White Widow, don't kill me

I finally moved Lil' WW into the tent yesterday, after spraying down the interior with a peroxide solution, just in case there was some funk left over from Blewitberry's cursed grow. She looks none the worse for rooming with me until now. She's been under the spare 100W full spectrum grow light. Not planning to add any nutes this week, just filtered tap water and maybe some distilled. I also plan to not do any stress training. I want one good basic grow under my belt before I start actively annoying my plants. I'm a little annoyed with my controller setup. Toward the end of the Blewitberry grow, I got it really dialed in so that it sat pretty steadily at my target 1.20 kPa for flower, with the exhaust fan and humidifier barely running. This time both are running more, and the kPa is staying up in the 1.4 to 1.6 range most of the time. Comparing the automations, I can't figure out what is different now. Also on the ACI gear front, I got a set of Ionbeam S16 light bars. I think I'll install them vertically on each of the main corner tent poles. 17-Oct Some combination of fiddling with settings and a big cold front dropping outside temps by 30 degrees F has stabilized things a bit, but I am going through about 3L of water per day in the humidifier.