Just a question regarding supply lines. I'm pretty sure I'm going with CPVC for the supply side. Planned on making a 3/4" or 1" manifold then branching off that with 3/4" for the main lines with 1/2" for all my fixtures. I have to supply 2 full baths, 1 kitchen and to outside spickets. Can I run all those off 1 main 3/4" line or can I have only a certain number of 1/2" lines off a 3/4"... THanks.