Several of the nation's larger cities were providing water to their residents during the first decade of the nineteenth century, but only infrequently was water actually brought into homes. City-provided water was used in large part to fight fires and flush streets. Household water was most likely taken from a tap located outside of the house or a common hydrant. For those not connected to city mains, and even some who were, there were still other ways to obtain water. If a stream was not near by, there was rain runoff from a roof. It could be collected in one or more tanks located in out-of-the-way places in a house and feed the plumbing system through gravity.
I was disappointed with the pressure of a tub and shower that were plumbed with 1/2 supply lines (2nd floor). Could be low pressure from the street, but I want to replace with 5/8. Plus, I'd like to have 2 back to back showers, one inside and one outside. So, I had intended to bring a 1 supply to both, then branch up to valves and shower head with 5/8. Finally, I thought pressure from the street was typically 55 to 70 psi and I am concerned if pvc can take that.Any thoughts?