Noticed my PH was spiking at the same time every night. I coincided this with the times my Alk dosing pump was running. First thought it was electrical interference. Realized that Alk raises PH. Was doing 20ml around midnight(1ml/min for 20 min) and 1ml/min around 4am when the spikes were occurring. Alk is also being dosed in the low flow section of the sump where the fuge is which is also where the PH Probe is. I spread the dosing out 10 doses of 4 minutes with 1ml/min giving the same amount but spread out over more time.
April 27, 2016 15:46