
Guys, It's not IF these products work I'm questioning, but
how they work in fact vs hype,... Blue's right, some clarity is needed in how we define cleanse and flush....a
cleanse is just a period (week or so, depending on how heavily and what you fed-organic, synthetic), of no nutrient inputs of any kind prior to harvest, a week or so typically, to help clear out extra lingering nutrients and carb's,...doesn't include pouring 1-3 times the pot volume through the media, like in flushing...Flushing is a full-on rinsing process of whatever medium to remove excess salts, nute's, and/or to help correct off pH's... (it's not just for preharvest alone; some folks do a routine flush between grow and bloom feed regimes, or if feeding heavily with synthetic nute's, to keep salt build-up levels low).. They both achieve the same ends as far as purging the plant of internal excess stuff, but flushing is a more aggressive process because of the volume of water used.... The flushing agents are basically surfactants that help knock loose the cations that are bound up to the medium particles, removing them from the root field, doing more than water alone will do... (look up CEC, cation exchange capacity)... Other
enzyme-type products, (not a flushing agent), help break down organic matter, from whatever source, and free up the nutrients they contain to the soil microbes and plant,...All this makes for better quality smoke vs. a plants that gets harvested still loaded with nutrients, etc.,... There are synthetic and organic based flushing agents,.. I like Sledgehammer, an organic one, that's made from yucca extract that has saponins in it... yucca is very widely used in a variety of plant products...not sure what the synthetic stuff is made of....
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Pal - the problem with such a test is that it's too subjective,... Not to say it isn't worth a try, just be cautious about the conclusion you may reach; each individual plant- and pot- is it's own little ecosystem, and though they may start the same, they don't end up the same in terms of what's in the plant, and medium by harvest...also, it's not a good idea to waterlog your plant just prior to harvest,... they're best harvested starving and a little thirsty! ...LOL! I hate to get picky, but flushing and "nute's" don't go together,.. there's nothing nutritional about flushing agents, and they're not taken up by the plant, even the organic stuff! .
.Invincible, it depends on what nute's you're using, and how heavy you feed,.. when using fully organic nute's, by general consensus, don't really require a cleansing, much less a flushing... TLO soil's are actually harmed by flushing; it's all about the soil herd with these type products and soils,...they do the breakdown of various nutrients, cycling them, changing them into forms available to the plant and to each other,... synthetic nutes are often salt based, more concentrated, and thus can more readily lead to excess build-up,... so, if you used synthetic's, and fed pretty aggressively, a flush a week or so before harvest would be fine,... otherwise, a cleansing period alone should be fine,... plenty of contention and opinion on this though!
