I have an older Florida home and the gal. pipe is quickly closing up leaving me with low water pressure. I have put 3/4 pvc from the street to my utility room but haven’t connected it yet. Used cpvc coming into the house. Since hurricane Charlie blew part of my roof off I now have an opportunity to run some pipe easily through the ceiling. My question is: what is the best way to route the piping for maximum pressure at each fixture. I have 2 baths / showers. I have read about using manifolds and 3/8 px (?) pipe but would rather stick with copper. Is there a manifold system for copper. Would this really work to minimize pressure changes when more than one appliance is used? Thanks.
Run 3/4 copper to second last fixture and 1/2″ to last one. Anchor down real good every 6′ and put air chambers on each fixture drop. Also you might have to insulate the pipe too depends on the humidty.