My neighbor is directly below me. You cannot hear dripping unless I plug the tub and fill it a little and then let it drain. I have a soaking tub so it doesn't even come close to the over flow. There is no water damage below. When you just let the water run full without plugging the tub you cannot hear the dripping below. Only when I fill it and then drain it. There is no access unless I tear out a ceiling or wall.