Thanks again, Latewood, for the help. You're such a huge asset to the board, I've read soooo many of your posts :-)

Anyway, two more questions. 1. I'm runnig the res with totally clean water right now, how long should I run it for before adding nutes again? I was figuring about a day. 2. Should I run the clean water at a ph of 5.8ish? Or should I just leave it neutral?