Controlling return flow at connecting manifolds

jeremypbeasley

Hi! I’m getting closer assembling my 3 zone hydronic system. To conserve on space, I put a T between my facing manifolds. After installing this I realized there’s a change that returning water from the zone on left would shoot backwards into the zone on the right instead of going up the T. Is that likely? The hot water opposing it would be pressurized and resist it right? 

hot_rod

that is called bull heading a tee. Stagger 
the manifold, flip the tee and use an ell and nipple to connect to the second

It can work like you have it, but it is not a best practice

Flow will not go straight across like you mentioned   The circulator is creating a delta P and the flow wants to get back to where it once belonged, back to the inlet if the circulator