We live in a new construction home. There are 3.5 bathrooms in our house. In one of the bathrooms the water pressure is less than in the others (in both the sink and the shower) and it takes a really long time for the water to get hot. The bathroom is very close to both the mater bathroom and the laundry room and we have no issues in either of these. The builder is being no help and our warranty expires next month. Any ideas on what could cause this in just this one bathroom? Thanks.