lovebubblehash
Member
wats the best procedure to flush an hydro and how any days . i want it nutrient free?
dwc for flushing?
- Thread starter lovebubblehash
- Start date
i flush from 1 week to 2 weeks dependind on the trichs. what i found works best is 3days using finalphase keeping ph at 5.8-6.2 range then pure ro till harvest. i noticed with final phase the ppms rise rapidly from 0 to 400 in 3 days then stable out. then i use the pure ro i know the plant is supposed to use up its stored nutes not flushem out through the roots but i cant explain it . my weed is topnotch pure white ash and tastes fantastic. i wonder if it would be good with a 3 day flush with final phase but 3 days just isnt my style.
peace stone
peace stone
rastakolnikov
Well-Known Member
no more than a week is needed in dwc imo, unless you really overfed
tip top toker
Well-Known Member
dense medium with poor drainage? it's a bucket of water with no drainage...
i've flushed and i havn't flushed and to be honest i can't tell the difference
Gixxerboy
Well-Known Member
The medium i mean is on top of your reservoir,like peat pellets,grow rocks,rock wool.If you are using rock wool for example(witch is a dense medium that stays wet,soggy for a long period of time and has poor drainage) and you are constantly flooding it with high EC nutes,then yes you need to flush.But why would you want to take food away from your girls right at the height of production and anger them with no nutrition?You have seen yourself that flushing makes no difference.Dense mediums retain the salts after it has dried,soil needs to be flushed not DWC.Besides nitrogen plays the most in bad taste of your bud,witch is taken up very quickly by the plant and doesn't hang around in the solution at high levels very long,also cant be measured by ec,ppm meters.I believe K also plays a role in bad taste.Check your ashes are they white?Salts need to accumulate in order to need to be flushed,this may be the case for soil but not DWC.
tip top toker
Well-Known Member
ah, i get you. however once my roots are grown, my rockwool doesn't get any nutrient and water, pretty much dries up and that's that. most likely i'm doing it wrong.
Gixxerboy
Well-Known Member
Im the same after my roots hit the water,I only wet the my medium(peat pellets in grow rocks)with pH balanced water,I feed the pellets only once a week full strength nutes.Sounds like your good I would just keep your wool damp.
angelsbandit
Well-Known Member
After rooting water/nutes never touch the rockwool again in my set-up.
I keep the water/nutes just below the bottom of the rockwool - works great for me.
I keep the water/nutes just below the bottom of the rockwool - works great for me.
tip top toker
Well-Known Member
likewise. i sometimes here and there throw a drop of water onto the rockwool (just a silly paranoia thing about the bad weegie that goes on when rockwool is dry, other than that though, it has no real benefiot as far as i can logically work out. my water normally stays around 3 inches from the bottom of the tub, lazy like
Power Towel
Member
Never-ending debate fo sho. I've heard from 2 days to 2 weeks. Some say they can tell the diff, some say they can't. Without a "real" scientific experiement, including assaying harvested cloned plants in identical conditions with only the flush time as a variable, we will never know for sure. Some people also "middle of the road" it by just dropping the PPMs for the last week or two. I did that - between 100 and 200 ppm for the last 2 weeks - on my first and most recent grow. This time I am going to keep full strength until the thing looks "ready", then do a Clearex flush and water only for a few days at most. Just another stoner's opinion for ya!
stillcantroll
Active Member
I was about to say about the same thing. Honestly, it really is one of those things you simply need to experiment. I, personally, think flushing DWC is an absolute must, but that's only because I like most other people experimented without flushing, and I had a really disgusting product as a result... black ash, tasted like crap, etc.
What I will say, and this is pretty hard to disagree with: It's better to edge on the side of flushing over not flushing, when deciding if / how much to do it for. The reasoning for this is as follows: If you decide to flush for all of weeks 7 and 8, you really don't lose much, if anything, at all. Most fattening in DWC is done by the end of the 6th week anyways, and the last 2 weeks are for trichome development... and sometimes a bit of swelling. Here comes the important bit: If you choose not to flush, and you're wrong, you're left with a whole lot of buds that aren't smoke worthy, and are ready to be made into hash. If you choose to flush and are wrong, you're left with tasty buds that *might* have been just as tasty and *possibly* a little bigger due to the foregone nutes. Judge your actions accordingly, but you know whrere I stand
