Is this true? I'm getting ready to set up my 4 site again and I was good and blazed laying in my carport where the room is and was enjoying the pump hum. I wouldn't mind getting rid of it my only concern is what happens if I get roots clogging and had to turn recirc pump off? They'd be toast in hours. Also i just bought like 200 foot of airline and I'd have to come up with a diy to use it all.
are you asking if waterfall better than airstone? if so, not just yes, but hell yes. think about all the fountains you see in cities or golf courses etc they all spray water in the air to aerate, not just to make it look fancy.
my sprayers were in the middle of a 27 gal yellow/blk tote and sprayed from the top, 2 netpots per. so basically a 4 site.