Ive noticed since the change my plants have smelled way more potent but seems still having a problem....roots like perfect im starting to wonder if there is a salt buildup? Maybe getting locked out or something....how exactly do I flush a dwc system...do I just pour clean eater through the top and let it drain? If so how much/how long? Can someone give me detailed info plz ive tried to research and some of the sites dont give you details....hoping after I flush it helps....thx