In The Swim Algaecide 60 Plus for Swimming Pools - Non-Metallic, Low Odor, Non-Foaming Algae Bloom Preventative - Chlorine Sanitizer Compatible - 1 Quart

Simply put, this product works. I've purchased it numerous times. One container typically lasts me a whole season if I use it regularly to prevent algae outbreaks. I've had a few outbreaks in the past and have used this with super chlorination to resolve the outbreak. It works well and quickly. Typically the pool is completely clear within a day, sometimes two at the most. The manufacturer recommends another product for outbreaks, but I've found this product works fine so you don't need 2 different products. My pool is a 20K in ground.

Keeps the algae at bay and reduced the need to brush. 4-8 oz. every week or two kept our south side pool walls algae free during the hot summer months.

Works great.

Please note that "2 x 1/2" means there are qty two - one half gallon jugs. For a total of one gallon . You are NOT getting 2.5 gallons !

I live in Arizona. Every summer I fight algae in my inground pool. Over the years I have tried a number of different products, this one works the best. 12 ounces once a week and it keeps the pool algae free.

Product is just what I needed to remove stubborn brown algae on the side and bottom of my pool.

Great for maintenance. Keeps the pool crystal clear even when pollen is high and winds blow substances inti the pool. Treating algae blooms requires a large amount but for maintenance it is better than other products I have tried.

no algae this year!