Latest / Hydroponics Daily / Ebb and Flow/Flood Hydroponics

Transcript

Ebb and Flow/Flood Hydroponics · Hydroponics Daily

• 0:00
  Hi, welcome back to Hydroponics Daily. Today we're talking about ebb and flood,
• 0:04
  or flood and drain, or ebb and flow.
• 0:07
  It's a technique, it's a system that is popular, fairly popular,
• 0:13
  it's not as popular as it used to be.
• 0:14
  And it involves the roots being submerged in water, like in DWC,
• 0:20
  but for only a short period of time.
• 0:23
  And so there's a pump that draws the
• 0:26
  water into the tank and submerges the
• 0:29
  roots now that that pump or another pump removes the
• 0:32
  water and so that for most of the time
• 0:35
  the roots are just sat there in a very very wet moist environment
• 0:38
  a bit like um in aeroponics and
• 0:42
  so that drains away back into the holding
• 0:45
  tank where it can be adjusted for ph and nutrients added and things like that
• 0:49
  it's it's and then the plant just sits as it would in another system on the
• 0:54
  surface and the foliage is there it's it's it's a simple system it's it's reliable
• 1:01
  as long as the pump's reliable.
• 1:03
  It's it's used a lot in what is
• 1:06
  it used like ornamental i think it's used a lot so if we're growing lots of
• 1:11
  potted plants can be the whole area can be flooded at once and then that makes
• 1:15
  an efficient way of growing plants in like cocoa in pots the whole sort of polytunnel
• 1:21
  or greenhouse can be flooded and then the plants can be moved around whereas
• 1:24
  they can't in other systems
• 1:25
  it doesn't need hand watering or anything like that the major
• 1:28
  disadvantage of that sort of system is that diseases can
• 1:31
  spread quickly as as the whole system
• 1:34
  floods so rather than say hand watering where you can
• 1:38
  isolate the plants so flood and drain
• 1:40
  it's not as proper as it used to be it's quite it's quite
• 1:43
  a good system and ebb meaning it's
• 1:46
  ebb away and obviously flood it's important that
• 1:49
  it fills to the exact same point
• 1:52
  every time because if it doesn't then roots
• 1:55
  will start to suffer from severe drought if they are only
• 1:58
  getting water every so often you want
• 2:01
  a consistent height and that can be an issue if there's not enough water in
• 2:04
  the tank or the pump isn't very accurate and obviously you you've got to make
• 2:09
  sure as as that plan develops that those roots don't stay in stagnant water
• 2:13
  because they're going to rot so but apart from that it's a fairly good system
• 2:17
  that's been hydroponic dailies for today flood and drain systems.