Blessing 'in a Bottle 12 oz. of White Vinegar 12 oz. of Dawn Dish soap 1 tsp. of Laundry Detergent also known as "kitchen Magic" This stuff will get through anything, make your sink and shower shine like new, and save you when just about nothing else works. The laundry detergent is optional-I add it simply to cover some of the vinegar smell!
Worked VERY well. Smell is strong but it gets the shower and grout clean! *Heat 12 ounces white vinegar in microwave until hot and pour into squirt bottle, then mix with 12 ounces Dawn dish soap & shake. Spray & let sit for an hour. (may use more vinegar than soap)