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Get it out with a bowl of 1 cup of water and 1 tablespoon of vinegar. Microwave for five minutes, then wipe down with a paper towel or sponge.
Tub Cleaner: Vinegar And Dish Soap, No Scrubbing. Heat 1/2 Cups White Vinegar In Microwave For 90 Seconds, Pour Into Spray Bottle. Add 1/2 Cups Blue Dawn Dish Soap. Shake Gently To Mix. Spray On Surface, Let It Sit 1-2 Hours. Just Wipe It Away, Then Rinse With Water. Should Also Take Soap Scum Off Shower Doors.
2 cups of water and a splash of vinegar, microwave for 5 minutes and wipe clean. I did this today and it worked great!