I think in DWC
using just water for the last 2 to 4 weeks, can save a load on plant food but also you can get crazy ph swings
I`d keep a barrel of stable water for putting the plants in for the last few days, means I could clean up what they were in and get the next plant moved over
I`m all for using less food near the end to save money so long as nothing bad happens because of it
but people using just water, I`m not sure if that was started because of all the salts and buffers a lot of 1 and 2 part liquid feeds have in them ?
Most of the stuff that`s not "hard water" or "soft water" or self ph`ing, that stuff seems to be fine
but some foods have boost`s pgr`s and salts and all kinds of buffers in them, not using them for the last 2 to 4 weeks or at all might make weed taste better
but sugar, molasses and honey always makes it taste better in coco and keeps the bugs in the root zone
Don`t think doing sugar water in DWC would last very long think you`d get rot in 2 to 10 days
As for the aspirin, it actually helps plants yellow their leaves faster and can be used as a root stim
I like it for when a plant is close to finish but most of the leaves or all of them are still green
add some aspirin and they suck up the fan leaves and put that sugar in the buds, depends how a plant looks as to weather or not I use it, if it`s all yellowed up already then you can just chop it at night normally no real need to flush, I try not to give any "boosts" for 2 to 4 weeks some stuff 6 weeks before the end, even seaweed extract and such I don`t like to "waste" on the last 4 to 6 weeks, plus we use large sacks so I`m sure it takes a few feeds of sugar water before the coco is out of nutes, and also all the bennies we use must be turning that sugar into some good stuff for the plants
also sugar means the microbes in your rootzone and make extra co2
and probably flushing with silicone would give you more CBA during the last weeks that would give you more thc after chop/cure, but you never see any one say in coco and hydro that silicone flush is key, lol