Residential Code of NYS 2010 version (based on 2006 IRC)
I have a new SFD being constructed. the water authority speced 3/4" COPPER water service pipe from the curb box to the interior shutoff/meter assembly. The contractor switched to 3/4" Pex. Should the substitution of the pex for the copper required the pex to be increased one pipe size due to ID and resistance to flow? Our water purveyor authority stops at the curb box but has always recommended an increase in pipe size if Pex is installed as the service piping. Thanks for the help.
I have a new SFD being constructed. the water authority speced 3/4" COPPER water service pipe from the curb box to the interior shutoff/meter assembly. The contractor switched to 3/4" Pex. Should the substitution of the pex for the copper required the pex to be increased one pipe size due to ID and resistance to flow? Our water purveyor authority stops at the curb box but has always recommended an increase in pipe size if Pex is installed as the service piping. Thanks for the help.