Low water pressure in duplex

[Katherine Roberts]

Hi, 

We are about to close on a duplex. We had more inspections done and we noticed the water pressure is super light when multiple things are running. All the piping has been replaced. This seems like a big deal to me because the water was barely coming out of the shower head when two other faucets were running. I feel like that is something that tenants would definitely complain about. Is there an easy fix to this?