Grow Bed trial run

Half a day to fix the grow media and the siphon bell synchronized. Newbie trial and error the hard way. Notice the netting? The LECA Hydroton were naughty enough to wreck havoc on the intake.
Lesson # 52 - Intake Screen to be of slit type instead of drill holes.

Still finding the right cycle balance, with my siphon bell not flushing as it should be. 

  Growbed (empty) volume : 15cmX12cmX2m (gutter size) = 0.036m3=36liter

  Effective Volume (+growmedia) :36x60%=21liter

  1200liter/hour = 20liter/minute

  1 minute ebb & dry cycle is not that ideal