I have a water meter with a 3/4" supply line that is fitted to an adaptor which then runs 1/2" to all the pipes in my house. I'm in the process of installing a PEX manifold system for some new connections and I'm wondering if there's any reason I shouldn't remove the old adaptor and just run 3/4" from the main supply to my manifold. It seems silly to leave it as is while I'm doing the other work.
The manifold has a 3/4" PEX input with 1/2" outbound PEX connectors on valves.
For what its worth, the plan is to then run one of the outputs from the manifold to the existing 1/2" copper pipe to supply the lines that aren't being added. All pipes in question are exposed and easy to access in the basement.