The answer to 'how to maintain drain trap' is to regularly clean and inspect the drain trap to prevent clogs and ensure proper drainage. A drain trap is a curved section of pipe under a sink, bathtub, or floor drain that holds a small amount of water to prevent sewer gases from entering the home.
To maintain a drain trap, you should remove and clean it every 6-12 months. First, place a bucket under the trap to catch any water. Use pliers or a basin wrench to loosen and remove the trap. Inspect the trap for any debris or buildup, and clean it using a pipe brush and mild detergent. If the trap is cracked or damaged, replace it. Once clean, replace the trap and ensure it is properly sealed to prevent leaks.