I do the manifold with 1/2” poly (not pvc).. just cause it’s easier to work with..
and miraculous meds is right about the need for an anti siphon valve.. (I just use a 1/4” barb just inside the Rez) u’ll want that or u’ll drain ur entire Rez the first time ur pump shuts off.
I also quit using drip emitters ( no need for them and they only clog ). I just run 1/4” open ended lines (or I’ll throw a 1/4” ball valve on the end if I need to adjust flow a bit..
I agree !
I'm doing something a little different in flower though , & it seems to be working fine , no clogs so far . i use 6 port air line manifolds with a shutoff on each line from the manifold . so far so good !