It depends on what you are rinsing.

LK

On Wed, 20 Jan 1999, N Radhakrishna wrote:

> We are installing a R O plant to recycle effluent water. We find that the
> Total dissolved solids to be alright at 60 PPM but find that the copper in
> the water to be about 1 PPM.
>
> Is there any bad effects of presence of copper in rinse waters. Whereever
> criticallike bath makeup,gold plating etc we use DI water.
>
> If no how much is tolerable.
>
> An immediate reply on the above will be much appreciated.
>
> Regards
>
> N Radhakrishnan
>
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