DWC flushing times

AthlonJedi

Member
@HSA ,

Im a DWC noob , but I decided to start with Techaflora Recipe for Success also, Was wandering, Do you get good results with it? I don't care about gigantic buds ( well maybe a little ) I am interested in Potency as This is all for my personal medical use ( Classic Migraine, severe joint problems due to military service, ) So I am looking to grow medicine that is potent enough I only need 2-3 tokes, ( although, I enjoy smoking as well so I will usually smoke a whole bowl at a time lol )something along the lines of Death Star, Blue Dream , or Sour Diesel.
 

RL420

Well-Known Member
@HSA ,

Im a DWC noob , but I decided to start with Techaflora Recipe for Success also, Was wandering, Do you get good results with it? I don't care about gigantic buds ( well maybe a little ) I am interested in Potency as This is all for my personal medical use ( Classic Migraine, severe joint problems due to military service, ) So I am looking to grow medicine that is potent enough I only need 2-3 tokes, ( although, I enjoy smoking as well so I will usually smoke a whole bowl at a time lol )something along the lines of Death Star, Blue Dream , or Sour Diesel.
imo nutes dont really effect potency as much as your choice of strain and your choice of harvesting time. Pick a high potency strain and harvest that bitch when shes ready.
 

AeroHydro

New Member
Here's a thought:

Now, I'm sure many people will disagree with me, even though I've smoked my own product WITHOUT FLUSH in DWC.
Flushing, is designed to remove EXCESS chemical nutrients from the medium and cause the plant to use up internal stores.

STOP. Let's think for a second. Coco/Soil(with Chem Nutes)/Rockwool are ACCUMULATING MEDIUMS. What does this mean?
It means, when you fertilize those mediums, NOT ALL NUTRIENTS ARE USED BEFORE THE NEXT FEEDING. This creates a
BUILD UP of nutrients that are NOT BEING USED. This is why when someone fucks up their feeding they FLUSH the medium
adjust the feed schedule. A plant that is being fed LESS THAN 1500PPM should not have excess nutrients/chemicals in the root
zone.

In DWC the medium (as in water, assuming no top drip) DOES NOT accumulate. The only nutes available are WHAT IS IN THE WATER.
If you do not OVERFEED (above 1500ppm - YES, you can go higher than 1500ppm *however* NO STRAIN NEEDS IT to thrive) there
is no need to flush. Why would starving your plant help it?? Starving an animal/person only opens it up to disease/pathogens.

-Base point: As long as you lower your ppm/do not overfeed - in *DWC* you should not NEED to flush!!! You can do it if you want,
but if will reduce yields. 3 days shouldn't hurt.

One other point - What pH does cannabis flush best with? If it is *WATER ONLY* you don't need to pH it!!!!!!!!!!! Why? Because we
adjust pH to increase NUTRIENT UPTAKE EFFICIENCY!!! NOT WATER!!! I have seen NOWHERE on ANY CHART, where a plant will drink
water only if it's at a specific pH -OR- that a plant can only take up water if it's pHed!!!

Let's stop pushing rumors, and people's opinions over SCIENCE.

P.S. Clearex and many/most other "flushing agents" are SUGAR WATER. Go read the label - glucose and sucrose. Aka. Sugar.

As far as greenfox is say, that all "professionals" flush... that doesn't make them correct or conscious of the actual molecular reasons. SALT aka CHEMICAL based nutrients are salts because of SOLUBILITY. Aka, it can dissolve in water. Once they are taken up by plants, they are CONVERTED, from salts, into different compound required for plant metabolism. The main thing with CHEMICAL NUTRIENTS, are that they are in plant usable form, and are *forced* into the plant through a difference in osmotic pressure.

I know a number of professionals, have discussed science with them, and a lot of people can't agree. This is mainly because they DON'T KNOW SCIENCE. I'm taking people who run 200,000 watt warehouse dispensary grows. The same people who ask me when they can use Eagle 20 for PM (remains in plant 50 days, is carcinogenic) and people who light off bombs in FLOWER. And these are professionals... as in they get PAID to grow weed. Granted, most of them got paid the same or less to grow weed, as I got paid to recommend the appropriate remedies and nutrients for clients.

I see A LOT of "professionals" who don't know very much, and a lot of professionals with big heads because they grow weed. Well... if you knew what you're doing, why grow weed for someone else? And why do they come to me, asking advise, when they're "professional/commercial" and I'm just some small timer who actually cares about learning, trying new methods, and studying rather than telling everyone who will listen about my "donkey dick colas..."
well stated
 

oldbudhigh

New Member
Here's a thought:

Now, I'm sure many people will disagree with me, even though I've smoked my own product WITHOUT FLUSH in DWC.
Flushing, is designed to remove EXCESS chemical nutrients from the medium and cause the plant to use up internal stores.

STOP. Let's think for a second. Coco/Soil(with Chem Nutes)/Rockwool are ACCUMULATING MEDIUMS. What does this mean?
It means, when you fertilize those mediums, NOT ALL NUTRIENTS ARE USED BEFORE THE NEXT FEEDING. This creates a
BUILD UP of nutrients that are NOT BEING USED. This is why when someone fucks up their feeding they FLUSH the medium
adjust the feed schedule. A plant that is being fed LESS THAN 1500PPM should not have excess nutrients/chemicals in the root
zone.

In DWC the medium (as in water, assuming no top drip) DOES NOT accumulate. The only nutes available are WHAT IS IN THE WATER.
If you do not OVERFEED (above 1500ppm - YES, you can go higher than 1500ppm *however* NO STRAIN NEEDS IT to thrive) there
is no need to flush. Why would starving your plant help it?? Starving an animal/person only opens it up to disease/pathogens.

-Base point: As long as you lower your ppm/do not overfeed - in *DWC* you should not NEED to flush!!! You can do it if you want,
but if will reduce yields. 3 days shouldn't hurt.

One other point - What pH does cannabis flush best with? If it is *WATER ONLY* you don't need to pH it!!!!!!!!!!! Why? Because we
adjust pH to increase NUTRIENT UPTAKE EFFICIENCY!!! NOT WATER!!! I have seen NOWHERE on ANY CHART, where a plant will drink
water only if it's at a specific pH -OR- that a plant can only take up water if it's pHed!!!

Let's stop pushing rumors, and people's opinions over SCIENCE.

P.S. Clearex and many/most other "flushing agents" are SUGAR WATER. Go read the label - glucose and sucrose. Aka. Sugar.

As far as greenfox is say, that all "professionals" flush... that doesn't make them correct or conscious of the actual molecular reasons. SALT aka CHEMICAL based nutrients are salts because of SOLUBILITY. Aka, it can dissolve in water. Once they are taken up by plants, they are CONVERTED, from salts, into different compound required for plant metabolism. The main thing with CHEMICAL NUTRIENTS, are that they are in plant usable form, and are *forced* into the plant through a difference in osmotic pressure.

I know a number of professionals, have discussed science with them, and a lot of people can't agree. This is mainly because they DON'T KNOW SCIENCE. I'm taking people who run 200,000 watt warehouse dispensary grows. The same people who ask me when they can use Eagle 20 for PM (remains in plant 50 days, is carcinogenic) and people who light off bombs in FLOWER. And these are professionals... as in they get PAID to grow weed. Granted, most of them got paid the same or less to grow weed, as I got paid to recommend the appropriate remedies and nutrients for clients.

I see A LOT of "professionals" who don't know very much, and a lot of professionals with big heads because they grow weed. Well... if you knew what you're doing, why grow weed for someone else? And why do they come to me, asking advise, when they're "professional/commercial" and I'm just some small timer who actually cares about learning, trying new methods, and studying rather than telling everyone who will listen about my "donkey dick colas..."
 

oldbudhigh

New Member
your advise makes sense to me totally and i thank you for making my decision an easy one, three days flushing will be just fine. my question is if its ok. to gradually lower the nutes the last 2 weeks before harvest, or should I continue feeding normaly up until the end when the buds tell you they are ready and then 3 days flushing w. just water will make any difference. thank you.
 

3squared

Well-Known Member
3 weeks is average for our's. First week is potash only, second week is clear, third and final week is straight water.
 

chopNcrop

Member
i had two grows going, one i didnt flush and the other i did.... the one i flushed was great, everything from top to bottom was on point, the taste, the smell, and the high. but the one i didnt flush had this almost hay taste and was painful to smoke. both plants were dried in the same room, under the same equipment, at the same time. idk if it was because i didnt flush or not but after that ive flushed every time. at least 2 weeks, but thats just me. i dont see any difference in the quality of the bud if i "starve" my plant for the last two weeks rather than just harvesting with no flush... just saying.
 

High_freq

New Member
BUMP! I really want to know what RO users say on flushing times, and if they use cal-mag or not to help with cell division.
I only use sensibloom nutes from veg all the way through to the end of flower. Always with RO water. I swear this combination completely eliminates ph as a factor altogether. I once checked the ph in a full res of nutes after 10 days in dwc and the ph had not budged. I flushed for ten days with regular RO water. But I feel like that was unnecessary. The smoke was reallllly smooth. And tasty. I say any flush lasting longer than a week is overdoing it.
 

hellmutt bones

Well-Known Member
If you ever cleaned out ur rez after ur harvest and seen salt build up at the bottom or on the sides or even on the top uf ur rez... then u dint flush properly.
This is what an experienced grower told me.
You must flush by diluting 3-2 weeks prior
Then if u want add some sort of flushing product for 5-7 days then flush again with just plain water the last 4-6 days and there u go!
 
Here's a thought:

Now, I'm sure many people will disagree with me, even though I've smoked my own product WITHOUT FLUSH in DWC.
Flushing, is designed to remove EXCESS chemical nutrients from the medium and cause the plant to use up internal stores.

STOP. Let's think for a second. Coco/Soil(with Chem Nutes)/Rockwool are ACCUMULATING MEDIUMS. What does this mean?
It means, when you fertilize those mediums, NOT ALL NUTRIENTS ARE USED BEFORE THE NEXT FEEDING. This creates a
BUILD UP of nutrients that are NOT BEING USED. This is why when someone fucks up their feeding they FLUSH the medium
adjust the feed schedule. A plant that is being fed LESS THAN 1500PPM should not have excess nutrients/chemicals in the root
zone.

In DWC the medium (as in water, assuming no top drip) DOES NOT accumulate. The only nutes available are WHAT IS IN THE WATER.
If you do not OVERFEED (above 1500ppm - YES, you can go higher than 1500ppm *however* NO STRAIN NEEDS IT to thrive) there
is no need to flush. Why would starving your plant help it?? Starving an animal/person only opens it up to disease/pathogens.

-Base point: As long as you lower your ppm/do not overfeed - in *DWC* you should not NEED to flush!!! You can do it if you want,
but if will reduce yields. 3 days shouldn't hurt.

One other point - What pH does cannabis flush best with? If it is *WATER ONLY* you don't need to pH it!!!!!!!!!!! Why? Because we
adjust pH to increase NUTRIENT UPTAKE EFFICIENCY!!! NOT WATER!!! I have seen NOWHERE on ANY CHART, where a plant will drink
water only if it's at a specific pH -OR- that a plant can only take up water if it's pHed!!!

Let's stop pushing rumors, and people's opinions over SCIENCE.

P.S. Clearex and many/most other "flushing agents" are SUGAR WATER. Go read the label - glucose and sucrose. Aka. Sugar.

As far as greenfox is say, that all "professionals" flush... that doesn't make them correct or conscious of the actual molecular reasons. SALT aka CHEMICAL based nutrients are salts because of SOLUBILITY. Aka, it can dissolve in water. Once they are taken up by plants, they are CONVERTED, from salts, into different compound required for plant metabolism. The main thing with CHEMICAL NUTRIENTS, are that they are in plant usable form, and are *forced* into the plant through a difference in osmotic pressure.

I know a number of professionals, have discussed science with them, and a lot of people can't agree. This is mainly because they DON'T KNOW SCIENCE. I'm taking people who run 200,000 watt warehouse dispensary grows. The same people who ask me when they can use Eagle 20 for PM (remains in plant 50 days, is carcinogenic) and people who light off bombs in FLOWER. And these are professionals... as in they get PAID to grow weed. Granted, most of them got paid the same or less to grow weed, as I got paid to recommend the appropriate remedies and nutrients for clients.

I see A LOT of "professionals" who don't know very much, and a lot of professionals with big heads because they grow weed. Well... if you knew what you're doing, why grow weed for someone else? And why do they come to me, asking advise, when they're "professional/commercial" and I'm just some small timer who actually cares about learning, trying new methods, and studying rather than telling everyone who will listen about my "donkey dick colas..."
I know im late by 2 years but YES YOU ARE ABSOLUTELY RIGHT.
 

Airwalker16

Well-Known Member
Here's a thought:

Now, I'm sure many people will disagree with me, even though I've smoked my own product WITHOUT FLUSH in DWC.
Flushing, is designed to remove EXCESS chemical nutrients from the medium and cause the plant to use up internal stores.

STOP. Let's think for a second. Coco/Soil(with Chem Nutes)/Rockwool are ACCUMULATING MEDIUMS. What does this mean?
It means, when you fertilize those mediums, NOT ALL NUTRIENTS ARE USED BEFORE THE NEXT FEEDING. This creates a
BUILD UP of nutrients that are NOT BEING USED. This is why when someone fucks up their feeding they FLUSH the medium
adjust the feed schedule. A plant that is being fed LESS THAN 1500PPM should not have excess nutrients/chemicals in the root
zone.

In DWC the medium (as in water, assuming no top drip) DOES NOT accumulate. The only nutes available are WHAT IS IN THE WATER.
If you do not OVERFEED (above 1500ppm - YES, you can go higher than 1500ppm *however* NO STRAIN NEEDS IT to thrive) there
is no need to flush. Why would starving your plant help it?? Starving an animal/person only opens it up to disease/pathogens.

-Base point: As long as you lower your ppm/do not overfeed - in *DWC* you should not NEED to flush!!! You can do it if you want,
but if will reduce yields. 3 days shouldn't hurt.

One other point - What pH does cannabis flush best with? If it is *WATER ONLY* you don't need to pH it!!!!!!!!!!! Why? Because we
adjust pH to increase NUTRIENT UPTAKE EFFICIENCY!!! NOT WATER!!! I have seen NOWHERE on ANY CHART, where a plant will drink
water only if it's at a specific pH -OR- that a plant can only take up water if it's pHed!!!

Let's stop pushing rumors, and people's opinions over SCIENCE.

P.S. Clearex and many/most other "flushing agents" are SUGAR WATER. Go read the label - glucose and sucrose. Aka. Sugar.

As far as greenfox is say, that all "professionals" flush... that doesn't make them correct or conscious of the actual molecular reasons. SALT aka CHEMICAL based nutrients are salts because of SOLUBILITY. Aka, it can dissolve in water. Once they are taken up by plants, they are CONVERTED, from salts, into different compound required for plant metabolism. The main thing with CHEMICAL NUTRIENTS, are that they are in plant usable form, and are *forced* into the plant through a difference in osmotic pressure.

I know a number of professionals, have discussed science with them, and a lot of people can't agree. This is mainly because they DON'T KNOW SCIENCE. I'm taking people who run 200,000 watt warehouse dispensary grows. The same people who ask me when they can use Eagle 20 for PM (remains in plant 50 days, is carcinogenic) and people who light off bombs in FLOWER. And these are professionals... as in they get PAID to grow weed. Granted, most of them got paid the same or less to grow weed, as I got paid to recommend the appropriate remedies and nutrients for clients.

I see A LOT of "professionals" who don't know very much, and a lot of professionals with big heads because they grow weed. Well... if you knew what you're doing, why grow weed for someone else? And why do they come to me, asking advise, when they're "professional/commercial" and I'm just some small timer who actually cares about learning, trying new methods, and studying rather than telling everyone who will listen about my "donkey dick colas..."
If I dont pH my water for cloning in the spray cloner, sometimes I don't even get roots. But when I do pH it, (5.5-6.5) I have roots in 4-7 days everytime.
 

Johnnygrows420

Well-Known Member
BUMP! I really want to know what RO users say on flushing times, and if they use cal-mag or not to help with cell division.
Bro i use RO from start to finish........i use ph adjusted RO to flush no calmag straight ph RO until i notice the plant is cannibalizing it self
 

Logan Burke

Well-Known Member
BUMP! I really want to know what RO users say on flushing times, and if they use cal-mag or not to help with cell division.
It's fine to use RO for flush, favorable even, if you decide you want to flush.
*EDIT* Shit, just read the post above lmao
 

Allenbud

Member
I change water every 2 weeks . When refilling res i let the hose wash over the root system when filling . Last 2 weeks im with SNOCAT Im letting the nutes lower them selves till last 4 days ish then strait phed water when tric's look right
 

neckpod

Well-Known Member
Flush is not needed.... IMO

All flushing with plain water will do is hurt yield and flavour.. all flushing does is starve the plant of the things it needs at a vital part of bud growth...

No other plant is grown in this way so why the hell do people think flushing your plant for the last week or 2 is a good thing? (poor info is the cause)

As the plant require less taper the nutes off but never to nothing..
I finish on about 200ppm and my tap water is 40ppm but a week before i finish my ppm is still well over 500.. without burning them.

Nutrients don't make buds harsh but rather the sugar content or just plane poor genetics.. Genetics cant be helped but a good cure will degrade the sugars and make the bud less harsh..

Green Harvest is the way forward not a yellow one...

Happy Growing

Boooom
 

Logan Burke

Well-Known Member
Flush is not needed.... IMO

All flushing with plain water will do is hurt yield and flavour.. all flushing does is starve the plant of the things it needs at a vital part of bud growth...

No other plant is grown in this way so why the hell do people think flushing your plant for the last week or 2 is a good thing? (poor info is the cause)

As the plant require less taper the nutes off but never to nothing..
I finish on about 200ppm and my tap water is 40ppm but a week before i finish my ppm is still well over 500.. without burning them.

Nutrients don't make buds harsh but rather the sugar content or just plane poor genetics.. Genetics cant be helped but a good cure will degrade the sugars and make the bud less harsh..

Green Harvest is the way forward not a yellow one...

Happy Growing

Boooom
While I'm still on the fence altogether, this is one of the best arguments I've seen against flushing. And it produces a very good point that, even in hydroponic farms of other crops, no one seems to be concerned with flushing.
 
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