Clorox® Pool&Spa™ XTRABLUE® Plus Swimming Pool Algaecide, All-in-One Algae Killer, Non-Foaming, 40 Ounce (Pack of 1)

This product worked very well in my pool. Immediately cleared the water, but did have to scrub a few times and for sure redo the treatment after the 72 hours as recommended. I also turned up the running time on my filter and have not had any further problems with algae.

I had the filter fail while I was out of town. The pool quickly turned into a swamp. Treated the pool with this two times and it cleared right up.

simple to use product that clears algae and keeps your pool sparkling clear. this product is the BEST. with record heat this summer this product will get rid of your. algae and keep your pool looking great. Don't spend a bunch of money on different algaecide products to get rid of any algae you may have. this one product will take care of it. use initial dose and then around 8 to 10 ozs. weekly and your pool will always look great and you'll be saving money in the long run. I tried so many different products and a ton of money and nothing worked as good as this product. this is the best pool item you can purchase to keep your pool looking great with no odor. have been using for the past 2 years and very well worth the money spent. you will save in the long run using this product plus it is the best out there.

Awesome product and I will be back for more

I like this and do subscribe but make sure you poor it in the jet as some blues stains is showing up at the bottom of the pool. It takes a bit but it goes away with time about two months

I mainly use this product with my weekly maintenance routine. It works great in keeping algae from forming. The recommended amount is only 1.5 fl oz per 10k gallons. If your pool is well maintained, this can go along way.If you’re having algae problems, this will help, but as specified in the directions, it’s important to have the other chemicals balanced to get the most out of this product, especially PH and chlorine. It’s also important to understand that using this and shock at the same time renders both of them useless.I recommend going to a local pool store and getting the water digitally tested. This will help get everything balanced and the water clear again. I would not simply expect clear water in 8hrs, as advertised. If there are other underlying issues, this could take several treatments and other chemicals, or there could issues with your filters.

Purchased this to combat mustard algae in my pool. Used exactly as the directions stated. 100% cleared the algae within 4 days.

With this unusually hot summer, I've been battling algae. My pool is 30,000 gallons and a full bottle of this worked to clear the green algae within 2 days.