Not sure if this is the right forum, but here goes.
I have a chilled water system which uses an atmospheric storage tank, so I guess you'd call it "open-loop," although the system hardly loses or makes up any water at all. I had a mild steel corrosion coupon in the system, which after a month, showed <.01 mil/year loss. The way I understand it, the water is non-corrosive, and our water treatment program is working well. Are there any conditions where I still could have active corrosion of the steel piping in the system, and it not show up on the coupon? System circulation is good, so all the metal is seeing the same water.
---KenRad
I have a chilled water system which uses an atmospheric storage tank, so I guess you'd call it "open-loop," although the system hardly loses or makes up any water at all. I had a mild steel corrosion coupon in the system, which after a month, showed <.01 mil/year loss. The way I understand it, the water is non-corrosive, and our water treatment program is working well. Are there any conditions where I still could have active corrosion of the steel piping in the system, and it not show up on the coupon? System circulation is good, so all the metal is seeing the same water.
---KenRad
