Hey guys, I'm moving away from growing in soil to hopefully reap the benifits of hydroponics. Now due to the size of the grow box i'm using i'm going to have to build a small DWC which should be fine as im wanting to keep the plants small anyway. Now the thing im needing some help/feedback is keeping the tank filled with water, Now while im about i'm going to be able to keep it all sorted but as i go away nearly every other week for up to 7days i won't be able to keep it topped up. With my soil grows i have an automatic watering system that comes on every 12 or 24 hours and can specify how much water it lets out, Could this be of any use? Cheers for any help!