I'm thinking of going to DWC, but i would like to know a few things. Is yield substantially higher with DWC than soil? Will i need to fill/change the water every day if so how many hours can it go before i have to fill it up with more water? How much water does it use? Can i get rid of that chemical taste. I plan on growing 4 plants maximum. 7ft (height) x 5ft (length) x 2ft (width) is my space. And if you can what are the disadvantages and other advantages with DWC. Thank you.