Another quick, inexpensive fix for the sound, if it is a problem for you, is to place an inexpensive mouse pad under the hookah. It will isolate the vibrations from the bubbling and also provide a nice slip preventer, though I've never had a "slip" problem with mine. Just a thought. The diffuser is a good idea, as well. Smoke happy.
Originally Posted by inhalexhale
Will the bubbling noise make the ground rumble? (again im on the second floor) prob should just skip this question and make a diffuser,