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So I've decided on the main vents. On my 66ft line I am going to put a Gorton 2 on top of a wye strainer with a nipple to get as high as I can fit it. On the 47ft line i have 3 MOM #1s at the house so I was going to run those on an antler for that main. My question is, should I run 1/2" nipples to the main vents or 3/4"?