Thanks so much for your feedback. Your input and the feedback from our customers is vitally important to us as we always want our customers’ expectations to be met. We are sorry to hear that you are experiencing these stains on your new sink. I assure you, they are not rust marks. Typically, when red spots appear on a Stainless Steel Sink like ours it is simply surface discoloration. This is usually taken care of permanently with a stainless steel polish and/or cleaner when used according to the directions of the cleaning product. Products such as Bar Keeper’s friend and a fine 3M Scotch Brite pad are both great options.
I've also taken the liberty of creating a case for you with our Customer Service Team - case:325376. Please feel free to reach out to us at 800-775-0703 or email us at customerservice@kraususa.com and refer to your case # 325376 and we would be happy to assist you directly.
Thank you for sharing your experience with us and giving us the opportunity to remedy the situation.
Best regards,
Mike
Kraus USA