Purchased this last summer and never had an issue so I decided to purchase it again this year. Very pleased with no issues in our pool the entire season.

We have been buying this product for years. We love it.

Pool stays clear all summer

This worked so fast and my pool went from green to clear .

Price was 75% lower than local pool store

Didn't work- caused large amount of bubbles for days!

shipped fast. good price. works fast.

Excellent product

Have been using this algaecide for 4 years...works great!

Arrived promptly and received what we ordered. Use this every year in swimming pool.