I have poor water pressure
My husband and I moved into this home about a year and a half ago. Since we've lived here we have had poor water pressure. It is a manufactured home. When we turn on the water it has no pressure, but if we have the shower on for instance and we flush the toilet after the toilet refills and stops running then the water in the shower starts to come out hard with pressure. It will do this with all faucets, if the washer is running and we have the kitchen sink water running, when the wash cuts off then the sink water will start coming out with pressure. What do we do or how can this be fixed.
Thanks