Re: Distilled Water?

Posted by buickanddeere on July 31, 2005 at 16:57:28 from (216.183.146.189):

In Reply to: Re: Distilled Water? posted by Joe (Wa) on July 31, 2005 at 12:14:47:

A little hydrazine is added to scavenge the oxygen from the boiler water. O2 is a major problem in any water system.
Then keep the ph acidic until some black magnetite layer is formed on the carbon steel pipe. Then keep the ph close to balanced to slightly acidic.
There cannot be any salts or metal ions in suspension in the boiler feed water or steam. If there is the copper/brass/bronze is going to get eaten away particularly when the ph gets out of whack. And scale/metal will deposit on the heat exchanger/boiler surfaces.
Soft water is some of the worst stuff to use. It's loaded with sodium.

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