I agree with Todd I killed many plants sometimes it happens… No Worries Bro…
As long as your dehumidifier is clean (the filter and tank)… This water my guess will be less than 10 ppm. That water should be no problem to use… Just Add Cal/mag of course tho…
My Humidifier is hooked direct to RO system… Auto fills… (Not using at this moment tho) I’m keep my RH below 35% right now. So not needed right now…