Becoming a plumber is a two-pronged process that includes practical training and study. Traditionally, a hopeful plumber begins a four- or five-year apprenticeship program to receive technical education and complete the required hours of on-the-job training under a licensed professional. Plumbers who have successfully completed their apprenticeship are known as journeymen.
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?