I have 15 year old house with city water. I just started to hear pipes
bang "Water Hammer" I am not sure if this was coming before or just
came to my attention. I moved in this house about a year ago. I have
replaced every single fill valve in all the toilets. No matter which
faucet I turn on the noise is always there. It comes when any water is
turned on including dishwasher, washer, toilet shower or any other
faucet in the house. I don't want to install water arrestor all over
my house. This happens on both hot and cold water. I have read
multiple articles on the website and tried variuos things including
flusing out the entire system by shuting main valve and then closing
all facuet starting from basement. By the way the basement is finished
and looks like all pipes are nicely secured & anchored. Any help or
suggestion would be greatly appreciated.

Thanks
Ann