Lettuce raft?

GreenFarmer · May 11, 2015

I know that it is basically a tomato site, i am making a lettuce raft that i want to oxygenate using a water pump. i had success using air pumps in the past but i am trying to find out what big farms use and how they inject the O2 using only water pumps. i have ideas to make a small gallon above the raft with a hose that goes into the raft and i can oxygenate the water in that small res and inject it into the raft. however i wonder if that would be enough. i really would love to know how they the pros do it before i go through trials and errors on my own. any knowledge on this is greatly appreciated

May 11, 2015	#1
GreenFarmer Tomatovillian™ Join Date: Apr 2015 Location: under my greenhouse Posts: 40	Lettuce raft? I know that it is basically a tomato site, i am making a lettuce raft that i want to oxygenate using a water pump. i had success using air pumps in the past but i am trying to find out what big farms use and how they inject the O2 using only water pumps. i have ideas to make a small gallon above the raft with a hose that goes into the raft and i can oxygenate the water in that small res and inject it into the raft. however i wonder if that would be enough. i really would love to know how they the pros do it before i go through trials and errors on my own. any knowledge on this is greatly appreciated