Multiflow Brain V3RMULTIFLOW BRAIN V3R The Multiflow Brain Bucket is the heart of your multiflow system. This is what controls your system and tells it when to feed your plants. The V3R version is the latest version of the brain and is fully digital so you can choose exactly when you wish to flood your pots and drain them. The V3R Multiflow level controller takes the best parts of a V1 (easy to set up with an analogue timer) and seamlessly combines them with the