Human waste, toilet paper and cleaning chemicals consistently travel through the toilet. In the absence of a toilet vent, the gases expelled by waste and other solutions can remain in drainage pipes. Eventually, those malicious fumes retract from the drainage pipe back up into the restroom. This event causes the restroom to become an unsanitary and dangerous area inside a home. Leaving a toilet unvented can result in other impediments as well. Yes, toilets need to be vented.
What happens if a toilet is not vented?
Ventilation in the drainage pipes permit natural pressure in the pipes to level and help move the wastewater and matter down to the sewage line. Without the extra power from ventilation in drainage pipes, the water would have to be: siphoned out, pumped, or removed by artificial means.
Poor ventilation can develop a variety of plumbing setbacks.
Overall venting will require a professional opinion. A drain camera might be needed to find the source of the issue, and building reconstruction is required in order to allow air to enter the drain pipes. A plumber would be able to resolve and answer any issues when you call for a free estimate. It is here where they can give you their recommendations and pricing before hiring them for a job.