[Jukebox-list] WAY OT ??

[Wesley Dean]

    Ron, I know just about nothing about hydraulics, but I have heard of the 
tram 'water hammer'. Also a blind container placed in the water line full of 
air. This volume of air will compress easier than water and will cushion any 
vibration caused by ant high speed valve action. I have seen loose washers 
in faucets cause a terrible vibration that shake the walls of the house. If 
you are alone when this first happens to you will send you to the laundry 
room.
    Tinfoil does not help those that are not paranoid. Wes
----- Original Message ----- 
From: "Ron Rich" <ronnnrich at yahoo.com>
To: <jukebox-list at lists.netlojix.com>
Sent: Saturday, July 08, 2006 6:05 PM
Subject: [Jukebox-list] WAY OT ??


Hi All,
  This is way off topic--but I am going "crazier" (then I ever was?) over 
this, and I hope some smart person out there can point me in the correct 
direction.
  Every night about 7:20 pm, for the last three nights, the wall behind my 
40 gal natural gas water heater starts to oscillate at about 80-90 cycles. 
It is a steady pitch. We can hear the hum through the whole house. It can be 
heard in the water heater itself (if you put your ear up to it), though, it 
sounds much louder in the wall. It can be felt, in the 4 inch waste pipe 
that runs down from the upstairs bathroom about three feet from the water 
heater, the water heater inlet, and outlet pipes, and, mostly, in the wall.
  The first night, I tried turning the water on in several outlets in the 
house--no difference, and I checked every outlet for water leaks. Then I 
grabbed a small "2x4" and hit both the cold and hot pipes on top of the 
heater--that stopped it.  The second night I again took the "2x4" and gave 
them a whack--did not stop, so I turned off the cold inlet to the water 
heater--that stopped it. Last night, I just turned off the inlet valve--did 
not stop the noise. I then went outside the house and turned the main valve 
off (other valve was still off), and it stopped.
  I know that this sounds "nuts"--but it really happens--
  A couple of things that I am considering, I live about two miles from SF 
Airport, and they have put up a couple of cell phone towers around here in 
the last few months-- one about 100 yards from my house--
  Anyone have any ideas?? (Or, is it time to use "tinfoil" on our heads?) 
Thanks, Ron Rich


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