they have a couple purposes the first and biggest function is when I open the valves the water doesn't dig deep holes in my rootmass, also as it splashes on the rock it breaks it up and kind of oxygenates it a bit(my actual resident hippie(my camper) also felt that the "water flowing over the rocks would release some minerals that would be beneficial", in my experience its best not to argue with him....lol)....also they retain a bite of warmth and expel it during the night.... I know im a bit of a hippie myself but if it aint broke....
I like that you understand the importance of good horizontal air flow the fans are everywhere. I see lots of people with no fans then come September,October the bot consumes 50% or more of the crop and they don't understand why.
I did not attend - tho raw said it was a good party. Been insanely busy since getting home last week. Pls keep me posted and I'll join at the next event.
Really nice hoops you worked last summer dude. You're really putting in the work. Kudos