Use a main trunk line or manifold with seperate lines with Pex?

I am remodeling my master bath to start with and want to redo the copper plumbing in the entire house as I go along. I want to use Pex for it’s ease and cost. I cannot decide if I want to run two main trunk lines for hot and cold and branch off to supply’s or use a manifold and run individual lines to supply’s.

It seems using a trunk line would be cheaper in the beginning but not sure in the long run. I was thinking of 1″ trunk lines branching to 1/2″ to supply’s.

What is every ones census?



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