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Re: [APD] pH control

Thats a good alternate Jerry. Such a need has never risen at my end.

>Raj wrote:
>> Pump water through a chamber with some sea shell powder
>> or other lightly soluble alkaline substance and switch the
>> pump on/off with the pH controller.
>I would think the best way to go about this would be a dosing pump and a 
>strong alkaline solution of KOH or similar. Just use the pH controller 
>to turn the on the spigot for the alkaline solution. The only potential 
>problem I see is the corrosive nature of KOH or NaOH on the valve.

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