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16-oz Dichlor Pool Shock

Ratings & Reviews for Clorox Pool&Spa 16-oz Dichlor Pool Shock

4.7
143
Review
 4.7 out of 5
143 Reviews

2 Star
0%

98% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product is generally effective in keeping pools clean, clear, and algae-free. Customers praise its ability to quickly and efficiently shock and sanitize pools, even in challenging conditions. The product's vibrant blue color is also appreciated. However, some customers have experienced issues with the product not dissolving properly or failing to adequately treat their pools. There are also concerns about recent price increases, and a few customers prefer the previous packaging format. Proper dosage and maintenance are crucial for maximizing the product's performance.

Customer review summary generated by AI, including incentivized reviews.
143 Customer Reviews

Worked out for 1 week cleared up the pool

Would Recommend

The product does what it’s made do as long as you’re using it as directed, and your pool chemicals are balanced properly.

June 28, 2025

From Clorox-Pool

Green Swamp to Blue Oasis

Our cover ripped mid winter and caused debris and pollen to enter our pools, this resulted in a green swamp. After researching and reading reviews. I decided to give the Clorox brand a try. I spent money on other competitors products with no successful results. If you have a green pool and algae bloom Clorox is the brand to go for. I recommend their wonderful mobile app that allows you to scan the test strip for immediate and accurate test results. The app will suggest what products and how much...

May 30, 2025

From Clorox-Pool

Works+Fast!

This+stuff+is+great!+The+pool+store+shock+could+not+even+compare!+It+will+clear+a+green+or+cloudy+pool+overnight+with+the+proper+amount+due+to+your+issue!+Highly+recommend!

May 17, 2025

From Clorox-Pool

The Perfect Maintenance Shock

I use this shock every week in my pool to keep it looking awesome! It doesn't cloud and leave white stuff in my pool like the HTH shock does.

April 4, 2024

From Clorox-Pool

Works well

Works well, just be mindful of your PH.. i see lots of negative comments but ill be they didnt have good ph.

March 19, 2024

From Clorox-Pool

The Best

The best I've ever used in 20 years of maintaining my pool. Easy to apply, dissolves quickly with light brushing. Lasts a long time (don't forget to use Stabilizer). Just got a new liner last season and the liner is just as perfect, and bright as year one. Water is bright and clear. Thank you Clorox!

May 22, 2023

From Clorox-Pool

No support

I bought a 1Lb jar but then found out there is no real breakdown for using in a spa. Using the web page and indicating my spa was only 500 gallons, it showed to use .04 Lbs . Not sure how to measure .04 lbs so I emailed Clorox and requested they break that down to tsp or tbs. No reply. I guess I'll have to go to the spa store and buy a product I can rely on.

February 4, 2023

From Clorox-Pool

Pool shock 6 in 1

Great product I used in my above ground pool it was light gree three hours later is was crystal clear and ready to use pool

August 6, 2022

From Clorox-Pool

Clorox blue

I love this product it is the best I have come across would definitely recommend to anyone who has a pool it works like it says it will!The only problem I have is finding in stock

August 3, 2022

From Clorox-Pool

Feeling Shorted

This product work pretty good with continual usage.. however, last time I purchased a box of the 6 pack there was only 5 packages in there.

June 8, 2021

From Clorox-Pool

Doesn't work very well and you need a ton

Would Not Recommend

Buy Leslie's pool shock. Works almost instantly. This tool forever and still the pool was very light green still.

October 30, 2020
Verified Purchaser
Was this Review Helpful ?

Used to be in bottles

This product used to come in bottles which was convenient for storage. For my above ground intex, it would take half the bottle a week to keep algae from growing. I never added floating tablets or anything else to my pool. It would stay clear and algae free by just adding the bottle. If i forgot to add the bottle and algae would start growing, then it would take a full bottle to kill it. Now i can't find the bottle in stores or online anymore and all I see is this bag which appears to be th...

October 19, 2020

From Clorox-Pool

Problem with pool

Would Recommend

I been using some of these products but the one needed to solve the problem of my pool that the strip recommend can't find it on store. I would like to add it to my cart on your app, but don't know how to do it. Also I need to purchasing others Clorox products to maintain the pool and is impossible to added to the cart. Please help.

October 7, 2020

From Clorox-Pool

Not for your every week use

This product does work, but make sure you test your CYA levels regularly. It can quickly raise CYA level above 100 of you are using tablets as well. As with everything, use moderation.

September 13, 2020

From Clorox-Pool

Shockingly Blue!

We have been fighting green algae for 2 years now during the summer months. A constant battle. One treatment with this product and our pool turned shockingly clear. Weekly treatments have kept it that way through "August in Texas"! No algae in sight! It's a little pricey compared to the others that we used - but well worth it!

August 27, 2020

From Clorox-Pool

Shock Xtra Blue

I have no idea how to use the product. I cannot read the minuscule directions on the back - even with my glasses. Can’t find the directions anywhere on this site either. Guess I’ll return it.

July 18, 2020

From Clorox-Pool

Useless

Would Not Recommend

Been using Texas blue for years. Decided to try the Clorox tablets my pool is now green I bought the granular shock as advised on the website and it still green this product is useless

July 18, 2020

From Clorox-Pool

Afraid to use it because of Cyanuric acid

I have a problem with a high level of cyanuric acid in my pool, it is over 100ppm, so trying to find out how it got there. Now I see a comment in a forum saying: - For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm. Apparently the ingredients in Clorox Shock XtraBlue include Sodium Dichloro-S-Triazinetrione (63.05%) which suggests that using this will build up the cyanuric acid in my pool. I don't understand people saying that they have been using this Clorox product for yea...

July 4, 2020

From Clorox-Pool

IT WORKS!

Would Recommend

This product worked very well. It is very easy to use. The app also helps so you don't have to carry bottle around. The app is so user friendly.

June 28, 2020

From Clorox-Pool