I have the same question. I'm on my first grow and using a drip system. I've been on this site before and had my head ripped off for asking a question that was already posted or in the FAQ. I've been cruising the site for 4 days and gotten some really good info. Everyone seems to be able to tell me what to do, but no one goes into any real detail as to the actual process'. Also to add to the question, when do I intoduce my seedlings to the drip system?