Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: I think it did go bad
Review: Company says this product can't go bad but I believe it did. I have used this for many years in my fish pond without worry. However the two bottles I purchased via Amazon did not keep my water healthy. As a matter of fact water went bad a week after putting product in the pond. Used it for 6 weeks until I gave up and went to local store and purchased a fresh bottle. Water cleared up in two and a half weeks. I do think something went bad in the product.
