awalts

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• Posted in thread: knocking sound only when water is off on 11-19-2012 at 11:16 AM
  It turned out to be the Water Pressure Reducing Valve. I lowered the household water pressure
  (loosened the valve) and then slowly brought it back to the original pressure. And the knocking
  went away....

• Posted in thread: knocking sound only when water is off on 11-06-2011 at 06:50 PM
  I have an update to add to this knocking issue ...I bought a pressure meter and attached it one
  of the outdoor spigots. Normally the water pressure is about 70 psi and the needle does not
  move. Howeve...

• Posted in thread: knocking sound only when water is off on 10-23-2011 at 02:59 PM
  I turned off the water to each toilet (and then all of them at the same time), and the knocking
  still persists.The two valves (one shut off, one not) go to the outside spigots (front and
  back). The kn...

• Posted in thread: knocking sound only when water is off on 10-20-2011 at 04:31 PM
  Nope, I have a normal gas heating system, not a hydronic one. The pipes are just cold water
  lines coming off the main and heading to the outside spigots. The tags were put on by the house
  inspector ju...

• Posted in thread: knocking sound only when water is off on 10-19-2011 at 05:57 AM
  I wish it were as a simple as a woodpecker. But the knocking is as likely to occur at 10pm as
  10am. I have had the water off to the house for periods of 8 hours and not heard the knocking.
  When I do h...

• Posted in thread: knocking sound only when water is off on 10-18-2011 at 05:39 AM
  paul52446m, there is a PRV where the cold water enters the house. If this is the source of the
  knocking, how do I prove it and how do I replace it?redwood, if it is a leaky toilet, then I
  should be ab...

• Posted in thread: knocking sound only when water is off on 10-18-2011 at 05:35 AM
  paul52446m, there is a PRV valve where the cold water comes into the house. Can this be the
  cause of the noise? If so, how do I prove it and can I easily replace the valve?Redwood, If it
  were a toilet...

• Posted in thread: knocking sound only when water is off on 10-17-2011 at 07:18 PM
  As shown in the videos, the noise is a rapid, loud, rhythmic beating that can change in tempo,
  duration (usually 30 seconds or less), and volume. The noise always comes from the same
  location in the h...