Not to be a smart ***, but what kind of hydroponics are you building? It helps to know, if anyone is going to give advice, we need to know the particulars first.linzwa said:I don't really know what DWC means but I know I'm not doing Ebb and Flow or Aeroponics. Also, has anybody used a very large container (say 30 gal. or so) to store their water with the correct ph? Gonna be rolling soon so I am looking for any advice. Thanks.