In a medium saucepan, stir together water, vinegar, sugar, salt, garlic, turmeric, peppercorns, and bay leaves. Bring to a boil over medium-high heat, stirring to ensure that sugar fully dissolves. Remove from heat and add daikon. Press a paper towel directly against the surface of the brine and let cool to room temperature, 1 to 2 hours. Transfer pickles and brine to an airtight glass container and store in the refrigerator. Pickles will last about 1 month.
