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Clock Time in the Forum by Wagner
To Whom It May Concern: It appears that the running clock time in these forums is off by one hour; ...
RE: Differential Settings on Operating Pressure Control by Wagner
Dear Reed: In response to your questions: The school boiler that I am operating did not have much ...
RE: Water Column by Reed
I'm glad it took me a while to get to this question and Bob beat me to it. The answer is better tha...
RE: boiler licensing juristictions by Reed
These would also be of interest (from Bob's link): (13) hot water heating and other hot liquid bo...
RE: Differential Settings on Operating Pressure Control by Reed
Richard, I think I see your concern here. First, I wouldn't worry about a stable steam pressure....
RE: Differential Settings on Operating Pressure Control by Wagner
Dear Reed: Thank you very much for the thorough reply to my question about setting the subtractive ...
RE: Differential Settings on Operating Pressure Control by Reed
Richard, First of all, I would like to apologize for not getting back to you for so long.  I...
RE: Water Column by RBob
Hi Steve: .433 pounds per square inch per foot of water. Another way: A 'column' of water that...
RE: boiler licensing juristictions by RBob
Hi Steve: I think that your question might better be worded as "What boilers are exempt from operat...
Water Column by stevenaudette
  In class we were given the value for a water column. 0.4433…??? I’m looking for the exa...
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Subject: water treatment/ hot water boiler -closed loop
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Bob GUser is Offline
Novice Member
Novice Member
Posts:3
02/04/2010 10:19 PM  

On a hot water boiler closed loop system that was recently installed approximently two years ago, I didn't know if it was ever chemically treated and recently encountered a safety valve that was leaking water.Does it make any sense to pump in two to three hundred dollors worth of chemicals into the system without  testing the water condition first? This has been a Boiler Operator debate at my workplace.

Bob Gallas
paul1959User is Offline
Very Active Member
Very Active Member
Posts:103
11/09/2010 9:34 PM  

In my opinion, it all depends on if it is soft or hard water.  If soft, you will be concerned with corrosion.  If hard, scale will be the issue.  So I would calculate the gallons of water and the ppm wanted and pump in the right amoun t of scale and corrosion inhibitor.  No matter if soft or hard, you will want to use an oxygen scavenger as well.
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