Like who cares what botanicare says. They were late comers to the coco game. IMO more people grow with no runoff than with. I'm sure the thousands of guys growing with Blumats and no runoff would be interested in hearing they are doing it wrong. I've done it both ways long enough to know runoff is a waste of nutes and no added benefits to growth. Dumb argument, both ways work great. If botanicare says different maybe they were growing tomatos or beans or don't know jack shit.