Master Brian
DIY Senior Member
My bathtub, which is a clawfoot tub - if that matters, gurgles when it drains. Is that normal? I can't recall if my other house's tub did this or not. Maybe a little, but this seems loud. It doesn't do this when anything else drains.
The tubs drain is 2" PVC, it T's into a vertical 4" vent/drain stack, which drops about 1-2' before going into the main 4" sewer line. Above the "T" is cast, below is PVC. From what I can figure out there is nothing else dumping into this 4" vertical pipe. So it only serves the tub's drain and vent. The cast terminates the roof.
Google searches seem to say gurgles are the result of a clogged vent, but they also seem to only talk about gurgling when trying to drain two fixtures at once.
So, I wonder, is this normal due to the water draining really quickly through the 2" line or do I need to look into having the 4" cast iron vent section snaked.
The tubs drain is 2" PVC, it T's into a vertical 4" vent/drain stack, which drops about 1-2' before going into the main 4" sewer line. Above the "T" is cast, below is PVC. From what I can figure out there is nothing else dumping into this 4" vertical pipe. So it only serves the tub's drain and vent. The cast terminates the roof.
Google searches seem to say gurgles are the result of a clogged vent, but they also seem to only talk about gurgling when trying to drain two fixtures at once.
So, I wonder, is this normal due to the water draining really quickly through the 2" line or do I need to look into having the 4" cast iron vent section snaked.