Why Does My Toilet Gurgle and Burp After Flushing?

By Staff WriterLast Updated Apr 2, 2020 1:19:10 AM ET
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Toilets make odd noises, such as gurgles and burps, due to the movement of air through water. Most often, the air movement responsible for such noises is due to a clogged or improperly working vent stack. These clogs cause a vacuum to form as water drains. Once the force of gravity empties the water, the vacuum pulls air through the trap.