How do the waterfarms connect to the tubing to the controller. How do you flush your system to do your weekly or biweekly nute changeouts and flush. Usually I take each farm to the bath tub and rinse each one out and mix nutes seperately. I am seriously thinkin hard about getting a controller with the recirculation system upgrade but I need to know how much of a bitch it is to change out the nutes when using a controller and do I still need to take each farm out of the tent like I have been doing or is there a whole other method for flushing and remixing new nutes??? Also do I keep a whole fresh nute mix going in the controller or just ph'd water that will keep the reservoirs topped off (if I'm not doing a recirculate method). If I am doing recirculated setup, What do I have in the controller since all the nutes and water is constantly flowing from farms to controller to farms?