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condensate tank vent sucking air

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m2158
m2158 Member Posts: 2
in Strictly Steam
when pump is on vent blows air out when pump shuts off vent actually sucks air in and shakes

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  • Brad White
    Brad White Member Posts: 2,399
    3-Phase Power?

    If the motors are three-phase, they may have reverse polarity and may be running backwards. There is still forward motion through the pumps but it is greatly diminished. Might the pumps be installed backwards? A pump with equal inlet and outlet flange sizes may well have been installed backwards. Is it a duplex or simplex arrangement?





    If the pump stops working, sucks in air and shakes, I would have it tested for cocaine abuse.



     :)
    "If you do not know the answer, say, "I do not know the answer", and you will be correct!"



    -Ernie White, my Dad
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