Can a Vent Plug Cause a Slow Toilet

We get asked if a vent gets plugged will it slow the toilet down when flushed. Yes, in fact one of the major reasons toilets flus slowly. Air has to come in behind the toilet when flushed to displace the water as it leaves the toilet. If its plugged, the less air is available and the water cannot leave. IF its totally plugged it will spin around for a long time until it finally drips out. So a clean vent is important. Critter Quitters will help keep the vent clean be keeping things out.