Loud vibrating sound after flushing toilet, using wash basin
Hi,
The townhome I am living in is just 5 years old. From the last one and a half months, in the master bedroom toilet, we have been hearing loud vibrating sound after we flush the toilet or even after we use the counter top. Initially, about a month back, we would hear this sound only once each time we flushed the toilet. Slowly the number has been increasing. Yesterday after we used the bathtub, we heard this sound around 10 times. I am not very familiar with plumbing. I am thinking of getting a plumber. I was wondering what this noise can be. If it is trivial, I will try to fix it. I would appreciate any help.
Thanks!