In The Swim Super Algaecide for Above Ground or Inground Swimming Pools – Low Odor, Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools - 7.1% Chelated Copper – 1 Gallon

I'm a relatively new pool owner since I moved into my new house. When I ran out of the chemicals that were left behind by the previous owner, I picked this one up to help get rid of the algae that built up in the spring (we didn't open our pool until late because we had a vacation planned in June).To say our pool was green would be an understatement. When this algae cleaner arrived I followed the instructions on the bottle (I love that it has ounce markings on the side so it is easy to use the right amount based on pool size). The next morning, my pool was noticeably less green. I use those 'pool socks' on my filter, so I could also see TONS of algae getting filtered out, which means the algae was dying off and getting filtered out.Anyway, long story short, this product works as advertised and was priced right (which is why I bought it). It worked faster than I expected. It did take a few days for my water to become completely clear, but that was because the filter needed time to pull out all the dead algae. I'll also note that based on how much I used this treatment, I think this bottle will last me at least 2-3 summers.

Works great

Did a terrific job

Impressed with how blue this made the water

After days of rain, I was getting some green algae in my pool which I haven’t had since opening it and I put the recommended amount of this and 5 gallons of chlorine and it cleared up overnight. Not sure how much credit to give it but I think it definitely helped. (Inground pool, about 25,000 gallons).

From green to clear waterr really really works

Giving it a 5 because it does the trick against algae-fairly quickly too. But be careful on how much you add each season without recycling the water in your pool. This item has copper!! And there’s not too many options when you have too much copper in your water.

Why did you pick this product vs others?:It works great and does an excellent job preventing all algae growth. Directions for use are clear and product is easy to use. There is no odor, no foam.