help with dwc/drip hybrid watering times

Discussion in 'Hydroponic Growing' started by kevin8017, Oct 2, 2011.

  1. I currently have a dec/drip hydro setup which is a 30 gal res and have netted pots with hydroton (the plants are started in rockwool and when rooted the rockwool is placed in the hydroton) suspended from the lid. I have two powerful air pumps with 8" disk airstones in the water running 24/7. I also have a submerged pump that currently waters top down and drips back into the res for 30 minutes every 3 Hrs.the temps run around 74-85 depending on the season. I have successfully harvested two crops doing the scog method twice before with this method, but when I look up watering times for hydroton it varies greatly. Some say to water continuously, some say every 2-33water hours. While I believe continuously would be too much as I understand plants love to detour somewhat inbetween watering and we'll im at every 3 hours and the plants seem quite healthy (leaves raised and growing rapidly) although when I look at my roots (I have a small door opening for access) the ones protruding from the bottom of the netted pot look pretty dry, but the rockwool on top still has moisture, two of the plants have shot their roots down and already in the water( which is my intention). these two are growing the fastest of course. Also my roots gave a tan hinge to them and all my crops have been with no negative effects. My question is ; does my setup sound adequate? Am I watering enough? Because the small roots poking out if the hydroton seems pretty dry near the 3 hr mark and maybe just getting air pruned? but plants seem healthy but im always too weary of over watering and killing them all. I just want the get possible growth as we all do. Maybe I should time the watering and as soon as it gets watered turn it completely off and see how long it takes the plants to show signs of needing water??? Or since the plants seem healthy should i just let them be?Im just mind ****** lol. I would greatly appreciate any comments or help out there.

    Asked by Kevin - 43 minutes ago - 4 days left
     
  2. Yea timing it to see when your plants need watering again would be a good start. Could always try 45 mins on every 2:30 hrs off and tweek the timing a bit and adjust as needed like 1 on 3 off or so.
     
  3. Hi..

    I have a drip system that also has air stones in the bottom. Kind of a hybrid system like yours. I run the drip system for 15 minutes every hour during the daylight and 15 minutes every two hours during night. According to the system manufactor, you can run the system 24/7. But like you have said, you have two successful crops doing it your current way! Everything else sounds like you have it under control.

    Good Luck!
     
  4. Ok thanks for the advise guys but all I have atthe the moment it a timer that's in 30 min increments, so what plan would suffice for that?
     
  5. In the case of a 30 minute timer, I would do 30 on and 90 off.

    Good Luck!
     
  6. I started with 30/1.5 Hrs off then 30/2, 30/2.5 and currently at 30/3 and plants are still healthy but the two that are in the water already look a bit better imo. They have one root that goes straight down to the water then fills out more from there. But the little ones are just dangling out of the pot a little
     
  7. So u think 30 on 3 Hrs off is too long?
     
  8. By little ones I mean little roots
     
  9. @ andy3191 pm me about them Orange Kush seeds...
     
  10. [quote name='"WhobeBoo"']In the case of a 30 minute timer, I would do 30 on and 90 off.

    Good Luck![/quote]

    Ok so I changed it back to 30 on 2 Hrs off so its between what I had and what you recommended just hope no root rot. But o do think I needed more water, the small roots protruding from the pots felt extremely dry, while the ones the water ran down the most are the longest. Sound right to conclude that more frequent water was needed?
     
  11. Just checkin in. 30 on 2hr off is working perfect with 1/2 gph drip. Thanks for all help
     
  12. [quote name='"kevin8017"']I currently have a dec/drip hydro setup which is a 30 gal res and have netted pots with hydroton (the plants are started in rockwool and when rooted the rockwool is placed in the hydroton) suspended from the lid. I have two powerful air pumps with 8" disk airstones in the water running 24/7. I also have a submerged pump that currently waters top down and drips back into the res for 30 minutes every 3 Hrs.the temps run around 74-85 depending on the season. I have successfully harvested two crops doing the scog method twice before with this method, but when I look up watering times for hydroton it varies greatly. Some say to water continuously, some say every 2-33water hours. While I believe continuously would be too much as I understand plants love to detour somewhat inbetween watering and we'll im at every 3 hours and the plants seem quite healthy (leaves raised and growing rapidly) although when I look at my roots (I have a small door opening for access) the ones protruding from the bottom of the netted pot look pretty dry, but the rockwool on top still has moisture, two of the plants have shot their roots down and already in the water( which is my intention). these two are growing the fastest of course. Also my roots gave a tan hinge to them and all my crops have been with no negative effects. My question is ; does my setup sound adequate? Am I watering enough? Because the small roots poking out if the hydroton seems pretty dry near the 3 hr mark and maybe just getting air pruned? but plants seem healthy but im always too weary of over watering and killing them all. I just want the get possible growth as we all do. Maybe I should time the watering and as soon as it gets watered turn it completely off and see how long it takes the plants to show signs of needing water??? Or since the plants seem healthy should i just let them be?Im just mind ****** lol. I would greatly appreciate any comments or help out there.

    Asked by Kevin - 43 minutes ago - 4 days left[/quote]

    3 hours without water on the roots is waaaay too long!! Just changing out the water on my DWC pots causes the roots to dry out too much and that's only bout 20 min!!! If I were u, I wouldn't starve them of water for that long!! U might throw them into shock and possibly turn them into hermies!!! I'm not quite sure I understand the entire setup u have going on! Sounds like it's a type of flood and drain!! If it is a flood and drain, don't wait longer than 10 or 15 min without water! Do some trial and error and after u drain it keep an eye on the roots and feel them ( with clean hands) to c if they dry out then u will know what to set ur timer at!!! Good luck
     
  13. Dry in 20 minutes? Wow! How hot is it in there? Lol. Its a drip /dwc and yeah I do think 3 Hrs is too long but I cut it back to every 2 and they loving it. But see im only running around 74 degrees on average with my t5. I could attempt to water more but I fear for root rot. What u think?
     
  14. But also. The roots are in water just like dwc. But they get additional water from top that way I dnt have to have the water level that high, saving money and nutes. Then as the roots fill the water I increase the amount of water needed in the res.
     
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