Beachcomber wrote:
I have a raised-elevation freestanding house on city water at the end
of the line with a long driveway. The problem is low water pressure
throughout the house. It's low coming into the house (20 psi or
so...) Otherwise..., the plumbing is OK.

Here's the first decision tree:

Was the water pressure ever adequate?

If yes, did you change anything?

If no, it's the city's problem.