Well that's not bad. But, I figured that I would try a big rubbermaid tub to grow about 6 clones and if it works out good then I'll kep it. If not, I'm gonna take it apart and make a DWC system with another rubbermaid tub set to it just in case water levels get too low. I don't kow why but the whole float valve seems so ingenius to me and I love the concept.