Looking great CS! It will be interesting if you can develop a strain that makes twins. That would be kind of neat as long as it doesn't hermie!
We got almost the same flowering setup (3 lights) now.
Sometimes I read about what you guys do with soil and start considering it. I just can't or won't do it. I'm convinced I had more bug problems before I switched to soilless and then hydro. I ewnt back and forth about how to handle mothers, but have decided to go soilless since I already have hydro nutes on hand. Also, I don't really want this same mix for a mother. She will use up the resources in the mix eventually, so I'll have to fertilize anyway. I only need veg growth too, so a lot of those amendments would not benefit my.
I'm looking forward to your experiments.
iSmokes got it. Add frozen water bottles. Just gather up some soda bottles, fill with water, and freeze. Keep enough so you can rotate them. Depending on the size of the bottle, size and temp of the reservoir, you may need to change them several times a day.
And to answer your question... Yes, that's exactly what a chiller does. You set a temperature, and tries to cool until it reaches that temperature.