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Active hydroponic disaster prevention

Discussion in 'Hydroponics / Aeroponics' started by HydroLynx, Sep 6, 2017.

  1.  
    rkymtnman

    rkymtnman Well-Known Member

    I bet this J Henry guy has never grown in hydroponics. Lots of useless information coming from this pseudo scientist. Seems like more likely a salesman with no real world experience. Maybe he should put up some pics of his grow showing DO saturation at 80F? I would love to see how his plants look with 80F water temps.
     
  2.  
    ttystikk

    ttystikk Well-Known Member

    Coco is a solid substrate and doesn't need cold water to avoid root rot, it just needs to be allowed to dry. Therefore it's not a good analogy for deep water hydroponics.

    Also, from personal experience I've found that most DWC and RDWC systems do have daily temperature fluctuations, and these are actually beneficial as long as the water temperature drops to 65 or close at least once every 24 hours. Even large systems can vary by 5 degrees or more between the end of the night cycle and the end of the day cycle.

    This is how one can get warm daytime water temperatures to accelerate plant growth without running the risk of root zone problems. It even saves energy by allowing the designer to use a smaller amount of chilling capacity than might otherwise be called for.

    Long ago I threw out my air pumps and stones in favor of waterfalls, which elevate the circulated water return above the surface of the water in the container. Just like the fish keepers I was emulating, I found that I had better aeration. Additional benefits included less noise, less power consumption and less heat.

    This approach worked so well that once when I deliberately added putrid water to see how it would affect things, the system's response was a complete non-event.

    I'm not trying to say you're wrong, just that the situation is more complicated than the single variable. Hope this helps!
     
    Last edited: Sep 12, 2017
    SwitchHitter likes this.
  3.  
    ttystikk

    ttystikk Well-Known Member

    As long as dissolved oxygen levels are constantly replenished then all these questions are irrelevant to anyone but a water quality engineer; the saturation level will be plenty to keep the plants in good health.

    Again, it's just not hard to fully oxygenate water for growing plants or keeping fish in, and does not require much if any special equipment. I've run systems with hundreds of gallons of water and never had a problem unless the pump quit.

    The point we're making is to save yourself the trouble of solving problems you don't have so you can instead use the time to solve the problems you DO have.
     
    Last edited: Sep 12, 2017
  4.  
    SwitchHitter

    SwitchHitter Active Member

    Dude, you're a little cunt. Shut your fingers mouths. We trying to leasrn here. Not have a dick shoved in our face
     
  5.  
    SwitchHitter

    SwitchHitter Active Member

    I'm sure the ground changes temperature at night....you know, deep down where roots go... All I do in the garden is try my damn hardest to replicate nature. Root temp swings should be used in late bloom. I really enjoy reading your responses ttystikk. Makes me think about things I've already thought of.
    Also a large fan of no air stones. Water cascading is great
     
    ttystikk likes this.
  6.  
    ttystikk

    ttystikk Well-Known Member

    IME, root temp swings work throughout the whole cycle from start to finish. I love them!

    I think the temperature swing outside in soil is closely related to the depth the measurement is taken, after allowing for climate. Just like pH swing, I think that unless it's taken to an extreme that it's beneficial. In fact, the very fact that it swings might be a key to keeping it within such bounds.

    Definitely good stuff!
     
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  7.  
    J Henry

    J Henry Active Member

    So you telling me (like this is a fact) that you think that you get more oxygen with air and a water fall and less oxygen with air blowing through an air pump and bubblers so you threw away you air pump and bubblers because the water fall gave out more O2 than the air pump. Well that a crock and a half or more like 2 crocks dude! Who in the world do you think would believe that?

    Although you have never actually tested the DO difference between using air pumps/bubblers and using water falls, you really do think/believe/guess/hope and tell others as fact, that you get more oxygen with air and a water fall because the fish pond salesman told you that?

    Seriously, I got to laugh out loud at this non-since your peddling. Your shuck’in and jiv’in like your mentor, the rocketman and peanuts, his simple minded little buddy.

    Now that makes no since at all dude because air contains a little less than 21% O2 at sea level or the top of Mt. Everest so how do world you get more O2 with a water fall than an air pump anywhere on earth?

    You are also one of those dudes that never test DO’s in res water too, because you have a DO Chart and thermometer that confirms DO, right. Actually you don’t have a clue because you have never tested any DO using an air pump/air bubblers or water walls either have you.

    You and the rocketman along with his followers are as dim as a small birthday candle in the darkness, a less fortunate gravitator group.

    Is there anyone here that took 6th grade chemistry or is a Jr. High School Graduate?
     
  8.  
    OldMedUser

    OldMedUser Well-Known Member

    Yeah. I'm a chemist with a diploma in Environmental Chemistry worth 2 years uni credit.

    Never tested DO in my DWC tubs. Run 2 - 12" stones in each Rubbermaid tub off of dual outlet air pumps. If two tubs are going with two pumps them each pump is running one stone in each tub and the pumps are plugged into different circuits in case one breaker flips tho that hasn't happened in the last 14 years in this house.

    I've only done about 50 tubs worth in the last 16 years so don't know everything but what I do know I share without coming off like a jerk.

    Never did get my High School diploma so I guess I'm as ignorant as you make everyone else out to be.

    Social skills trump education any day.
     
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  9.  
    OldMedUser

    OldMedUser Well-Known Member

    Temp swings in the root zone with potted plants happen fast but plant's roots in the ground won't even notice a frost deeper than an inch or two. If growing in pots outside insulate the pots with anything. Pile straw around them or wrap with wall insulation. They make white stuff that don't itch you and will hide the black pots in the snow. ;)
     
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  10.  
    ttystikk

    ttystikk Well-Known Member

    I've tried to be nice to you. Last warning.

    I got the waterfall technique straight from reefers, people who run big fish tanks. Salt water and primitive fish (think trout) tanks both need lots of oxygen and lots of circulation and they were very clear about the fact that waterfalls both aerate and circulate better than air stones. That's called consulting with knowledgeable experts in the relevant field and it's something I do regularly, across as many disciplines as possible.

    Now let's see some of your amazing plants, ace- or pipe the fuck down already.
     
  11.  
    BabyLobsterito

    BabyLobsterito Member

    Seriously though. Enough half-assed attempts at directing personal jabs at people and repeating yourself, this isn't IG.

    If you're sure you have the right method, as you keep arguing, how about proving everyone else wrong by providing some actual credible proof?
     
  12.  
    ttystikk

    ttystikk Well-Known Member

    20160816_111719.jpg 20160812_021023.jpg 20160803_133003.jpg 20160727_124001.jpg
    Enough?

    You're new here, so I get that you don't know who's known for what.
     
    Magic M, neckpod and BabyLobsterito like this.
  13.  
    ttystikk

    ttystikk Well-Known Member

    Now it's know it all's turn.
     
  14.  
    BabyLobsterito

    BabyLobsterito Member

    Wasn't directing that at you, hope it didn't come across that way. I've been here less than a week and know you back up what you say, and that you're knowledgeable. Was directed at Mr. Henry, as he makes these claims but hasn't provided the thread with any proof. I'm curious to see what backs the statements made.
     
    ttystikk likes this.
  15.  
    BabyLobsterito

    BabyLobsterito Member

    And I'm not saying this to get a rise out of everyone. Genuinely curious.
     
  16.  
    ttystikk

    ttystikk Well-Known Member

    Well, now punk ass @J Henry gets to put his pics up next to mine and put his nuggets where his nose is.

    I'm not expecting him to have the balls.

    BTW, for scale the trellis the plants are growing on has 4" squares. Three to a foot.
     
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  17.  
    BabyLobsterito

    BabyLobsterito Member

    Hard to count the squares with all the colas in the way...:mrgreen:
    6' or so?
    You've got me seriously considering a vertical grow... about ready to sleep in my closet so I can use my whole room lol.
     
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  18.  
    ttystikk

    ttystikk Well-Known Member

    Yep. 6' tall x 4' across. Up to two pounds each. You can sleep in the middle of the room, these girls just climb the walls, lol
     
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  19.  
    BabyLobsterito

    BabyLobsterito Member

    You mean the space for other plants lol. I could probably benefit from the vertical growth more with my T5 fixture anyways.
     
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  20.  
    HydroLynx

    HydroLynx Member

    I am so over DWC--10 years of changing 30kg + reservoirs is a pain, and those systems have less-than-optimal O2 levels. SO I have whipped up a "media-less flood and drain system". Now the pump wasn't turned back on that's why my crop half died. So HERE hydration is more important than oxygenation, as my roots theoretically self-oxygenate in-between flood cycles. I am using airpump + stones, but I'm experimenting on extra rootzone oxygenation. Although I must still lick those "gas-transfer equations" so I can model exactly how much O2 will passively dissolve into a thin film of water on the root. App with NFT it has high transfer rate, but apparent isn't fact. Any figures? My hypothesis is: how worth while is it to temporary drain the root mass in the name of extra O2 in a media-free flood n drain type system...

    PS: FORUM DECORUM FFS.
     
    Last edited: Sep 13, 2017 at 2:34 AM

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