Flush toilet and pipes vibrate!
#1
The master bathroom backs on the other bathroom in my house, but it is the one that is at the end of the drain line. When the toilet in the master bathroom is flushed, after it is nearly finished filling back up with water, the pipes under the house shake and vibrate so hard you can feel them through the floor. I don't know if it is the drainage pipes or the water pipes though. How can I tell which pipes are shaking, what is causing it, and how can I fix it?