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Water Level


I have a steam system.  Every time i drain the water to the correct level on the water gauge, it will go to the very top of the gauge in a few days.  Why do this happen? Do you think my automatic feed is faulty?




  • Alan (California Radiant) Forbes
    Dirty Mains

    It might take a long time for the condensate to return to the boiler because the mains have mineral build-up or sediment blocking the way.  By the time the water comes back, the boiler has already replenished itself and the water level goes up.

    Also, your main vents may not be working, causing a vacuum.  Check them and make sure they are both letting air out and back in when the system turns off and cools.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • kcopp
    kcopp Member Posts: 4,432
    another possibilty.....

    is that if the boiler has a tankless coil for your hot water ... it may have a pinhole size leak in it....kpc
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