I'm in the planning process of re-plumbing my return line for my 240G DT. What I have now is a Vecta L1 going through 1 inch reinforced flex tubing, an Apex 1 inch flow meter, to a 1 inch bulkhead. The reason why i'm redoing this is after the bulkhead it reduces to 3/4inch pipe, and then a 3/4 loc-line splitter to two loc=line nozzles. The 3/4 inch lines are adding way to much head pressure for the L1. So what I want to do is replace the 3/4 inch to 1 inch Pvc to a 3/4inch wye to 3/4 inch loc-line for each side. I have the pieces to make all of that work. My question is around the flex tube to the bulkhead. Can I use a standard 1 inch straight barb and a couple of hose clamps? Or do I have to use a 90 degree elbow barb? I'd like to do with the straight barb to reduce as much head pressure as possible.