It seems to me like the term “flushing” is somewhat vague and often when people use that term they are referring to a water only period at the end of the grow, not necessarily running huge amounts of water through the medium. I believe it’s possible to feed super heavy salts for the first 40 days of flower, then taper them down to just water for the last 1-2 weeks and get great tasting weed. This has been a tried and true method of growing great weed (in any medium) for a long time from what I understand. Go back and look at some of the OG discussions from the 2010 era on this site and others, tried and true methods of growing dank with a long water only period at the end. recipes like REZdog on ICmag or the SFV OG kush recipe on thc farmer. Are people actually feeding full or even half strength nutes at the end of flower? Yuck. I’ve accidentally done that too many times and I prefer to taper the nutes to mostly water only at the end.
