flow rate

Hey everyone, I have a small plumbing shop in southern CA. Regarding single family detached residence . Municipal city water supply, no well water involved. I keep noticing inch and a quarter pressure regulators installed from the builder, BUT the water meter is only 1 inch. I have also...

The printed instructions from Delta says 8-18" between a faucet valve and the tub spout when using a shower head and spout diverter. Can I shrink this distance to my liking since I've capped off the shower port on my faucet valve? (i.e. tub only, no shower). I've mocked things up so that my...

Let me start by saying I've been scouring the web to try and figure out what to do for my water situation. Only finding bits and pieces that pertain to me I thought it best to just lay out my situation and see if I could get answers here. I am CLEARLY not a plumber so I'll lay out as much...