Upon flushing commode, tub drain makes a loud gurgling sound. Pouring a glass or two of water into drain sometimes eliminates problem for a few flushes but noise returns. There is no drainage problem in tub or elsewhere. Have tried a plunger, and clog remover products but neither method works. Need advice.
Before DD J edits this master pieace (it is correctly spelled masterpiece, and this response is definately not one) TRY checking your vents for a partical blockage [Edited by John Aldrich on 05 May 2001]