I agree. Don't you think power outages would still affect ebb and flow tables? I mean if there's no power the pump won't cycle leading to roots drying out quicker. At least in dwc with a power failure the roots are still submerged in water.
an ebb & flow, per my design of course
can sit with no power for a day if really necessary with no harmfull effects except reduce growth because of the lack of flow.An ebb&flow is as simple as a cheap water pump (instead of an air pump) and a tray (instead of one bucket) plus a reservoir (so two buckets) and a couple of fittings. When the power goes off in DWC the roots become oxygen derpived and hence the constant ROOT ROT problems that people have. Ebb & Flow uses gravity to its advantage. DWC relies on constant aeration\flow.
Well I can go a couple of days without power in ebb&flow since the roots NEVER sit in standing water
