HTH67089 Swimming Pool Care Algae Guard Ultra, Swimming Pool Chemical, Long Lasting Formula, 32 fl oz

Works great, keeps algae out of my pool. I have been using HTH for a few years now and have had great results. Just read the directions and it does work.

Good product, but when packaged for shipping product arrived with leakage in box. The chlorine product, 25 lbs., may have been too heavy to ship with the algae guard. I will keep the algae guard, but more attention should be taken when shipping these products together.

This product was extremely effective in riding my pool of nasty algea after extended periods of rain. I have purchased more for the future.

In the hot summer months in the desert, I get algae blooms that lead to thousands of little swimmer bugs. I have found this is the only thing that gets rid of the algae they feed on and kills them overnight. Very strong you only need a small amount dripped around the pool edge. Can make the water unpleasant for a couple of hours.

Using this for an algae problem in our pool and it has worked perfectly!

It kill all the Algae and clear the Algae stain, I been try different kind and this work good. My pool has Algae stain I try to brush it off, it not come off no matter how I brush it. After I put this direct in the pool and next day, the algae stain is gone. It cause the water little clouded.

This is my third successful season using this product in my pool after suffering years of recurring algae blooms and deposits on my pool's liner and tiles. Previously, nothing had worked and I had nearly worn away the tile grout by repeated futile brushing. Wish I had known about this product sooner!

I bought this because I didn’t have to go to my pool store to get Stop Green. It worked ok, but wasn’t enough. I had to still go buy Stop Green to fully clean my pool.