Gurgling Drains: What the Sound Is Actually Telling You
If you’ve ever heard a sink, bathtub, or toilet gurgle when water drains, the sound is more than an annoyance—it’s a clue. In most cases, gurgling indicates that air can’t move through your plumbing system the way it should, causing water to back up and create unstable pressure.
What gurgling actually means
Residential drainage systems rely on both water flow and air movement. As water travels through pipes, it must be replaced by air coming through vents. When that ventilation is restricted or blocked, air is forced through standing water or back toward fixtures, producing bubbling and gurgling noises.
Common causes behind gurgling drains
1) Clogged or blocked vent pipes One of the most frequent causes is a vent issue—often due to debris, bird nests, leaves, or ice. A blocked vent can make drains sound like they’re &ld ... Read more »
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