My kitchen sink is not draining properly. Home Page › Forums › Answers › Plumbing › My kitchen sink is not draining properly. This topic contains 1 reply, has 2 voices, and was last updated by Kayley Wagner 1 year, 3 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts March 2, 2012 at 1:44 am #12508 jay57Member Replaced sink. Drain is not clogged. Has a garbage disp.. water backs up into sink and goes right down when the garbage disp. is turned on. Seems like it might be air locked? March 7, 2012 at 1:25 am #14602 Kayley WagnerKey Master If it is not a clog in the trap, it could be a clog in the disposer itself. Is it a new disposer? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.