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Benefit to res chiller besides root rot?

Discussion in 'Hydroponics / Aeroponics' started by nxsov180db, Sep 14, 2017.

  1.  
    nxsov180db

    nxsov180db Well-Known Member

    My reservoirs usually stay in the mid 70's although they can get up to 80. I can keep the rot away by keeping chlorine around 2ppm. I also grow aeroponically so I'm not concerned with the potential slight increase of DO either. My question I guess is will the cooler temperature in the root zone cause better growth and potentially larger yield?
     
  2.  
    ttystikk

    ttystikk Well-Known Member

    If you're keeping the root rot away with chlorine I'm not sure lower temps will accelerate your growth. Cooler water can hold more dissolved oxygen but again that's not an issue with aeroponic systems.

    I'm gonna go with no.
     
    nxsov180db likes this.
  3.  
    J Henry

    J Henry Active Member

    You bet increased res water temperature will increase rhizome metabolism and growth. That’s a no brainer, just common since.

    The colder the rhizome mass in colder res water, the slower the root metabolism, the slower the plant grows, the longer the growing season, the greater the opportunity for catastrophic events, power failures, life support equipment failures, crop diseases, crop failures and so on. Those dreaded, disappointing events resulting in dry spells and wasted money so to speak.

    Colder res water 64F – 68F res water temperatures, recommended by water chiller salesmen and many hobby growers, reduces and suppress root metabolism. When and if biological are used, aerobic metabolism is also suppressed.

    75F – 80F res water temperature insures an extra boost for rhizome metabolism compared to 64 F – 68 F res water temperature.

    Fact: The warmer the rhizome mass the greater the metabolism.

    If you do not have a problem with root rot, your res water quality is within the “safe” range, your roots masses are are healthy and fungi are neither attracted to nor impressed with healthy roots.

    Why change anything that is working well for you, roll up a fat-one and enjoy today because you are successful.

    Bravo!
     
  4.  
    Jypsy Dog

    Jypsy Dog Well-Known Member

  5.  
    StinkBud

    StinkBud Well-Known Member

    Chlorine will keep your root rot in check but it will also kill any bennies you have growing. The whole point of bennies is to help increase nutrient uptake. The thing is, nutes are a non-issue with hydro/aero because you can feed them as much as you want.

    Sounds to me like you have everything dialed already. If you wanted to run a live res then I'd recommend a chiller but if what you are doing works, then don't change a thing.
     
    nxsov180db likes this.
  6.  
    JSB99

    JSB99 Well-Known Member

    You might want to try evaporative cooling with a small 6" fan blowing across the surface of your reservoir water. Cooled mine down by 10 degrees!
     
    Ryry94, Frajola and nxsov180db like this.
  7.  
    nxsov180db

    nxsov180db Well-Known Member

    Yes, no bennies here.
     
  8.  
    Budley Doright

    Budley Doright Well-Known Member

    Are you actually true aero or low pressure sprayers. The issue I found was the root chamber was getting too warm with out chilling the water and I got rot with a vengeance. I actually increased spray times to keep things cool. The chilled water did seem to keep things more stable but it was due to better root health I believe. I keep res at 67 and things have been way easier to maintain.
     
  9.  
    nxsov180db

    nxsov180db Well-Known Member

    Just low pressure. What did you use for root chamber?
     
  10.  
    Budley Doright

    Budley Doright Well-Known Member

    An insulated tote 3x3.5x 8" deep. I have a thread here documenting the rot and cure somewhere here.
     
  11.  
    Budley Doright

    Budley Doright Well-Known Member

    I actually switched back to flood and drain due to too many issues with spray nozzles
     
  12.  
    nxsov180db

    nxsov180db Well-Known Member

    You used high pressure I gather?
     
  13.  
    Budley Doright

    Budley Doright Well-Known Member

    No low, bought all the stuff for high but never hooked it up
     
  14.  
    nxsov180db

    nxsov180db Well-Known Member

    I'm surprised you ran into problems with the sprayers. I've never had one clog, did you use a filter of some sort?
     
  15.  
    JSB99

    JSB99 Well-Known Member

    I ran into problems all the time. They get salt or slime build-up. I remember having to blow some of mine out every few days, when I was doing aero. Sometimes they'd get so clogged that I'd have to use pipe cleaners. My res wasn't the coolest running though, so some of that slime could have been from warm water. I would also imagine hard water causing mineral build-up on the sprayers.
     
  16.  
    nxsov180db

    nxsov180db Well-Known Member

    I even use high pressure for my cloner with no clogs. Are you guys using organic nutes?
     
  17.  
    JSB99

    JSB99 Well-Known Member

    From what I remember, I was using Soul Synthetics and GH Maxi. I ran them pretty hot, so maybe the extra nutes had something to do with it. I'm back to rdwc/uc, and I couldn't be happier! I always had the best success with dwc (the pics below, for example)!

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    [​IMG]
     
  18.  
    JSB99

    JSB99 Well-Known Member

    Back then, I really didn't bother with my water temps, and I know it had to have been pushing 80 and above at times. I probably got really lucky LOL!
     
  19.  
    nxsov180db

    nxsov180db Well-Known Member

    What was the dry weight under that 600? Yeah my temps can get pretty warm, I know I get as high as 80 but not more than that. I use between 2-5ppm of Chlorine. I use 2ppm of Chlorine from the first day clones get transplanted and if I am suspicious of rot then I'll up it to 5ppm.
     
  20.  
    JSB99

    JSB99 Well-Known Member

    It was a while ago, but I remember getting 6 to 7 gr/watt on a couple of grows. I'm thinking the two colas was around 6 or 8 oz each. The Super Silver Haze were a bitch to grow through. Flower took forever to finish (SSH = 16-weeks), and keeping their growth under control was a daily battle LOL. They were desperately trying to be trees!
     

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