Do what I did.... go E&F or drip.well like the tittle says,I hate my dwc, everything that can go wrong will and has, so I hate it. I don't wann give up on hydro, jus want something with less problems
Use Lavarock for E&F, it's cheap if you need that. Hydroton for drip. I use hydroton for both and love it. DWC worked for me for a few times but I found the need to work around heat issues a chore. Drip and E&F don't have those issues.