It depends on the feed being used to flush organics u use hot to boiling water to kill off the roots and shut the stomata that tells the plant to use the nutes inside the plant and the microbes die so they can't feed the roots and it cleans the soil out for the next grow basically making ur soil...
Boiling water or hot water is used as a flush in organics and there are reasons it's done and it's done 5 days before harvest now I wouldn't do hot or boiling water for synthetics
Ok check it I just did this cycle 48hr just ended and I can for sure say that trichomes increased due to the stress cause some buds that barely had any frost on them now are covered
She's an auto northern lights from Royal queen seeds she did better than my apple sherbet idk why but she foxtailed for no reason unless she's a foxtail strain and I ain't know but she's more frosty than the NL and smells way better she's stronger smelling but that apple sherbet is all fluff all...
I feel your pain bro my northern lights auto took a turn for the worse got the same feed as my other auto she just didn't take to it waiting for her to finish this month I think Im gonna stick to organics