I tried everything I knew of to get these stains off (iron out bath for days, CLR, muriatic, textile gun). Then I tried Whink rust stain remover for 15 minutes, here are

How to Remove Hard Water Stain on Glass • Everyday Cheapskate

Rust Stain Removers Reviews: Which Products Work Best?

Rock Currier - Cleaning Quartz

Whink Rust Stain Remover Detailed Review

BEST RUST/HARD WATER STAIN REMOVER EVER!!! Whink (Must See)

Iron OUT Rust Stain Remover Spray Gel Review

Does OxiClean remove rust? - Quora

Trying a new rust remover - Whink

Whink Rust Stain Remover Detailed Review

Best on Rust: #1 Heavy-Duty Rust Stain Remover Brand Powerful gel clings to dissolve rust stains on contact; no scrubbing necessary Quickly and easily

Iron OUT Spray Gel Rust Stain Remover, Remove and Prevent Rust Stains in Bathrooms, Kitchens, Appliances, Laundry, Outdoors, white 24 Fl Oz (Pack of