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  1. #1
    Member
    Join Date
    May 2013
    Location
    Wappingers Falls NY
    Posts
    1,016

    Back flush psi gauge

    My mercury gauge says my water pressure is 4-22 but my Phoenix gauge says it’s 0-10? Thoughts or ideas? Do I have to back flush it ?what you guys think

  2. Member
    Join Date
    Sep 2015
    Location
    Redfield, Arkansas
    Posts
    133
    #2
    Its always off. Your Phoenix gauge. I go by my smart craft gauge.

  3. Member
    Join Date
    Feb 2010
    Location
    Maple Valley, Wa. State
    Posts
    2,318
    #3
    .
    Last edited by Tom Edwards; 05-23-2021 at 11:47 AM.
    "Everyone should believe in something; I believe I'll go fishing."

    -Henry David Thoreau

    Men and fish are alike. They both get into trouble when they open their mouths

    author unknown

    2015 Phoenix 919 225 Yamaha SHO


  4. Member 06 SB's Avatar
    Join Date
    Feb 2012
    Location
    West Point Lake, GA
    Posts
    11,011
    #4
    What motor? It matters! For example, The pee stream has no bearing on the amount of water going through the motor of Merc’s DFIs. It is simply the outlet of the compressor.

    USN Retired
    2020 Basscat Caracal
    2020 Mercury 225 ProXS 4s



  5. Member
    Join Date
    Nov 2016
    Location
    Delta - CA
    Posts
    121
    #5
    mine is like yours. Never really worked even though my dealer back flushed it. I think its the wrong one for the motor (225ProXS 4stroke). Probably going to look into changing it.
    2020 Phoenix 19PHX, Mercury 225 ProXS V8 fourstroke