[Delphinus]

I dose RHF's recipe for 2-part using a ghetto automated process. I run 2 timers for one minute every 6 hours but offset 3 hours. Ie., one runs at 12am, 6am, 12pm, 6pm; the other at 3am, 9am, 3pm, 9pm. These in turn run 4 aqualifter pumps (2 for each timer; these feed 2 separate tanks) that drip into the sump, and I use irrigation dripvalves to control the drip rate. So I'm not too sure what the daily doses are but I just sort of adjust the driprate up or down depending on whether the parameter needs a bump or some slack. One tank is bigger than the other so it has a slightly faster driprate. With this routine I seem to go through about 1gallon of each additive in a month.

I test big 3 numbers weekly, or more often, as needed, if I'm doing an adjustment.