Randy Holmes-Farley
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My Tank Thread
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We run custom made 5 foot tall kalk reactors on our systems. They have their own controller so that we can set the Ph that we want the systems at and it doses appropriately. It has a Ph probe connected to the controller so I can monitor saturation and know when to add more kalk, and I can adjust the stirrer speed to ensure that it is constantly fully mixed. Currently dosing about 10 gallons per day to each system. Ignore the mess, we are doing some cable management LOL
pH is a relatively crude way to gauge potency. A 0.1 pH unit drop corresponds to a 21% drop in potency.