We purchased our 23 year old home that has 2 full size baths. The spare bathroom sink when the hot water is left on emits a "jack-hammer" noise from the wall behind it. We contacted a plumber who indicated it was the pipes ($). The noise immediately ceases when the hot water is turned off. It is an annoy-ance, but we live with it.

Now as of two days ago, the toilet (right next to the sink)emits a very loud & long "jackhammer" like noise during flushing. The toilet flushes fine. As far as we know the toilet may be as old as the house. We have no problems with the toilet itself - 'til now. This noise is much more than a tolerable annoyance. The pipes in the wall (same area as for the sink)vibrate (?) longer than the sink did.

Is there an easy fix? Has anyone had this problem before? Your feedback would be greatly appreciated. Thank you.