Hydrogen Peroxide Anyone….
This is a great alternative to cleaning with Bleach. Many people feel bleach is offensive. Bleaching toilet bowls with it may work, but also may give someone a headache. Hydrogen Peroxide is in a dark bottle for a reason and is only effective right out of its bottle. HP is a foaming agent and works well in its purest form. If you want to remove grout stains, try mixing HP and baking soda (equal parts) and pasting this on the dirty or stained gout areas. Let dwell, dry then wipe clean with a clean cloth. The longer the stain has penetrated the grout the least effective this may be. Repeat as needed. Clean and Pink has used this process in many kitchens and has had success.