This is OUR pool store. I was going to another one in town and they were constantly telling me my water chemistry was off and that I needed to buy this product and that product. After I did, I'd do a water test and something else would invariably be off. I decided to get a second opinion at Leslie's and my water was fine. I mentioned all the products the other store had sold me and he said it was such overkill!! Leslie's has always seemed honest and fair to me. I never feel pressured to buy and they answer my questions even when I don't buy anything. Thanks for your honesty!!!