How do you tighten a sink trap?
How do you tighten a sink trap? On a metal trap, tighten them hand tight plus about a half turn, using slip-joint pliers to grip the nut. On a plastic trap, just hand tighten, and, if needed, give the nut about a quarter of a turn with slip-joint pliers. If that doesn't work, loosen and remove the entire trap. What is the thing sticking out of my sink? The valve is actually for the dishwasher and is commonly known as the dishwasher air gap. An air gap's purpose is to prevent drain water from the kitchen sink backing up into...