Clorox® Pool&Spa™ Shock XTRABLUE® Plus, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (6-Pack)

I recently used Clorox Pool&Spa Shock XTRABLUE Plus in my pool, and I’m seriously impressed. It killed the bacteria and algae fast, leaving the water crystal clear and sparkling. I love that it works so quickly—I added it in the evening, and by the next morning, the pool looked amazing. It’s easy to use and dissolves well without leaving any residue or cloudiness. The water feels clean and safe, which is a huge relief when swimming with family and friends. I also appreciate that it’s a reliable brand I can trust for pool maintenance. If you want a simple, effective solution for keeping your pool bacteria- and algae-free, this shock treatment is definitely worth it. Highly recommend for anyone looking for fast, dependable pool care!

This is the only thing I put in my pool, keeps it clean and clear and it's worked for the last few years. We keep it open all winter and add about 1 a month then when the temp gets up to about 65 we just add about 4 at once then 1 or sometimes 2 a week all summer.

This stuff is amazing! Makes our pool water crystal clear within hours. Just throw it in at night and the next morning you wake up to resort looking water. Cheaper here than at stores.

This stuff works great!

Great product for the pool! Dissolves quickly. Price is right. Definitely kills bacteria. Helps keep pool clean. Hubby likes to do polar plunge. We keep our pool open during most of the winter. This product still works in freezing temps.

i chose this over sodium hypochlorite shock for my swimming pool. Sodium dichloro-s-triazinetrione (often called "Dichlor" or simply "granular chlorine") is a stabilized, fast-dissolving, and pH-neutral chlorine sanitizer (55-63% available chlorine) designed for maintaining sanitization levels in swimming pools, hot tubs, and spas. It is highly effective because it contains cyanuric acid (CYA), which protects the chlorine from sun degradation, making it more long-lasting than un stabilized liquid bleach. I have used this in "tablets" used in my pool and have not had an issue with "chlorine lock" but do monitor for that. It's granular, you distribute with the pool running, do not put into the feeder. It has a higher chemical content that regular bleach, i like the 12 bag size of this offering and have used it before. There is not an ideal solution and i try to keep the chemicals balanced so i am not shocking the pool weekly.

Great for the pool water is great after using great price

Oh my God I was so bad this year - We ran out of chlorine during the winter... Which is usually fine because algae doesn't bloom in the winter I've noticed.... But here we are going into spring or the desert so the days are already up at like 80 to 85° so it started blooming! We've had it covered all winter with like one of those blue bubble covers - so I'm going to tell you the right way to use the shock because I see some people in the reviews complaining it's not working. Step one BRUSH YOUR POOL! It's going to be gross because your pool is basically a nasty little swamp pond and it's going to be stinky and probably slimy but brush it and loosen up all that nasty algae. Step two Do your best to skim it as much as you can especially around the filter inlets - Make sure your pool pump is running during brushing and skimming. Step three SHOCK YOUR POOL! The instructions are super clear and actually tell you to do the above step number one lol I've shocked my pool before and it not work because I didn't brush it and loosen up all the crap and I was trying to get rid of. No I'm not doing anything other than that to prep the pool - I'm not balancing pH or adding any chemicals or whatever it's just nasty pond water getting agitated. In my photos you'll see in just 10 minutes the shock is already starting to change the color of the pool - I know I was shocked too. Then there's the photo of it getting more clear and that's at least 2 hours after the shock. I used a whole bag even though that's way too much for our pool because I needed to use the big guns and get it taken care of. I'll update my review when I've got the more photos to share I'm actually in the process of doing it right now those photos above are from like a couple hours before Im writing this review.