Dude, the waterfarm is the easiest to maintain system out there. If you use the 3 part nutes, you won't have problems with clogs. If you use the floranova series, you will have clogs though. There is a lot of crap in those nutes which makes it gritty and super frothy stuff. I recommend sticking with the more liquidy style nutes. But I put an airstone in my reservoirs because it definitely makes a difference on your root mass and yield. Hope this helps.

SAP:thumbsup:

P.S. It is okay to flush every 2 weeks during the first 4 weeks of grow. Afterwards you will need to do that weekly.