If your faucet aerator is stuck and won't unscrew due to heavy mineral scale crust, wrap a thick rubber band or a piece of rubber grip material around the aerator collar to enhance your hand traction, then turn counterclockwise using adjustable pliers. Alternatively, soak the aerator by securing a plastic bag filled with warm white vinegar around the spout tip with a rubber band for one hour to dissolve the crust. Verification: Twist the aerator housing by hand or with pliers to confirm it spins off freely.
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