said by Draiman:
Just stumbled onto a pressure tank manufactures site. You can use a tank without a pump as well. The cities pressure fills the tank. Given the pressure is like 55ish psi from the city that might be a possibility as well.
That said I called a plumber to come out and look at it tonight.
That only makes sense if you don't have a constant pressure source. You do.
It would only help in conjunction with a pressure booster pump.