The trays always have at least 1-2 inch of watter, except when the temperatures are lower and I let the watter levels drop on purpose. So the trays are a big reservoir. The boxes on the wall have even more higher levels of watter since it is warmer up there and I don't like climbing the letter for them every 2 weeks.
To make the pictures with the holes I lifted the plastic container out of the trays so yes the watter did flow out of them temporarily. The keiki trail where the photos of the containers are taken has lower levels of watter since keikis are small and put in smaller plastic containers. The LECA bebbles are not dried out except maybe the top 1,5 inch or so.
So maybe it is not normal S/H but I am sure is not traditional culture in LECA medium
---------- Post Merged at 06:59 PM ----------
As for flushing the watter out of the trays I do it every month or so using a rubber hose, and the principle of communicating vessels, and every forth week I watter with no nutrients. I am aware of the risk of spreading disease from one plant to the other this way, but this is the only way I could think to fit in the space I have all the orchids I got.
---------- Post Merged at 07:01 PM ----------
At my cottage I do have more plants in individual small saucers to fit on the windowsill.