: what is the pressure at the street? what are the pipes in the homes made of? what sizes are in the home? Yes the pipes need to be fully pressurized before you will get full pressure.
I replaced old galvanized water supply pipe with new 1" poly pipe directly from the meter to the shutoff box in my driveway. I expected an incredible improvement in my water pressure, but it was still a trickle! The water goes to 2 houses. Does the new water have to fill up every pipe in the houses to build pressure? What else could be the problem?