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[APD] Ph controllers (was Re: CO2 System)
I'm reading this topic with great interest because I'm about to break down and get a pressurized CO2 system but being the cheapskate I am I'm shopping Ebay. Of course. There's a source there where systems are avaible for $150-$200 with needle valves, solenoids, bubble counters, and ph controllers and some of these systems also have reactors. I'm not famililar with the ph controllers. What advantage do they give a person? Do they automate anything or just give you a heads up due to the fact that you have a digital display that a test kit would not give?
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