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Re: Sodium hydroxide in local drinking water

> From: NightFlight <ecwh at cogeco_ca>
> Subject: Sodium Hydroxide in local drinking water.
> It states that sodium hydroxide is used in oder to raise the PH and 
> prevent corrosion, thereby lowering lead and copper levels. Fine and 
> dandy, but this will have an effect of measuring Co2 via kh/ph? I think 
> I already know the answer.

	It will have no effect whatever on it.  Why?

	OH-  +  CO2  ->  HCO3-

Any that is left over is turned into bicarbonate at the sort of pH
that interests us.

Paul Sears        Ottawa, Canada