The controller kit is attached to a bucket the same size as the pots you use for your plants.
Your buckets that the plants sit in are connected to each other by generally 1/2" tubing. The holes are drilled on the side of each bucket as close to the bottom as possible. A grommet is inserted and a barb fitting goes into the grommet and the tubing is attached to the fitting(s). You can have several (I have 7) buckets hooked up in tandem, all having "Ts inserted in the rubber grommets and maybe 12-15" of tubing going from one bucket to the other. The end bucket would not need a T, but just an elbow. Then the other end is hooked up to the control bucket also at the lowest point possible.
HOpe this helps

keylime
keylime Reviewed by keylime on . Few questions about EBB & GRO bucket system setup Hi all, Im planning on starting my first hydro grow here pretty soon and im going to be using a DIY EBB & GRO system. I found a kit to build the controller box for the bucket: Ebb & Flow Control Module Kit - $89.95 : VerticalHydro Shop!, Free Shipping on Orders Over $99.99 Has anybody used this particular kit before?? Anyways i need help understanding how the grow buckets should be connected together. Do i just drill 2 holes in the bottoms of the buckets on opposite ends except for Rating: 5