Why does my toilet bubble up randomly?
Why does my toilet bubble up randomly? When a toilet gurgles, it indicates that negative air pressure (suction) is building up in the drain line, creating an airlock of sorts. Gurgling indicates abnormal suction building in the line. The negative air pressure will eventually release, pushing air backward through the drainpipe and into the toilet bowl. What does it mean when your toilet bubbles when taking a shower? 1. Forcing air out: When you turn your shower on, the water drains down the pipe, pushing the air that was in the pipe out with it. If there is a clog...