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Condensate drain pipe cleaning on a Weil-Mclain Ultra 105 Series 2 Hot Water Boiler

arthur88
arthur88 Member Posts: 1
in Gas Heating

At the bottom of the boiler there is a U shaped condensate drain pipe and it's filled with white cloudy water with minerals and junk. It comes off easy once the clamps are loosened.

After cleaning it, I read somewhere that I have to put water back in the pipe. My question is: will water flow back into the system automatically once I start it up again? I'm 95% sure that after this I will also have to bleed the air out of the system… Would that be correct?

Comments

  • 109A_5
    109A_5 Member Posts: 2,203

    Hello arthur88,

    Hope this helps.

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • HVACNUT
    HVACNUT Member Posts: 6,607

    You don't need to touch the system at all. The drain is not connected to the heat zones.

    Series 2 is still going strong? Did you inspect the bottom on the block while working on the drain? The drain, neutralizer, condensate pump if used is part of the annual maintenance.

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