View Full Version : Rain shower copper size

11-08-2008, 04:24 PM
I am building a new home and 1/2" copper is the standard line to the shower. If I wanted to make sure I get really good water pressure, would moving up to a 3/4" line help or is the flow restricted by the showerhead. The rain shower head I was interested in has a 2.5 gpm flow rate. Thanks

11-08-2008, 04:28 PM
A 1/2" supply can safely flow about 6-7 gallons/min depending on the supply pressure, so if this is the only head running, should have as much flow as the restrictor in the showerhead will allow.

11-08-2008, 08:18 PM
Rainshower heads typically don't have lots of pressure rather the water falls out kinda like a rain shower...