Bert Byfield wrote:
I've got a basement full of old half-inch copper pipe, and some of it
needs to be replaced. I want to do repairs in 3/4" pipe but I'm
wondering if that will cause problems with the water changing pipe
sizes on its way to an outlet. Can I do this?





It's not a bad idea to take 3/4 to the last "T" in the system , then
take the last two branchs on in 1/2" . BUT do keep in mind, that on
the hot side, you'll be slowing down the hot getting to the fixture.