I'm plumbing my own new house and would like to have plenty of water pressure. I plan to use 1" copper after it enters the house and then convert to 3/4" after the manifold to each zone. I'm going to use a Marathon water heater which has the common 3/4" adapters. My question: Is there any point in using the 1" pipe up to the manifold if the hot water has to go through the 3/4" fitting on the water heater anyway?
No announcement yet.
Any point in 1" supply if water heater is 3/4"?