: Distinctive gurgling noises from toilets or sinks after flushing or draining.

Attach a stainless steel mesh screen cap over the roof pipe opening to keep out pests and debris without restricting airflow.

Inspect your roof lines every autumn to clear away leaf buildup before winter weather sets in.

Older cast-iron vent stacks flake internally, causing a pile-up of debris at the pipe bends. Serious Dangers of Ignoring a Blocked Vent