In my laundry room, I've been hearing an *extremely faint* high pitched
sound. It is so high pitched and faint, I almost couldn't tell where it
was coming from. Finally, I determined it was coming from my 8 year old
gas hot water heater.
I then noticed that when I touched/bumped/jiggled the, "relief valve,"
pipe coming out of the side of the hot water heater, the high-pitched
sound changed a bit.
So...... perhaps the high-pitched sound is just a tiny bit of air coming
out of the relief valve pipe?
Anything to worry about????