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  1. jj_hah

    Control Valve transfer functions assistance. Any help is appreciated.

    I have an effluent treatment plant that brings pH of effluent to between pH 6-9 through multiple tanks. The flow coming out of the last tank must have a pH of 6-9. It is followed by a pump and then 2 valves figure included). One valve goes to a river, which is why pH must be close to neutral...

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