Re: 3/4" vs 1/2" copper
Posted by Terry Love on April 01, 2002 at 02:21:37:
In response to Re: 3/4" vs 1/2" copper

The link below has a pipe sizing chart you may find useful. Terry

: I am currently doing copper horizontal runs (underneath the house) to replace some remaining remnants of old gavanized pipes that are attached to 1/2" copper verticals. The water supply comes in by way of 3/4" copper running the length of one side of the house.

: Simple question: Should I use 3/4" pipe to tee off the existing 3/4" main for a run to the other side of the house (about 20 feet) and reduce to 1/2" when I get to the 1/2" vertical, or can I run 1/2" the entire distance.




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