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Med-Man Tables By Krunchbubble...

TheCleanGame

Active member
Veteran
There is no reason to use a dead res technique with dwc. EVER.

If Dead-Res is your solution, your methods are messed up. Simple fact of hydro. Worst hydro herpes locations in the world do not require dead res, just cleaned water and properly set up routines.

Been there
 

growteam

Member
There is no reason to use a dead res technique with dwc. EVER.

If Dead-Res is your solution, your methods are messed up. Simple fact of hydro. Worst hydro herpes locations in the world do not require dead res, just cleaned water and properly set up routines.

Been there

Since I started using chlorine in the res I never had any plant problems. As a preventative I would recommend it to anyone. Once a disease starts its a bigger problem to try and fix it. I know greenhouse vegetable operators that run hydroponics and thats where I originally learned about using chlorine as a preventative. I dont think its messed up at all. I think its a fantastic preventative.
 

Mikell

Dipshit Know-Nothing
ICMag Donor
Veteran
I vote krunch finds a mod to clean up the blabbering in his thread. What a load of crap-o-la
 

GreenhouseGrown

New member
There is no reason to use a dead res technique with dwc. EVER.

If Dead-Res is your solution, your methods are messed up. Simple fact of hydro. Worst hydro herpes locations in the world do not require dead res, just cleaned water and properly set up routines.

Been there

You could run the water through an RO unit to clean it but the expense is in the filter and the waste water generated from the process. Around here wasting water is a big problem.

Been there

[this thread went downhill why in the world are you guys even keeping the thread alive lol]


We are discussing why the plants have died and ways to prevent the same thing from happening to the rest of the show.
 

growteam

Member
You could run the water through an RO unit to clean it but the expense is in the filter and the waste water generated from the process. Around here wasting water is a big problem.

Been there

[this thread went downhill why in the world are you guys even keeping the thread alive lol]


We are discussing why the plants have died and ways to prevent the same thing from happening to the rest of the show.

Even cleaned RO water and healthy plants wont guarantee no root disease. Just reduces the risk. I RO and UV my water. And use chlorine. I do it because of experience and disasters in the past.

Regarding the thread.

My opinion to the op:

1) Like others have stated. The 72 hour darkness is excessive.
2) Like others have also stated. The constant water flow on the root crown isn't good. A on and off cycle would be smarter.
3) The roots are tiny. This system can't make big strong roots.
4) This system puts you at higher risk of bacterial disease. Especially without chlorine in the solution.

Like everyone has stated already, its a perfect storm. OP has balls for attempting it and taking the time to share. Good on you brother.
 

krunchbubble

Dear Haters, I Have So Much More For You To Be Mad
Veteran
Even cleaned RO water and healthy plants wont guarantee no root disease. Just reduces the risk. I RO and UV my water. And use chlorine. I do it because of experience and disasters in the past.

Regarding the thread.

My opinion to the op:

1) Like others have stated. The 72 hour darkness is excessive.
2) Like others have also stated. The constant water flow on the root crown isn't good. A on and off cycle would be smarter.
3) The roots are tiny. This system can't make big strong roots.
4) This system puts you at higher risk of bacterial disease. Especially without chlorine in the solution.

Like everyone has stated already, its a perfect storm. OP has balls for attempting it and taking the time to share. Good on you brother.


1 - As I said before, been doing 72 hours dark for many years, 100's of harvests without a hiccup...
2 - I dont agree...
3 - You have NOT A CLUE what your talking about...
4 - No I dont use chlorine in my system, I use chloramine which is a much better solution...


Cant stand people who come in late to the discussion without reading the whole thread and give their worthless 2 cents thinking they have THE solution...
 

growteam

Member
1 - As I said before, been doing 72 hours dark for many years, 100's of harvests without a hiccup...
2 - I dont agree...
3 - You have NOT A CLUE what your talking about...
4 - No I dont use chlorine in my system, I use chloramine which is a much better solution...


Cant stand people who come in late to the discussion without reading the whole thread and give their worthless 2 cents thinking they have THE solution...

Alright well you sound like your getting defensive. I read all the pages to your experiment. I was stating my agreement with some of the stated opinions during those pages. I respect that you have used 72 hours of darkness in the past but since your crop failed I wouldnt be so quick to rule it out as a possible contributor to your current problems. Sometimes a combination of things lead to overall failure. In the past your 72 hours of darkness may not have been enough to lead to problems. I dont know. Im just giving you much needed input in to the areas I would personally explore. Its hard to give anyone a solution by reading a grow journal. Everyone's just sharing their experience with you. Including me.

Now for my two cents:

If I had a root mass that underdeveloped in relation to the vegatative matter I would be concerned. C'mon you know that. Ive seen pics from your older grows. You had a much better root system on previous grows. Also, all those branded juices your giving your plants is bad news. Learn a little about NPK and ditch the crazy marketed products. JR Peters offers some really great 2 part mixes that are complete. Keep it simple. A dozen bottles and no discussion about elemental ppm's is a recipe for disaster. How could you possibly know whats wrong when you dont even know what your feeding your plants.

Why do you like chloramine over chlorine? Is it because it stays in the res longer? Whats your dosing schedule and source?

Why do you think your crop failed?
 

gmanwho

Well-known member
Veteran
few posts ago there was mention of the stems staying to wet. I can vouch that this is a very possible culprit of the the stem rot.

Also, with owning the black holes drippers myself, they dont have really a big ring opening that goes around the plant. the hydro halo maybe a better option, which is much wider. the water drips further away from the stem.

This is something KB changed from the original design. And i do not like the BLACK hose being exposed to direct light unitll a canopy is formed. the black holes dripper may have been to close to the stem.

best of luck krunch..
 

gmanwho

Well-known member
Veteran
i've always had trouble with moist stems on any top drip system i've run.


definitely mg. or is the original rooting medium staying to wet too. Like rockwool or rooter plugs. even if there is not any rooting medium the main stem likes to be dryier.

This can happen in a flood & drain setup too. I've lost some over time for sure, when the rooting plug was set to close to the flood height.

but top drip can be nice as you dont have to worry about the first onset of root development. u know the roots are getting wet w/top drip. where as if u have a flood system u gotta make sure to hand water for the first 5 days or so because you had to set the plug higher. There is some wicking action past the top flood height, but are the roots getting the water you wonder? Slippery slope.

Still going ahead with similar tables.

bsafe
 

catman

half cat half man half baked
Veteran
Is the GDP table still running? If so, try the 72 hours again with a few selected plants to experiment.

I'm going to repeat myself here because I think it's worth it...

When roots have direct access to water the plant will not produce extra roots (adventurous roots is the botanical term) to search for more water. It doesn't do this because it doesn't need any more water. If the light intensity and other environmental factors are consistent then the roots will remain well adapted. Now after the 72 hours of darkness the plant needs to work extra hard to restore balance and without the extra roots it doesn't have what it needs to bounce back. In soil or in other hydroponic systems the plants typically produce some extra roots. (this doesn't mean the plant grows any better; extra doesn't mean better!) I know this system can produce, but it is more sensitive to changes.

Have any of you experienced hydroponic growers ever played with the flood height in a Flood and Drain table? If the flood height is higher the plant will grow just fine, but like with the med-man table.. it will produce less visible roots and the ones it does produce will not look the most healthy overtime... Regardless... the plants will thrive! We are growing foliage and fruits after-all! NOT ROOTS!

One can grow plants for months or years in a Flood and Drain system with a higher flood height and once that flood height is lowered.. the plant will produce new white roots. This not only looks good, but it makes the plants more tolerable to change! BUT!! The plant spends energy producing these roots (energy that could otherwise produce plant growth above ground) when it doesn't need them if the flood level is higher or if the plant has direct access to solution like with the med-man table design.

Hope that helps :ying:
 

DrFever

Active member
Veteran
Thats what i am readin as of late as i am currently getting ready for my under current set up i think its probably a good idea to have a high water table at first then lower it in veg state to allow for little more root system to develop which i think in turn will allow for overall better growth rates as for more nutrient up take IMO from being a soil grower root mass also dictates yield ,
So going DWC i have lots to learn lol
 

Ichabod Crane

Well-known member
Veteran
What is does 72 hours of dark do?

During the light cycle your plant produces a hormone that suppresses flowering. This hormone is slowly depleted during the night cycle. When it reaches a low enough level your plant starts to flower. By having a long dark cycle you remove the hormone faster and reduce the flowing time period needed for a finish product.
 

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