Man, I don't know where this thing has been all of my life. We have dealt with yellow algae for the better part of two years. We tried different things that were just temporary fixes. Then, I found this online. It is nothing short of amazing. I just dropped it in the basket and it went to work. I wish I had before and after pics!! Within 3 days the algae was gone. Over a month later and it has not returned. I spoke to my pool guy today and he said my pool has been great. I was asking about this product and he said, "Man, I don't know what it is about it, but I know a lot of people that use it and it works." He said it works about 90% of the time.

The only issue I found is that when I added it my CYA went up to about 100. I really do think it was because of this. However, my pools guy said everything was good and my CYA is now 70. It's still high, but he said all other levels look great.

I haven't had to really do anything to my pool. I forget to clean it because it looks so freakn good. I am talking clear water!

If you want something that works, please do not hesitate to get this. I really wish I had known about it a long time ago!! Would have saved me time and money. It's stupid how simple it is to use. Quick and easy. Just drop it in and you're done!

I did not use it for a full season but for the last of our pool season it worked great. Just drop it in the skimmer basket and let the pump run. Within one day it killed most of the algae which had clouded the pool badly. It will clear the water quickly but does not get rid of algae patches on the bottom or side of the pool. Brushing or using the pool cleaner takes care of these and with the x in the skimmer, the algae does not come back. We left it in the skimmer basket with the pool cover on and for the first 2 months we have had no algae growing on the cover. Good deal!

This product was recommended to me after my pool turned green. I have been using it for about 3 years now and my pool looks amazing. Definitely worth the investment if you need help with Algae and clarity.

Works great in controlling algae

My parents have had a pool since I was 5 years old over 65. I'm maintaining the pool now. There is a pool cover. First year ever we had an algae problem. There is Avocado trees not sure why this year it's creating a problem. The product cleared up the Algae problem almost instantly. I did
cleaned the filter which was green. Next time the filter wasn't. Personally I would highly recommend this product.