Your vent pipe thru the roof may be clogged or your p-trap may not be deep enough. Have them checked first.
Hi Thomas, I bet you live on a well. We have had the same problem and I am sorry you are dealing with this. Hope this helps. Good luck and Merry Christmas Eliminate That Rotten Egg Smell From Your Water | Terry's Plumbing
Do you notice a particularly nasty smell when you start to run your tap water? Could the water be described as smelling like rotten eggs or sulfur? If this has ...