One of the most common reasons homeowners contact a plumber is out of concern for unusual noises coming from their drains. Plumbing can make numerous sounds for many reasons, including an unpleasant gurgling that sounds like it could spell trouble. Below is an explanation of why your drains are gurgling.

Why Is Your Plumbing Making Gurgling Noises?

The cause of gurgling drains is always air bubbling through a liquid. However, the source of this air and the cause of bubbles varies. Some of the most common reasons include the following. 

Ventilation Blockage

The liquid needs air to flow smoothly, or you experience the "glug-glug-glug" that occurs when milk leaves a jug and creates a vacuum at the mouth. Therefore, a plumbing system needs a ventilation line that permits air to enter and leave the pipes as necessary. If the ventilation line becomes clogged or if the system does not have enough vents, you can experience gurgling sounds as air tries to escape by another path.

Clogged Drain

When soap scum bonds with hair and other debris, it can partially block a drain and prevent easy flowing. Water may stop flowing momentarily, as vapor works its way through the blockage, before recommencing. This may be the source of gurgling noises you hear. Have a reputable plumbing technician inspect your drains and ventilation system to determine where the blockage is.

P-trap Problems

A drain contains a U-shaped P-trap that always contains a few ounces of water. The water prevents odors and methane from escaping out the drain and into the house. Instead, they exit via the ventilation system. A cracked or missing P-trap allows air to bubble out in the wrong direction and vent out the mouth of the drain. It could also occur if the drain has not been used in months and water from within the P-trap has evaporated. 

 

If your drains are making unusual sounds and you seek the services of an experienced plumber, contact Big River Plumbing in Ellsworth, WI. They have served Pierce County and the Greater Twin Cities for more than 20 years. They specialize in both residential and commercial plumbing systems, including water softener installation, water heater repair, and bathroom remodeling. Learn more about them on their website or call (612) 286-5662 to arrange a consultation.