I did not took pictures with the pump running, but on the red 'drippers' (in fact those are old colored markers ) I have drilled 12 tiny holes (1~1.5 diameter) spaced 5~7 mm apart and drilled in different angles (in fact it was not drilled, but pierced with 1.5mm iron wire wrapped over a soldering iron tip).
The clay plebs are always wet because the water came out with high speed (this is why one of the tap is half closed ) splashing all the surface .The pumps run for 15 minutes each hour (this is the minimal time my mechanical timer allows me to set). I also have a DIY timer that run for about 60 seconds every 4~5 minutes, so I could use that one.
This drippers will be used only a week or two and I intend to remove them right after the roots will grow into the reservoir).
