to help keep your pool water looking great without making the chlorine levels rise. It is a shocker that has no added chlorine…great idea! I’ve always used the shockers to help keep my pool water looking great but it would throw off my chlorine levels and would make it hard to get it back right, this product however does not affect my chlorine levels. I love it and highly recommend it.
Ease of Use: 5 Effectiveness: 5
03/31/2017
Megan2180
Texas state

Does the trick!

Good product and does what it’s supposed to do and easy to use.
Ease of Use: 5 Effectiveness: 5
03/31/2017
Jack71jj
Texas state

You’re Gonna Love This Product

We had never used a shock oxidizer before so were excited to see if this product really made any difference in our pool. Well, we did see a difference. This product made our pool water sparkling clear and we were able to get into the pool within just 15 minutes after putting it in the pool. Fantastic! This product destroys organic contaminants and can be used in all types of pools including salt pools. We also feel this product is saving us money because it seems to reduce the need for sanitizer used for disinfection. We like this product.
Ease of Use: 5 Effectiveness: 5
03/31/2017
tmas
Texas state

Great product

Used the product and my pool it crystal clear. Will use on a regular basis!
Ease of Use: 5 Effectiveness: 5
03/31/2017
Jeffhe
Texas state

Nice alternative for non chlorine users

I was nervous using something that was Chlorine-free because I have always used chlorine based product and feel like it was cutting and destroying bacteria. I did find out that even though I was using my regular products, when I started my pool for the summer the water smelled of chorine and my levels were a little high so I opted to try and shock using this product that didn’t have the added chlorine! And it did an amazing job! Fully shocked the pool without adding the chlorine!
Ease of Use: 4 Effectiveness: 4
03/31/2017
bbygrl99
Texas state

Fantastic

All products I get by Clorox do great jobs I will refer to friends that have pools
Ease of Use: 5 Effectiveness: 5
03/31/2017
Cindy
Texas state

Awesone

Overall a Great product. Will definitely use in the future
Ease of Use: 5 Effectiveness: 5
03/31/2017
Nataly31407
Texas state

Great Product!

Love that this has no chlorine in it! Works great!
Ease of Use: 5 Effectiveness: 5
03/31/2017
ajohnson9217
Texas state

Ease of Use: 5 Effectiveness: 5
03/31/2017
Jason1
Texas state

Have not used

My pool is clear have not needed to use this product
Ease of Use: 3 Effectiveness: 3
03/31/2017
Pool user
Texas state

Fantastic product

This sure did help clear our pool at the opening stage
Ease of Use: 5 Effectiveness: 5
03/31/2017
Trace
Texas state

Amazing product

Chlorine free, wow this product works great and is easy on my family’s skin.
Ease of Use: 5 Effectiveness: 5
03/28/2017
Chris
Texas state

Easy to use

Clorox pool products, especially when coupled with the mobile app, makes pool care a breeze. Although the cost of maintaining a pool use the easy care method may be a little more than without, it beats having to travel to the pool store, which in my case is several miles away.
Ease of Use: 5 Effectiveness: 4
03/26/2017
TroubleFreePool
Texas state