"mm" wrote in message
...

e. I don't want to install water arrestor all over the place

But it's not called a water arrestor, I don't think. What is it
called?

It is an accumulator. It might have different commercial names, but
technically it's an accumulator. If you put one at each faucet that causes
pipe banging, the pipe banging will go away. Not sure if it's worth the
money, it might be easier to identify the pipe that is actually banging and
put the accumulator between that and the faucets if possible. An accumulator
performs a similar function to filter capacitors in a power supply in that
it maintains a more constant pressure when there are transient spikes in
load. It prevents the current surge that causes pipe banging.