How to Clean or Remove Rust Spots from a Shower Panel. Taking a shower with shower panels is somewhat like walking through a carwash. Any shower wall panel must fulfil three basic requirements: it must be waterproof; it must be easy to keep clean; the shower wall must look good. Step One – Cleaning the AreaWet the rust area with warm water. Gently rub the pumice stone … [قراءة المزيد...] about How to Clean or Remove Rust Spots from a Shower Panel