mike77mastro
Jun 11, 2013, 11:01 PM
The bowl of one of two toilets in my house just started emptying. The other is not. Could it be a plugged vent?
speedball1
Jun 12, 2013, 08:00 AM
Hi Mike  and welcome to The Plumbing Page  at AMHD.com.   Sure sounds like a blocked vent to me.  Snake the lavatory roof vent that services that bathroom.  Put out enough snake to reach the base and 15 more feet.   Good luck,  Tom