Achap,
Thank you for reaching out! we can certainly address your concerns about your new sink.
The deposits you are noticing are not part of the stainless steel; they are deposits on the surface of the sink and can be removed with cleaners containing oxalic acid. Unless pure distilled water flows from your faucet, there will be dissolved minerals and salts in your rinse water.
How to Remove Deposits from your Kraus stainless steel sink:
1. Choose from one of the recommended cleaners listed below.
2. Swab with a microfiber cloth, nylon pad, or a 3M Scotch Brite- Natural Fiber- Non- Scratch Scour Pad and soak for 5 minutes, always wiping in the direction of the grain.
3. It is highly recommended to rinse with clean water and dry your sink thoroughly. Please note that when rinse water evaporates, the mineral/salts are sometimes left behind. These are the same water spots you see on your car finish.
Recommended Cleaners:
Bar Keeper’s Friend, Bio-Clean, Bon Ami, Flitz, Maas
Nevr-Dull, Shiny Sinks Plus, Zud, Autosol Shine
Please feel free to reach out to us at 800-775-0703 or via email at customerservice@kraususa.com with any additional questions.