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jmhart · 01-09-2009, 10:49 AM

I use both....redundancy redundancy redundancy.

Originally, I used only the drop checker, but when I acquired the pH contoller, the drop checker was useful in determining what pH to set my controller at.At it's heart, a pH controller uses the same concepts behind the pH vs KH table, which we've all read can be slightly inaccurate. That's why it was nice to have had my drop checker setup and working at the co2 level I wanted, pop in the pH probe, let it adjust, and then tell the pH controller to keep it at that pH.

Now, with both working, I can get an idea if it's time to recalibrate either of them.

01-09-2009, 10:49 AM	#4 (permalink)
jmhart Senior Member Join Date: Nov 2007 Posts: 124 iTrader Ratings: 2 iTrader Positive Rating: 100% Plant Points: 7250	Re: PH controller vs. Drop Checker I use both....redundancy redundancy redundancy. Originally, I used only the drop checker, but when I acquired the pH contoller, the drop checker was useful in determining what pH to set my controller at.At it's heart, a pH controller uses the same concepts behind the pH vs KH table, which we've all read can be slightly inaccurate. That's why it was nice to have had my drop checker setup and working at the co2 level I wanted, pop in the pH probe, let it adjust, and then tell the pH controller to keep it at that pH. Now, with both working, I can get an idea if it's time to recalibrate either of them.