Olomana Gardens Barrel Siphon

Glenn Martinez created a 55 gallon barrel siphon to drain multiple bio-filter cinder beds. It was difficult to continuously check every individual cinder bed when there are a lot of them. So Glenn came up with a way to connect multiple bio-filter grow beds to one large 55 gallon barrel to flush all the grow beds at once.
Check it out? Glenn will talk about here in this video.