cup white vinegar warm in glass measuring cup then add 4 tablespoons of baking soda watch out for a little volcano and then add cup of blue dawn mix spread on shower floor and walls if needed let set for 2 hours
Use Easy Off Oven cleaner to clean fiberglass shower floor. Easy Off in the blue can cold method oven cleaner, fume free. Spray on floor, let sit 30 min to 1 hour scrub with stiff pad or brush (use gloves) and rinse well with hot water.
Try This Powerful Homemade Shower Cleaner & Soap Scum Remover
This homemade shower and tub cleaner cuts through stubborn soap scum like nobody’s business, plus it clings to the walls and floor, rather than running right down the drain. (Things To Try Laundry Detergent)