@uzo420
This is a further development of a Dutch Bucket System.
I found the Dutch Bucket System about 25 years ago on https://forum.hanfburg.de/app.php/phoenix-aus-der-asche. It's like a DWC system.
This bucket has 20 L of water and 60 L/min of air.
I prefer the 4-piece RDWC system. There is the #Root_Block much nicer and more stable :).
This bucket has 5 L of water and 15 L/min of air. (60 L/min / 4 buckets)

https://mastodon.social/@SisterLover/116155065042511911