Slow drains Home › Forums › Archives › Old Bulletin Board Archives › Slow drains This topic has 1 reply, 2 voices, and was last updated 21 years, 8 months ago by Richard. Viewing 1 reply thread Author Posts 14 Jun 1999 at 12:05 am #282186 digity dog The kitchen and bathroomdrains, drain very slowly. After they drain completely, a loud gurgle is heard. I do have a ventpipe to the roof. Help. 14 Jun 1999 at 12:22 pm #306443 Richard Richard, You have a blocked drain. Call your plumber and have the drain cleared. The gurgling is a result of the pipe running full and sucking in air through the trap as it runs away. Grahame. Author Posts Viewing 1 reply thread The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.