Plumbing noises typically center around sounds from your pipes. However, sinks make several loud noises, and some signal the need for repairs. If you hear one of these noises, take some time to care for the drain. Simple repairs prevent unexpected problems, like severe clogs, which may require extensive maintenance and added costs.
A gurgling sound in your sink drain signals a bad vent in the drain system. Vents ensure water flows through the drain evenly to assist in drainage. As water flows through the drain, some air exchange occurs, so if no air or not enough air enters the drain, a gurgling or sucking sound is the result. This vent is a one-way valve, so air does not escape back out through the drain. Replacing vents requires the assistance of a plumber or professional.
Blocked Drain Lines
If drain lines clog or become partially blocked, the sink makes noises that range from gurgling to bubbling sounds. If the drain line is blocked, the water will drain very slowly. Also, all drains connected to the clogged drain line will drain slow. If your kitchen, bath and shower drains are very slow and make gurgling or glubbing sounds, the problem probably arises from your home's main drain lines, which also requires professional attention by a certified plumber.
A clogged sink will make a sucking sound or bubbling sounds as it drains. This problem is fairly easy to diagnose and fix. If your drain suddenly starts making odd sucking noises or gurgles loudly, and just that particular drain is slow, there is a clog or partial clog inside your drain trap. Unscrew the drain trap from the base of the sink and carefully remove it. Inspect the trap for a clog and clear away all debris before reconnecting the trap to the sink basin.
If your drain makes a dripping sound or a sound like running water inside the pipes, the problem is a leak from one or more appliances or fixtures. When the appliance leaks, the water is dripping down into the drain line causing this sound. Repairing the fixture itself is the only way to stop the leak. Inspect all the appliances and their supply lines to find the offending fixture and replace it.