I'd probably be using tap water, I don't know what the levels of cal or mag is in my tap water. I do have some cal/mag . I have also thought about the algae that will more than likely present itself in a outdoor hydro application.
I'm wanting to build a greenhouse for my outdoor so I can still control the photo periods and the heat in the summer as it gets up to 118 here.
Could you elaborate a lil more on the drip to waste stinky. I heard something about it before but wasn't interested at the time, already too much useless knowledge in my head trying to find find it's purpose. thanx for the reply I thought I was all alone in here.

D