Hello Our bathroom shower is making some sort of weird noise when water turned off, as if it is taking some air inside. Following is the report from the house inspector: When I turned off the bathtub water while it was in the shower mode, there was a good deal of water hammer. When I turned off the bathtub water while it was in the bath mode, there was not. Have a plumber evaluate and repair the water hammer prior to the end of the inspection period. Thanks in advance for your help.