Is your system a closed loop system?

I believe, adding salt alone will not remove the heavy metals that are
present in the water.  To be sure, you need to measure the resistivity of
the water.  We use DI here and we're getting readings of 10 to 15 mega
ohms.  I believe the water is deemed DI is the resistivity is above 4(Not
sure).

Tom

At 02:40 PM 3/30/01 -0600, you wrote:
>Help.....  I have recently been assigned the task of justifing our water
wash system.
>Here is what I know:
>
>1) Spray over Spray Westkleen system
>2) For some reason using softened water not DI.  The softening is
accomplished through sodium addidtives (got me going).
>
>What I am expected to do:  Determine what is the effectiveness of the
process.  Justify why DI isn't used and why adding salt to the wash to
remove salt is ok.  Then determine the water surface tension and content
(hardness, contaminates present, etc)
>
>TIA
>KK
>
>Attachment Converted: "C:\Tom\Attach\TEXT.htm"
>

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