Why Do I have a Gurgling Drain ?

[timrick]

But, ..isn't that an "Air Admittance" valve sitting above the trap, at :27 seconds)?
That 'one-way' valve is supposes to allow air IN, leaving the water in the trap, I thought.

[LEELUNK-IS-A-HUNK]

QUEST.. I BOUGHT A HOSE, I WANT TO PUT IT A FOOT DOWN INTO THE VENT IN THE ROOF, I'M SCARED OF FLOODING ONCE I TURN THE WATER ON. THE TOILET DID GURGLING SOUNDS AGAIN BUT THEN IT SEEMS TO NEUTRALIZE AND I CAN FLUSH PERFECTLY FINE, IT'S SO WEIRD

[raziyalatif]

I'm getting lots of bubbles in wash basin.... after washing hands, the water passes but the basin gets filled with bubbles....can u help me please... what could be the reason ???

[andersonandrew]

I have a very loud gurgling shower drain. I just installed a redi-vent about a foot downstream of the P trap, so the system has plenty of air. The drain is still making a bunch of noise when the shower is running. What should I check next?

[makenabook]

My kitchen sink gurgles when you first turn on the shower, but lickily no water comes out, it juast makes noise