Noticed water on floor in front of bathroom vanity (1970s house). Single sink small wood vanity. Wooden floor of vanity was wet not dripping from pipes. Need new caulkint around sink - left door open overnight to dry out and bottom of vanity is still very wet this morning. Help please, thanks

May take more that over night to dry out. Place paper towels on bottom of vanity to help find leak. Dry floor well and lay a couple layers of paper towels down. Even one drop of water will show up on dry paper towel.

Take a wad of toilet paper and starting at the top of the under side of the bowl start wiping around the space where the bowl's connected to the vanity top. Any moisture? No? Then wipe around the drain and work your way down until you have wet spots on the TP. Let me know what you find. Good luck, Tom