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Sight glass water surging and bubbles coming from the top

I recently went to a new install for the company where I work it is the old church in Paterson New Jersey. There was two rooms on the far side I would say the furthest point from the boiler first floor office second-floor office that weren’t getting heat. One issue I found was there was no vents in the mainline at all one pipe system. Other issue I saw was when the system is on and producing heat the water level would drop almost about an inch from the bottom of the valve assembly of the sight glass.Then once the water level dropped it would be constantly pouring from the top with bubbles I want to know if that’s a venting issue which I strongly feel it is any help would be great help let me know please

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 23,270
    New install? That is, new boiler and some new piping? Has the boiler been skimmed -- and skimmed -- and skimmed? Did a well-intentioned soul put a boiler treatment in? if so, what -- and how much? What you are seeing is not a venting issue, but is most likely a very severe case of surging.

    Also, how is the near boiler piping? At least as good as the manufacturer's minimum standard? Some photos of that might be nice... as poor near boiler piping can aggravate the problem.

    Which is not to say that you don't need main venting. You do. But that's not what you're seeing.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Hap_Hazzardethicalpaul
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,510
    @Jamie Hall is right
    skim, skim, skim and let's see the piping
    Hap_Hazzardethicalpaul
  • ethicalpaul
    ethicalpaul Member Posts: 5,701
    edited March 2021
    Hi Neighbor!

    Yep it’s “carrying over” gallons of water into the mains. Do they have any water coming out of vents?

    ps: it looks like this: https://youtu.be/WSRvvNQ5WLc
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
  • chuckadoo
    chuckadoo Member Posts: 30
    @Jamie Hall  @EBEBRATT-Ed. Is skimming a new install, mainly to get manufacturing process oils off the water? 
  • Jamie Hall
    Jamie Hall Member Posts: 23,270
    chuckadoo said:

    @Jamie Hall  @EBEBRATT-Ed. Is skimming a new install, mainly to get manufacturing process oils off the water? 

    yes, and it takes time and patience. A lot of both. But -- anytime new pipe is installed in the system, it is wise to do it.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Hap_Hazzard