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  1. #14
    Join Date
    Apr 2004
    Location
    Maryland
    Posts
    521
    Quote Originally Posted by valdelocc View Post
    No a common practice in my neck of the woods, typically the make up (street) water, goes through the filters,softener and to the condensate receiver. I wouldn't put raw,untreated water in,and wouldnt pipe it directly into the boiler for the obvious reason.
    Thats a great point that for some reason I overlooked. But true that I am dumping "untreated " water into the boiler. Although Im sure it is not there long before it is "diluted" with the treated makeup.

  2. #15
    Join Date
    Jun 2006
    Posts
    260
    Whenever we fill the boiler up with city water after draining it, we dump the chemicals in thru the manhole.

  3. #16
    Join Date
    Mar 2012
    Location
    South Carolina
    Posts
    11
    I think you may have air in system.

  4. #17
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,083
    Quote Originally Posted by oshieldsa14 View Post
    I think you may have air in system.
    You realize we are talking about steam system?


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  5. #18
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Quote Originally Posted by qwerty hvac View Post
    You realize we are talking about steam system?


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    Lol

  6. #19
    Join Date
    Mar 2012
    Location
    South Carolina
    Posts
    11
    yea its called steam locking or air binding

  7. #20
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,083
    Quote Originally Posted by oshieldsa14 View Post
    yea its called steam locking or air binding
    But that would not cause it to flood would it? If the air is trapped then water will not get past it.


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  8. #21
    Join Date
    Mar 2012
    Location
    South Carolina
    Posts
    11
    Your right but the problem wasn't the flood was it? It was after the flood when they drained the system and refilled it. Or did they even put any water back in the system. Maybe not a air problem maybe not enough water. Could be a number of things maybe need more info about what all they have checked and done.

  9. #22
    Join Date
    Jan 2013
    Posts
    20
    The supply lines may have low points where condensate collected many steam systems are not the same as the original design and changes cause low points that are only noticeable when the system floods. You could try to increase the pressure to blow by these points. This is one of many logical possibilities that could cause this type of problem.

  10. #23
    Join Date
    Jan 2013
    Posts
    20
    One other point and something I am dealing with now at a location. The air vents at some time were capped off and in order to heat the building the pressure was increased from 1.5 lbs to now nearly 5 lbs. We are in the process of uncapping these vents which should allow for a lower pressure in the system etc. Old steam systems are very tricky.

  11. #24
    Join Date
    Jan 2013
    Posts
    20
    Just a note the system I am referring to has a dry return. It is important to know if you have a dry return or liquid.

  12. #25
    Join Date
    Jul 2012
    Location
    Western KY
    Posts
    1,221
    Yikes. Oh no my boiler low on water and over heating. Here I'll jus open this BOOM!!!!!

  13. #26
    Sounds like a trap issue to me. My guess would be possibly a damaged or stuck riser trap somewhere, but we would need more information about your system layout to diagnose it.

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