Flushing VS Leaching?

[longwaters]

To flush is to run a large amount of pure water through the medium, useful with hydroponics. To leach or fade is to give the plant pure water instead of nutrients, more useful with organics.

Lower nutrient dosage as the plants naturally begin to take up less and then flush a few days before harvest if you are doing hydro. Feed straight water if doing organic, no tea or topdressing for the last few weeks.

 

[Dubya]

dubya, just curious, what medium u in.
im in promix hp, amended w ewc & chunky perlite, or sometimes just straight.
8 weekers flush 2 weeks, 10 weekers flush 3, i just use fresh h20, but also use drip clean nearly every watering when i have it around, its worth it imo. im not big on clearex or "flushing agents".
supernatural has a product called "qualtity cure" im interested in, u feed to plants 12 hours before harvest.... any1 got exp. w it?

im not a fan of 3x flushes, ime when i did it, the plants just stalled from overwatering untill harvest, where as if i did it gradual, like reg d2w or top water, the plants continue to swell thru flush.

also @ leaching thru bottom watering (in ebb & flo style or ebb & gro buckets) if u wanna leach proper u have to change ur water almost everytime. fresh h2o pulls so much salts from your medium... u wana toss that h2o & use fresh again or u r just feeding it right back into medium. same kinda concept as water curing. fresh water removes most from media.
does that make sense?


(& u r welcome for re-awakening this thread, even if it was due to ur troll flames, lol)

Haha well trolling can be fun sometimes. But that was not my intent originally it just turned into that. Oh well I'm over it and glad you seem to be also. But I don't think sweetestsin likes me too much.

I'm in coco. If I were using promix I would definitely reconsider about how I go about flushing.

I've never tried leaching through bottom watering but that makes a lot of sense. Interesting what you say about it pulling the salts from the medium.

So an 8 week plant you start flushing at week 6 and a 10 week plant you start flushing at week 7? That should give them a nice fade. I've been flushing the last 10 days and sometimes let them go a bit longer.

To flush is to run a large amount of water through the media, useful with hydroponics. To leach or fade is to give the plant pure water instead of nutrients, more useful with organics.

Lower nutrient dosage as the plants naturally begin to take up less and then flush a few days before harvest.

This brings me back to my original post. Just looking at the words themselves this is what makes the most sense.

But it seems that people on the forums pretty universally have these two words reversed.

 

[ImaginaryFriend]

'Leaching' a describes the even wherein liquids dissolve soluble minerals (in our case) as it passes through media.

'Flushing' is the process of dumping the water through the media.

Not interchangeable. But not a big deal.

FREE ONLINE DICTIONARY (I didn't edit out the part where your face gets red. Maybe it's informative.):

leach (lch)
v. leached, leach·ing, leach·es
v.tr.
1. To remove soluble or other constituents from by the action of a percolating liquid.
2. To empty; drain: "a world leached of pleasure, voided of meaning" (Marilynne Robinson).
v.intr.
To be dissolved or passed out by a percolating liquid.
n.
1. The act or process of leaching.
2. A porous, perforated, or sievelike vessel that holds material to be leached.
3. The substance through which a liquid is leached.

flush 1 (flsh)
v. flushed, flush·ing, flush·es
v.intr.
1. To turn red, as from fever, embarrassment, or strong emotion; blush.
2. To glow, especially with a reddish color: The sky flushed pink at dawn.
3. To flow suddenly and abundantly, as from containment; flood.
4. To be emptied or cleaned by a rapid flow of water, as a toilet.
v.tr.
1. To cause to redden or glow.
2. To excite or elate: The team was flushed with the success of victory.
3.
a. To clean, rinse, or empty with a rapid flow of a liquid, especially water: flush a toilet; flush a wound with iodine.
b. To remove or eliminate by or as if by flushing: "The weakness in demand and productivity will at least ... flush out some of the inflation premium that has been built into interest rates" (Fortune).
n.
1.
a. A flooding flow or rush, as of water.
b. The act of cleaning or rinsing by or as if by flushing.
2. A blush or glow: "here and there a flush of red on the lip of a little cloud" (Willa Cather).
3.
a. A reddening of the skin, as with fever, emotion, or exertion.
b. A brief sensation of heat over all or part of the body.
4. A rush of strong feeling: a flush of pride.
5. A state of freshness or vigor. See Synonyms at bloom1.

 

[Darth Fader]

im guessin flush refers to fresh h2o put thru ur medium (if any) and leaching is flushing w a flushing agent like clearex or the like,
i like drip clean, use it from start to finish

^This.

 

[greekgardner]

^This.

ditto

 

[noyd666]

'Leaching' a describes the even wherein liquids dissolve soluble minerals (in our case) as it passes through media.

'Flushing' is the process of dumping the water through the media.

Not interchangeable. But not a big deal.

FREE ONLINE DICTIONARY (I didn't edit out the part where your face gets red. Maybe it's informative.):

leach (lch)
v. leached, leach·ing, leach·es
v.tr.
1. To remove soluble or other constituents from by the action of a percolating liquid.
2. To empty; drain: "a world leached of pleasure, voided of meaning" (Marilynne Robinson).
v.intr.
To be dissolved or passed out by a percolating liquid.
n.
1. The act or process of leaching.
2. A porous, perforated, or sievelike vessel that holds material to be leached.
3. The substance through which a liquid is leached.

flush 1 (flsh)
v. flushed, flush·ing, flush·es
v.intr.
1. To turn red, as from fever, embarrassment, or strong emotion; blush.
2. To glow, especially with a reddish color: The sky flushed pink at dawn.
3. To flow suddenly and abundantly, as from containment; flood.
4. To be emptied or cleaned by a rapid flow of water, as a toilet.
v.tr.
1. To cause to redden or glow.
2. To excite or elate: The team was flushed with the success of victory.
3.
a. To clean, rinse, or empty with a rapid flow of a liquid, especially water: flush a toilet; flush a wound with iodine.
b. To remove or eliminate by or as if by flushing: "The weakness in demand and productivity will at least ... flush out some of the inflation premium that has been built into interest rates" (Fortune).
n.
1.
a. A flooding flow or rush, as of water.
b. The act of cleaning or rinsing by or as if by flushing.
2. A blush or glow: "here and there a flush of red on the lip of a little cloud" (Willa Cather).
3.
a. A reddening of the skin, as with fever, emotion, or exertion.
b. A brief sensation of heat over all or part of the body.
4. A rush of strong feeling: a flush of pride.
5. A state of freshness or vigor. See Synonyms at bloom1.

good one, googled myself ,but come up with som diff.

 

[vertigo0007]

im guessin flush refers to fresh h2o put thru ur medium (if any) and leaching is flushing w a flushing agent like clearex or the like,
i like drip clean, use it from start to finish

This is exactly my understanding.

 

[Avinash.miles]

ty.... i like the dictionary definitions as well, sad i didnt think of that... like whats the diff. dnno leme google that 4u.
ha
lookitup ina dictionary bro

 

[noyd666]

did not seem to be any diff at all, i goog leaching ,ithought fuk it im not typing all that out lol i'm smoking, worked in mines for over 20 years, you see leaching of iron through walls all time, go down bot of mine its flood time, pumps etc, one gigantic flood and drain water table lol. happy new year.

 

[SeaMaiden]

I don't quite see how bottom-watering & feeding equals the definition of leaching, but I get that context matters.

As for what I do, I simply stop feeding and give water only, usually with a very small amount of some sort of sugar, whether it be molasses or malted barley extract or date or palm sugar made into a solution. If the water is low enough EC, then it's a solute and it will pull unused nutrients out of the coir.

Why do I want the fade? Because of what I considered to be the best buds way back when I was a puplet, and that was when stuff like 'mersh' (short for 'commercial'), Panama Red, Panama Gold, Acapulcos, and Thai sticks were what was going around. Hash was BLACK, the blonde was only the stuff of legend. So I can't say that it's anything quantitative beyond appearance and personal taste, in other words, I think it's COMPLETELY subjective, at least for me, because I can't tell you that it smells that much better, etc, etc, etc.

Btw, I'm here to tell folks that bottom-feeding is absolutely possible. May not be recommended, but if you tailor your methods, it works. If you've got a bad back like I do, it can save a lot of wear & tear on your back.

 

[Green Supreme]

Yellow leaves have less food stored in them than green. I like less food in my stash. Means I can puff at 4 days from chop, with no green or nutie flaves. Most that don't yellow their plants, say they need to jar to cure before puffing. They miss those wicked terp buzzes I am getting at 4 days from chop. Peace GS

 

[PeopleWish]

Flushing frequency, amount and duration depends on the amount of residual no3 and nh4 left in the leaves.

Green, harsh, "hayie" and a general unbalanced flower is usually causes by residual N, early harvest or improper curing.

A way to prevent this unwanted N "taste" in herb grown in coco is to widen the ratio of nh4:no3 1/2-2/3rds of the way threw your flowering cycle.

A two week flush for a 2 day leech is shocking and grossly un-necessary. If you are watering your coco properly the entire cycle then salt content in the rhizosphere should be ~minimal, with that being said anything more than a few days of watering at a normal frequency and duration at a lower ec should be sufficient if your N content is in the ball park.

 

[noyd666]

a two week starved plant never made any sense to me ,not in coco and have never done so, 2to 3 days on a very light nute ec = normal watering is what i stick to. i'll leave all the floods to nature.