I'm helping a friend do some remodeling and found that the water heater has 1" PEX coming from the 3/4" copper ports. It runs about 30 feet into the crawl space before connecting to some existing 3/4" copper that runs ~15 feet where it drops to 1/2" to the master bath. I'm concerned with how long it will take the hot water to reach the master bath due to the volume of the 1" PEX and 3/4" copper. Any idea why 1" pex was used? And is there (much) downside to T'ing into the PEX near the water heater with a 1/2" line for the master bath to get the water there faster?
Thanks in advance.
Thanks in advance.