Here's another one on DWC....this is a great thread and will answer any questions you have about it.

http://boards.cannabis.com/91976-wat...-dwc-club.html

The ph thread talks alot about RO and distilled water which is something to give serious thought to in hydro so study up on that. If you do go with one of those you'll need to use CalMag+ to replace lost minerals etc in your water to prevent defs. This is where (imo) people start veering off from what they are told. Allow me to PONTIFICATE :jointsmile: once more....if you do exactly what you are told...which may be buy this or use that for instance....so sometimes hydro can get expensive.....more so than soil I think; especially when you first start. Once you get things going it gets better and cheaper. But if you are willing to bite the bullet at first and commit the results are excellent :thumbsup: