Hi EA, we're sorry to hear that you're having a staining issue causing you to not have a great experience with your Elkay HDDSB33229TR3 Avenue Stainless Steel Single Bowl Dual Mount Sink. Thank you for letting us know about your experience. Sometimes this can just be surface rust from high iron in the water. We have articles on our online Help Center for Stainless Steel Sink Care and Cleaning and Removing Rust From Stainless Steel Sinks. I have included the links to those articles below. It is our priority to ensure customer satisfaction. Please contact our Customer Care department by phone at 800-476-4106 or email at productsolutions@elkay.com to discuss the matter in more detail.
https://helpcenter.elkay.com/hc/en-us/articles/360004330093-Stainless-Steel-Sinks-Clean-Care-
https://helpcenter.elkay.com/hc/en-us/articles/360055620214-Removing-Rust-From-Stainless-Steel-Sinks