After you plunge the sink, plunge your toilet. If you can still hear gurgling, keep plunging or move on to the next step.
2. Cleaning The Roof Main Vent Stack
It’s very common for your vent stack to get filled with debris. If you don’t feel comfortable doing this method yourself, call a professional.
- Go up on your roof and find the pipe sticking out of your roof.
- Take a garden hose with you and begin to pour water down the vent. (You will need a second person to turn the hose on).
- Listen to hear if the water pushes the clog down the drain.
If the garden hose doesn’t work, you can use a sewer snake to pull out any clogs in the vent.
3. Replacing The Cheater Valve (Air Admittance Valve)
A cheater valve also called an air admittance valve, is a gravity-operated device that helps release negative air pressure. When water and waste move down a drain, it creates negative air pressure in the pipe. This negative pressure lifts the cheater valve and lets air inside the pipe, allowing waste to drain away freely. When the negative pressure stops, the cheater valve falls back into place.
Commonly found under your sink between the P-trap and the drain line, these valves can deteriorate over time and need replacement. All you have to do is unscrew the old one and replace it with a new one. Simple enough!
4. Cleaning The Sewer Lines
If the problem is a clog in your sewer pipes and none of the above solutions work, you can call a professional sewer repair specialist who can clean your pipes using hydro-jetting.