My shower pipes squeal when we have the shower on at moderate pressure. Full blast is too hard for me and feels like it could blow your skin off so we turn it on just below full blast and it squeals. We then turn it down a little at a time until the noise stops and at that pressure it is too soft. I am a renter of a town home built maybe 10 yrs ago and am wondering if there is any sort of easy fix i can do without involving the land lord. And I'm just curious what cause this.