If mildew does not come out with water alone, you may need a stronger cleaner.
As bleach is dangerous if ingested, make sure to store it in a safe place away from children and pets. Wear gloves when handling bleach.
Remember to wear gloves if you’re scrubbing in bleach.
Make sure to check cracks where grout is found for mildew. These areas are often neglected during cleaning, which can cause mildew to spread.