Pressure Reducing Valve: Bad?

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by JohnnyO, Apr 7, 2013.

  1. JohnnyO

    JohnnyO New Member

    Messages:
    29
    Location:
    Twin Cities, MN
    Reading up on household water pressure, it seems the 90-95 showing on my PRV is too high.

    I'm assuming the pressure shown as actually post-reduction, and not the street pressure, but I can't find any reference to this Wilkins Model 70 value that also shows the attached gauge, so I'm not positive.

    This was new about 5-8 years ago.

    Does this value need to be replaced, or should I try adjusting the valve via the screw, or is the pressure displayed actually the pressure BEFORE reduction?

    Thanks,

    John

    Attached Files:

    • PRV.jpg
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  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,000
    Location:
    Bothell, Washington
    [video=youtube;KOpORLuw8eA]http://www.youtube.com/watch?v=KOpORLuw8eA[/video]
  3. JohnnyO

    JohnnyO New Member

    Messages:
    29
    Location:
    Twin Cities, MN
    Thanks for the link, Terry. That repair process looks very straightforward.

    John
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,000
    Location:
    Bothell, Washington
    I would try adjusting it first. You can also pick up a gauge at a hardware store that works with your outside hosebib to check pressure too.
  5. fixitright

    fixitright New Member

    Messages:
    12
    Location:
    Minnesota
    What a nice tutorial.

    Wouldn't it be nice if more companies did this with their products?
  6. valveman

    valveman Moderator Staff Member

    Messages:
    4,459
    Location:
    Lubbock, Texas
    Yeah that gauge should be reading donwstream or house pressure. Looks like the bolt is tightened down a bunch. Try loosening off on the adjustment bolt.
  7. JohnnyO

    JohnnyO New Member

    Messages:
    29
    Location:
    Twin Cities, MN
    I will try backing off on the bolt to see if it brings the pressure down.

    Thanks.
  8. JohnnyO

    JohnnyO New Member

    Messages:
    29
    Location:
    Twin Cities, MN
    I ordered and received the repair kit. With that in hand, I did get a second gauge and connected it to an outside hose bib to double check the pressure. They matched (within 3-4 PSI). I adjusted the knob out about 1/2 inch, ran some water, turned off the water, and noted no change in pressure.

    Next step - do the repair kit. I think I'll wait to tomorrow for that.

    I appreciate the advice!


    John
  9. JohnnyO

    JohnnyO New Member

    Messages:
    29
    Location:
    Twin Cities, MN
    PRV repair completed! [It took one borrowed big wrench for the bell housing and one purchased 1 1/8" socket for the cartridge removal, but other than that, it went smoothly.] Thanks for the guidance!

    Best of all - 6 hours after the repair, and no leaks!

    John

    Attached Files:

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