This is the purpose of a venting system.
Drain waste vent underneath floor.
The true vent is aligned vertically and attaches to your drain line through the roof.
The same holds true for plumbing vent pipe.
This powered drain snake has a long length of flexible metal with teeth on the tip that can help cut through roots clogging drains.
This is best implemented if a fixture rests close to the stack and the top floor of your home allowing the stack to serve as a vent.
Figuring out your drain waste vent lines if you have to make plumbing repairs around your home it helps to understand your drain waste vent system dwv.
As water goes down a drain air is needed to equalize the pressure in the drain line.
Figure 7 floor waste gully installed under a concrete slab on ground.
Water traps floor wastes floor waste gullies vent pipes drain vents discharge stack vents these are some of the terms used in reference to sanitary plumbing.
True vents also have no water running through them.