[slief]

Originally Posted by zip70

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If I make it to the level I want with 2 part dosing, then how long I have to maintain this level before I turn off dosing pump to let the reactor take over?

You get your level to the target zone then shut off all dosing and test daily. If the alk levels rise, you slow down the reactor effluent and Co2 rate or reduce co2 rate to increase the pH in the reactor which will decrease the alk level of the reactors effluent. If the alk levels drop, you increase the effluent rate and or increase the Co2 rate (drop ph in reactor and raise the alk level of the effluent). Then test the tank water a day later and reassess. If it drops fast, dose again and test the following day after making adjustments to the calcium reactor until you find the sweet spot for the reactor. Continue to test regularly until you are confident that the reactor is taking care of things.