The answer to 'drain trap making gurgling noise' is that a gurgling drain trap is often caused by a blocked or partially blocked drain. This can allow air to be sucked back into the plumbing system, causing the gurgling sound. Common causes include hair, soap scum, and other debris buildup in the trap or drain line.
The symptoms of a gurgling drain trap include a bubbling or gurgling sound when the water drains, a slow-draining sink or tub, and potentially unpleasant odors from the drain. To fix this issue, you can try using a plunger or a drain snake to clear the blockage. If that doesn't work, you may need to disassemble the drain trap and clean it out. If the problem persists, you may have a more serious clog further down the drain line that requires a professional plumber to address.