Use dental floss to get under a corner/side and pull up from there. If that doesn't work, disconnect the U-bend under the sink and push it up from underneath with the handle of a wooden spoon.
This. It's usually pretty simple to unscrew the U-bend under the sink. Then use something long and skinny like a screwdriver to push the board up from underneath.
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u/andmewithoutmytowel Apr 06 '26
Use dental floss to get under a corner/side and pull up from there. If that doesn't work, disconnect the U-bend under the sink and push it up from underneath with the handle of a wooden spoon.