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Difference In HWR Pressure

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ThreeMG
ThreeMG Member Posts: 3
edited October 2021 in THE MAIN WALL
Hey fam,
Recently I observed the pressures on the Return line gauge aren't the same. One measures 45psi just before returning into the boiler and the other measures 16psi. Please what could be the explanation to this? Thanks

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  • JUGHNE
    JUGHNE Member Posts: 11,061
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    If you have the typical boiler the relief valve would open at 30 PSI, you would notice this.

    What does the 45 gauge read when boiler off and cool...compared to the other gauge?

    Maybe new gauge time.
  • ThreeMG
    ThreeMG Member Posts: 3
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    Well, it's always been on, I am have no clue of what the pressure is when turn off because it's always been working since I joined the system. Thanks
  • neilc
    neilc Member Posts: 2,703
    edited October 2021
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    can you turn everything off for 5 minutes?
    including any circulators?
    if so, hot or cold, the 2 gages should read ~ the same, as long as they're at ~ the same height in the system,
    are the gages on different sides of the circ?
    known to beat dead horses

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