On May 13, 12:52*pm, BMzxx wrote:
about a month ago our pipes started humming when the water was turned off
in the shower. *Then it started doing it when one fo the toilets was
flushed. *Now its doing it when the cloths washer is on. *I've also noticed
in the last few days our water pressuer is not like it used to be.
when the humming starts i can open an faucet and it tops right away?
would draining the water pipes and refilling them help? *would anything
else help?

thanks

"I've also noticed in the last few days our water pressuer is not
like it used to be"

Does that mean it's higher or lower than "it used to be"?

My recent water hammer problem was due to a faulty pressure regulator
which wasn't reducing the street pressure at all.

A $60 regulator solved the problem.