We live in a 1930 Brick Cape Cod home. The problem is in our upstairs bathroom. We have very low hot water pressure (like not much more than a trickle). The pressure is so bad that we've had to turn the hot water temp on our heater up too high, just so we can add some cold water to increase the shower pressure...

The odd thing is that the hot water pressure in our downstairs kitchen and 1/2 bath is fine. The cold water is also fine in all areas...It is only a problem in our upstairs shower and sink.

Help please...we now dread the shower because there is either no pressure or we have to get a cold shower...not great in the Northeast right now.