Quote Originally Posted by GrowHoHo
can anyone explain the ebb and flow system? Do you think it is better than the easy resovour system? I read this great article on 420mag and am still a bit confused on all the diferent hydro options and the cost vs reward vs simplicity vs effectiveness of the options. This authur makes a strong case for using this resovour method. Would anyone dispute that for a first time small grower? :rasta:

Marijuana Hydroponics by Concept420.com
The ebb and flow consists of 2 trays sitting on top of each other, with say a couple of 2x4's between them. They can be the same size trays. The bottom one will be the reservoir while the plants sit in the top tray. The top tray has a drain hole that might have a 1" pvc sticking straight up in it, held by a grommet making the height of the pvc pipe the highest level you want your nutes to be pumped up to be. Another hole is a line going down into the reservoir, attached to a pond pump. The pond pump is on a timer, say 15 minutes at a time, maybe 6 times every 24 hrs. The pump fills the top tray with the plants in it up to the top of the 1" pvc that may be 4" high, after that, if the pump keeps pumping, the "overflow" created by the pvc pipe will act as a drain. After the 15 minutes of pumping, the remaining nutes in the tray will drain out through the pond pump via gravity.